Best Tankless Water Heaters with 2.64 GPM: 14 Spec-Based Picks
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Finding the best tankless water heaters with 2 64 gpm requires looking at published specs. We compared 14 models to identify the top options. The Camplux 2.64 GPM Portable Propane Water Heater leads because it operates on water pressures down to 3.6 PSI. This low-pressure startup makes it ideal for off-grid camping and low-pressure outdoor showers. Our picks rely strictly on the specifications published on the listings. This guide helps you decide which unit fits your camping or cabin needs.
Quick picks
The best fit for you
- You need steady hot water with low-pressure startup Camplux 2.64 GPM Portable Propane Water Heater It operates on water pressures down to 3.6 PSI and delivers 68,000 BTU.
- You want the lightest portable unit for camping Camplux 2.64 GPM Portable Propane Water Heater Its 15-pound chassis and integrated handle make it easy to carry to campsites.
- You need a compact natural gas indoor solution Camplux CX264WNG Natural Gas Indoor Heater It uses natural gas and fits small spaces with a 5.9-inch width.
- You require high-altitude support for RV travel Camplux Elite Series RV Propane Water Heater It handles elevations up to 9,800 feet with tight temperature stability.
Our 14 picks
Camplux 2.64 GPM Portable Propane Water Heater
Best for: off-grid camping and low-pressure outdoor showers
- Flow Rate
- 2.64 GPM (what this guide is about)
- Fuel Type
- Propane
- BTU
- 68,000 BTU/hr
- Installation Location
- Outdoor
- Dimensions
- 21.7 x 13 x 6.1 inches
- Use
- Camping
View on Amazon: Camplux 2.64 GPM Portable Propane Water Heater
This portable outdoor tankless water heater runs on propane and delivers 2.64 GPM on demand. With a 68,000 BTU output, it activates at water pressures as low as 3.6 PSI and handles up to 110 PSI. It weighs 21 pounds and measures 21.7 by 13 by 6.1 inches. You will find it suited for camping trips, off-grid cabins, and outdoor showering where low operating water pressure is common.
Pros
- Delivers 2.64 GPM flow rate with a 68,000 BTU maximum output
- Ignites at low water pressure between 3.6 and 110 PSI
- Shuts off gas supply automatically if water temperature exceeds 167 °F
- Includes an anti-freezing drain plug to discharge residual water
Cons
- Rated for outdoor installation only
- Requires a liquid propane supply without natural gas support
Good fit if
- You need a portable outdoor propane water heater delivering 2.64 GPM.
- You use a low-pressure water supply between 3.6 and 110 PSI off the grid.
- You want built-in safety shutoffs for flame failure and overheating.
Skip if
- You need an indoor-mounted water heater.
- You require a unit configured for natural gas.
Verdict: Camplux 2.64 GPM Portable Outdoor Propane Water Heater delivers steady high-flow outdoor hot water at 68,000 BTU while operating on water pressures down to 3.6 PSI. Its portable 21-pound frame and automatic safety shutoffs make it a practical outdoor pick.
Camplux 2.64 GPM Portable Propane Water Heater
Best for: outdoor camping and off-grid cabin use
- Flow Rate
- 2.64 GPM (what this guide is about)
- Fuel Type
- Propane
- BTU
- 68,000 BTU/hr
- Installation Location
- Outdoor
- Temperature Control
- 50°F–122°F
- Dimensions
- 13.0 x 7.3 x 28.5 in
View on Amazon: Camplux 2.64 GPM Portable Propane Water Heater
This portable propane tankless water heater delivers a flow rate of 2.64 GPM with a maximum heat output of 68,000 BTU per hour. It operates on water pressure between 3.6 and 110 PSI and supports a temperature rise from 50°F to 122°F. It suits you if you need outdoor hot water for cabins, camping, or off-grid setups and want an included rain cap and shower kit.
Pros
- 68,000 BTU/hr heat output with a 2.64 GPM flow capacity
- Low startup water pressure requirement of 3.6 PSI
- Includes 4.33-inch stainless steel rain cap and 5-foot shower kit
- Temperature adjustment from 50°F to 122°F with LED display
Cons
- Outdoor installation only
- Does not include required water inlet hose or 2D batteries
- Requires a separate water pump if operating from a water tank
Good fit if
- You need an outdoor propane heater that functions with water pressure as low as 3.6 PSI.
- You want an included rain cap and windproof shutters for outdoor weather protection.
Skip if
- You plan to install the heater indoors.
- You do not have a separate water pump for drawing from a water tank.
Verdict: Camplux 2.64 GPM Portable Propane Water Heater provides reliable off-grid hot water with low-pressure startup and integrated weather protection.
Camplux 2.64 GPM Portable Propane Water Heater
Best for: portable off-grid camping setups on propane
- Flow Rate
- 2.64 GPM (what this guide is about)
- Fuel Type
- Propane
- Dimensions
- 21.7 x 13 x 7.09 inches
- Use
- Camping
- Weight
- 20.9 pounds
View on Amazon: Camplux 2.64 GPM Portable Propane Water Heater
This Camplux tankless water heater supplies 2.64 GPM using liquid propane fuel for off-grid and camping applications. The unit measures 21.7 inches high by 13 inches wide by 7.09 inches deep and weighs 20.9 pounds. It suits you if you need a portable outdoor propane setup for camping, provided you accept a refurbished build with potential minor exterior marks.
Pros
- Delivers 2.64 GPM flow rate for camping use
- Weighs 20.9 pounds for portable transport
- Compact dimensions of 21.7 x 13 x 7.09 inches
- Uses standard liquid propane fuel
Cons
- Refurbished condition may show minor blemishes or scratches
- May arrive in generic packaging rather than original box
Good fit if
- You need a 2.64 GPM propane water heater for camping setups.
- You want a portable unit weighing approximately 20.9 pounds.
- You do not mind owning a refurbished unit with potential surface marks.
Skip if
- You require a factory-new unit free of cosmetic blemishes.
- You need an indoor-rated tankless heating system.
Verdict: Camplux 2.64 GPM Portable Propane Water Heater delivers 2.64 GPM in a 20.9-pound portable frame for camping. It is a solid choice if you need outdoor propane heating and do not mind refurbished hardware.
GASLAND 2.64 GPM Portable Outdoor Propane Water Heater
Best for: portable outdoor and off-grid propane water heating
- Flow Rate
- 2.64 GPM (what this guide is about)
- Fuel Type
- Propane
- BTU
- 68,000 BTU/hr
- Installation Location
- Outdoor
- Dimensions
- 13 (L) x 5.9 (W) x 18.5 (H) inches
- Use
- Camping
View on Amazon: GASLAND 2.64 GPM Portable Outdoor Propane Water Heater
This portable outdoor propane water heater delivers a 2.64 GPM flow rate powered by 68,000 BTU/hr of heat output. It runs on a standard 20-pound propane tank and requires two D batteries for electronic ignition. If you need portable hot water for campsites, cabins, or washing gear outdoors, this 17.2-pound unit provides on-demand heating with an included shower head and regulator.
Pros
- Delivers 2.64 GPM flow rate with 68,000 BTU/hr output
- Includes CSA certified regulator, garden hose adapter, and 5-foot shower head
- Features a folding sliding handle and 17.2-pound portable weight
- Pop-up battery box allows quick replacement of two D batteries
Cons
- Outdoor installation only; not rated for indoor use
- Requires two D batteries for ignition that are not included
- Not fully waterproof; prolonged rain exposure causes damage
Good fit if
- You need 2.64 GPM of hot water in off-grid or outdoor locations.
- You plan to run the heater using a standard 20-pound liquid propane tank.
- You want a portable unit with an integrated handle weighing under 18 pounds.
Skip if
- You need an indoor-rated water heater.
- You cannot store the heater in a dry, sheltered location away from rain.
Verdict: GASLAND 2.64 GPM Portable Outdoor Propane Water Heater delivers 68,000 BTU/hr of off-grid heating in a compact 17.2-pound frame with included hookups. It provides dependable portable hot water if you keep it sheltered from prolonged rain.
Camplux 2.64 GPM Portable Propane Water Heater
Best for: portable outdoor camping and off-grid RV use
- Flow Rate
- 2.64 GPM (what this guide is about)
- Fuel Type
- Propane
- Installation Location
- Outdoor
- Certification
- CSA
- Dimensions
- 12.9 x 5.9 x 18.5 in
- Use
- Camping, RV
View on Amazon: Camplux 2.64 GPM Portable Propane Water Heater
This portable outdoor tankless water heater delivers a flow rate of 2.64 GPM using liquid propane. Weighing 15 pounds with dimensions of 12.9 by 5.9 by 18.5 inches, it includes a three-level carry handle, an LCD display, and tool-free ignition powered by two D-cell batteries. It suits you if you need a high-flow, off-grid water heater for camping, washing gear, or outdoor RV use connected to a standard 20-pound propane cylinder.
Pros
- Delivers a 2.64 GPM flow rate using liquid propane
- Weighs 15 pounds and includes a three-level carry handle
- Comes with a 5-foot CSA-certified gas regulator and shower kit
- Tool-free battery compartment powers ignition with two D-cell batteries
Cons
- Rated strictly for outdoor installation
- Requires two D-cell batteries and an external propane tank not included in the box
Good fit if
- You need a 2.64 GPM propane water heater designed for outdoor camping or RV setups.
- You want a lightweight 15-pound unit with a built-in handle and digital display.
Skip if
- You need an indoor-rated tankless water heater.
- You prefer a unit that plugs into standard AC electrical outlets rather than using D batteries.
Verdict: Camplux 2.64 GPM Portable Outdoor Propane Water Heater provides high-volume off-grid hot water in a lightweight 15-pound chassis. Its integrated handle and battery-operated ignition make it a practical choice for outdoor showers and campsite utility.
GASLAND 2.64 GPM Portable Propane Water Heater
Best for: low-pressure off-grid outdoor washing and camping
- Flow Rate
- 2.64 GPM (what this guide is about)
- Fuel Type
- Propane
- BTU
- 68,000 BTU/hr
- Installation Location
- Outdoor
- Certification
- CSA
- Dimensions
- 21.6 x 13 x 13 inches
View on Amazon: GASLAND 2.64 GPM Portable Propane Water Heater
This portable outdoor liquid propane tankless water heater delivers up to 2.64 GPM with a maximum output of 68,000 BTU per hour. It starts with water pressure as low as 3.6 PSI and runs off a standard 20-pound propane tank. Two D-cell batteries power the electronic ignition, removing the need for grid power. It suits you if you need reliable outdoor washing for cabins, RV trips, or campsites.
Pros
- Low startup water pressure requirement of 3.6 PSI
- Operates off-grid using two D-cell batteries and a 20 lb propane tank
- Delivers up to 68,000 BTU/hr with temperature rise up to 109.4°F
- Includes CSA certified gas regulator, hose, and 5-foot shower head
Cons
- Not suitable for elevations above 3,300 feet
- Cannot withstand prolonged rain exposure or strong wind
- Requires manual draining before winter storage
Good fit if
- You need off-grid hot water for camping, RVing, or cabin use.
- You have low-pressure water sources down to 3.6 PSI.
- You want an included shower head and regulator kit.
Skip if
- You camp or live at elevations above 3,300 feet.
- You need an indoor-rated water heater installation.
- You cannot shelter the unit from direct heavy rain.
Verdict: GASLAND 2.64 GPM Portable Propane Water Heater provides steady 68,000 BTU/hr off-grid heating down to 3.6 PSI water pressure. It is a solid outdoor option for campsites and cabins below 3,300 feet elevation.
Camplux Elite Series RV Propane Water Heater
Best for: high-altitude RV travel and off-grid boondocking
- Flow Rate
- 2.64 GPM (what this guide is about)
- Fuel Type
- Propane
- BTU
- 65,000 BTU
- Installation Location
- Outdoor
- Temperature Control
- ±1°F
- Dimensions
- 12.6 x 12.6 x 15.4 inches
View on Amazon: Camplux Elite Series RV Propane Water Heater
This RV propane tankless water heater features an integrated mixing tank and delivers a 65,000 BTU output. It supports standard 2.64 GPM demands with a maximum 3.9 GPM flow rate, igniting at 0.5 GPM. You get ±1°F temperature regulation and operational stability up to 9,800 feet elevation. It suits you if you need a permanent RV retrofit with an included smart remote and access door.
Pros
- Low 0.5 GPM activation flow rate
- Operates at elevations up to 9,800 feet
- Precise ±1°F temperature control with built-in mixing tank
- Includes smart remote and 15-by-15-inch access door
Cons
- Weighs 35.4 pounds, making it heavier than portable camp heaters
- Requires fixed mounting with a 15-by-15-inch exterior opening
Good fit if
- You want a dedicated RV replacement heater with an included door and remote.
- You camp at high altitudes up to 9,800 feet.
- You need a low 0.5 GPM ignition threshold to conserve water while boondocking.
Skip if
- You need an ultra-portable heater for open-air camp setups.
- You do not have space for a 15-by-15-inch exterior door retrofit.
Verdict: Camplux Elite RV Tankless Water Heater delivers 65,000 BTU heating with tight temperature stability for permanent RV retrofits. Its 0.5 GPM activation and 9,800-foot altitude rating handle demanding off-grid conditions.
GASLAND 2.64 GPM Outdoor Propane Water Heater
Best for: off-grid outdoor showering and cabin use
- Flow Rate
- 2.64 GPM (what this guide is about)
- Fuel Type
- Propane
- BTU
- 68,000 BTU/hr
- Installation Location
- Outdoor
- Certification
- CSA
- Dimensions
- 21.7 x 13 x 13 inches
View on Amazon: GASLAND 2.64 GPM Outdoor Propane Water Heater
This outdoor propane water heater delivers up to 2.64 GPM with a maximum heat output of 68,000 BTU/hr. Powered by two D-cell batteries for ignition and connected to a standard 20-pound propane tank, it runs entirely off the electrical grid. It includes a digital LED temperature display, regulator, and shower head, making it suitable if you need portable hot water for off-grid cabins, camping setups, or outdoor washing.
Pros
- Delivers 2.64 GPM with up to 68,000 BTU/hr heating capacity
- Electronic ignition runs off-grid using two D-cell batteries
- Includes gas regulator, mounting hardware, and 5-foot shower head
- LED digital screen provides real-time water temperature readout
Cons
- Rated strictly for outdoor installation
- Lacks an integrated water pump
Good fit if
- You need a portable off-grid water heater fueled by a standard 20 lb propane tank.
- You want an included shower head and regulator kit ready for outdoor setup.
- You require an LED digital display to track output temperature.
Skip if
- You need a heater certified for indoor living spaces.
- You require a built-in pump to draw from unpressurized water sources.
Verdict: GASLAND 2.64 GPM Outdoor Propane Water Heater delivers 68,000 BTU/hr of off-grid heating capacity alongside a full hardware and shower kit. Its outdoor-only rating and unpumped design require an exterior location with an existing pressurized water supply.
GASLAND 2.64 GPM Outdoor Propane Water Heater
Best for: off-grid outdoor camping and cabin setups
- Flow Rate
- 2.64 GPM (what this guide is about)
- Fuel Type
- Propane
- BTU
- 68,000 BTU/hr
- Installation Location
- Outdoor
- Certification
- CSA
- Dimensions
- 13" W x 21.7" H x 13" D
View on Amazon: GASLAND 2.64 GPM Outdoor Propane Water Heater
This outdoor propane water heater delivers up to 2.64 GPM with a heat output of 68,000 BTU/hr. It runs on a standard 20 lb liquid propane tank and uses two D-cell batteries for electronic ignition, requiring no electrical hookup. A digital LED screen displays the current water temperature. You get an included shower head and regulator, making it suitable for off-grid cabins, camping trips, and washing gear outdoors.
Pros
- Delivers 2.64 GPM with a 68,000 BTU/hr heating capacity
- Operates off-grid using two D-cell batteries for ignition
- Includes gas regulator, hose, and 5-foot shower head
- LED digital display shows real-time water temperature
- CSA certified with overheat, freeze, and flame failure protection
Cons
- Rated only for outdoor installation
- Not fully waterproof; prolonged rain exposure can cause damage
- Requires manual draining via drain plug to prevent winter freezing
Good fit if
- You need portable hot water for camping, cabins, or washing without an electrical outlet.
- You want an included gas regulator and shower head in the box.
- You plan to run your heater from a standard 20 lb propane tank.
Skip if
- You need an indoor-installed water heater.
- You cannot store or shield the unit from prolonged rainfall.
- You want automatic freeze protection without manually draining the unit.
Verdict: GASLAND 2.64 GPM Outdoor Propane Water Heater provides reliable off-grid heating at 68,000 BTU/hr with battery ignition and included shower accessories. It is a solid choice when you need on-demand outdoor washing without standard electrical hookups.
Camplux 2.64 GPM Portable Propane Water Heater
Best for: portable off-grid camping and cabin washing
- Flow Rate
- 2.64 GPM (what this guide is about)
- Fuel Type
- Propane
- BTU
- 68,000 BTU
- Installation Location
- Outdoor
- Temperature Control
- 50°F~122°F
- Certification
- CSA
View on Amazon: Camplux 2.64 GPM Portable Propane Water Heater
This outdoor propane unit delivers 2.64 GPM with a 68,000 BTU output, designed for off-grid cabins, barns, and campsites. It weighs 18 pounds and operates across a 3.6 to 110 PSI water pressure range. Mechanical control knobs and an LED display let you manage a temperature rise between 50°F and 122°F. It suits you if you need a lightweight, portable setup ignited by two D batteries.
Pros
- Delivers 2.64 GPM flow rate with 68,000 BTU output
- Operates across a wide water pressure range of 3.6 to 110 PSI
- Weighs 18 pounds for easy transport
- Includes 5-foot gas regulator and quick-connect shower kit
Cons
- Outdoor installation only
- Requires 2D batteries and water inlet hose not included in the box
Good fit if
- You need a portable outdoor propane water heater for camping or cabins.
- You have low water pressure down to 3.6 PSI.
- You want an included gas regulator and shower head assembly.
Skip if
- You need a water heater certified for indoor installation.
- You prefer an AC-powered ignition over battery power.
Verdict: Camplux 2.64 GPM Portable Outdoor Propane Water Heater provides 68,000 BTU of heating capacity for off-grid outdoor applications. Its low water pressure activation and lightweight design make it a practical choice for field use.
Camplux CX264WNG Natural Gas Indoor Heater
Best for: indoor natural gas heating
- Flow Rate
- 2.64 GPM (what this guide is about)
- Fuel Type
- Natural Gas
- BTU
- 68,000 BTU
- Installation Location
- Indoor
- Voltage
- 120V
- Temperature Control
- ±1°F
This Camplux unit delivers 2.64 GPM of hot water using natural gas. It features a 68,000 BTU output and an oxygen-free copper heat exchanger. The compact design saves space in small living areas. You get precise temperature control within ±1°F. Anti-freeze protection activates below 39°F. It is built for indoor use with standard venting options.
Pros
- 2.64 GPM flow rate for 1-2 water points
- 68,000 BTU heating capacity
- ±1°F temperature stability
- Anti-freeze protection below 39°F
Cons
- Indoor installation only
- Requires 3-inch stainless steel vent pipe
- Limited to 2.64 GPM output
Good fit if
- You need an indoor natural gas heater
- You want precise temperature control
- You have limited space for installation
Skip if
- You require outdoor portable use
- You need propane fuel type
- You want higher flow rates
Verdict: Camplux CX264WNG Natural Gas Indoor Heater fits users needing a compact, precise indoor natural gas solution. It delivers stable hot water for small spaces without the bulk of tank systems.
Flame King 2.64 GPM Portable Propane Water Heater
Best for: Sheltered outdoor washing and off-grid camping
- Flow Rate
- 2.64 GPM (what this guide is about)
- Fuel Type
- Propane
- BTU
- 68,000 BTU/hr
- Installation Location
- Outdoor
- Certification
- CSA
- Dimensions
- 21.5 x 7 x 13 inches
View on Amazon: Flame King 2.64 GPM Portable Propane Water Heater
This Flame King portable tankless water heater delivers up to 2.64 GPM with a 68,000 BTU heat output using liquid propane. It weighs 18 pounds and features a durable steel case, digital temperature display, and manual knobs for gas, water, and seasonal adjustments. If you need portable hot water for camping, cabins, or washing pets outdoors under a protective awning, this unit gives you dependable off-grid capability with standard grill tanks.
Pros
- Delivers 2.64 GPM flow rate with 68,000 BTU heat output
- Includes CSA-certified regulator and 5-foot hose for standard QCC1 propane tanks
- Comes with shower head and 4.5-foot stainless steel wrapped hose
- Digital temperature meter and separate knobs for gas, water flow, and seasons
Cons
- Requires outdoor installation under an awning or cover to keep rain out of top vent
- Weighs 18 pounds, making it bulkier than lower-flow portable models
Good fit if
- You need portable outdoor hot water from a standard BBQ propane tank.
- You have a sheltered outdoor space such as an awning to protect the top vent from rain.
- You want separate manual control over gas levels, water flow, and seasonal settings.
Skip if
- You plan to install the water heater indoors.
- You need an open-air unit that operates without overhead weather protection.
Verdict: Flame King 2.64 GPM Portable Outdoor Propane Water Heater provides high-capacity heating and versatile control knobs for off-grid camping or pet washing. Its steel build and included propane regulator make it a practical field solution provided you keep it sheltered from direct rain.
Camplux 2.64 GPM Indoor Propane Water Heater
Best for: small homes needing indoor vented propane heating
- Flow Rate
- 2.64 GPM (what this guide is about)
- Fuel Type
- Propane
- Installation Location
- Indoor
- BTU
- 68,000 BTU
- Dimensions
- 5.91 × 5.91 × 20.3 inches
- Weight
- 23.8 pounds
View on Amazon: Camplux 2.64 GPM Indoor Propane Water Heater
This indoor tankless water heater delivers up to 2.64 GPM using liquid propane and a 68,000 BTU heating capacity. It plugs into a standard 120V electrical outlet for electronic ignition and power ventilation. You get an included two-inch horizontal vent pipe, bottom-mounted half-inch NPT connections, and a digital temperature screen. It fits your small home, cabin, or apartment setup when you need dedicated indoor water heating without a storage tank.
Pros
- Includes a 2-inch horizontal vent pipe for power ventilation
- Delivers up to 68,000 BTU heating output on demand
- Digital Fahrenheit display with Eco and Full burner settings
- Standard 120V plug with UL-listed cord for electronic ignition
Cons
- Requires a minimum water flow of 0.65 GPM to ignite
- Anti-freeze protection relies on manual drainage
- Propane tank connection requires a separate regulator and adapter
Good fit if
- You need an indoor propane water heater that includes a horizontal vent pipe.
- You have a standard 120V electrical outlet available at the install site.
- You want selectable Eco and Full burn settings to manage gas consumption.
Skip if
- You regularly run low-flow fixtures below the 0.65 GPM activation threshold.
- You require automated freeze protection without manual draining.
- You plan to mount your heater outdoors rather than venting inside.
Verdict: Camplux 2.64 GPM Indoor Propane Tankless Water Heater provides reliable indoor on-demand hot water with dedicated horizontal venting and standard 120V power ignition. Its 68,000 BTU burner and dual gas modes make it a solid fit for small homes and cabins.
Camplux Classic Series RV Propane Water Heater
Best for: high-altitude RV and camper hot water upgrades
- Flow Rate
- 2.64 GPM (what this guide is about)
- Fuel Type
- Propane
- BTU
- 65,000 BTU
- Certification
- CSA & NSF
- Dimensions
- 12.6 x 12.6 x 12.6 inches
- Use
- RV
View on Amazon: Camplux Classic Series RV Propane Water Heater
The Camplux Classic Series is a 65,000 BTU propane tankless water heater designed specifically for RVs and trailers. It delivers an on-demand flow rate of 2.64 GPM and reaches up to 3.9 GPM. The unit measures 12.6 by 12.6 by 12.6 inches and weighs 25.6 pounds. With altitude tolerance up to 9,800 feet and an included door replacement kit, you get reliable off-grid hot water.
Pros
- Outputs 65,000 BTU with up to 3.9 GPM maximum flow
- Operates at altitudes up to 9,800 feet and wind speeds up to Beaufort scale 9
- Includes 15 x 15-inch door, 5-foot remote controller, and 150 PSI relief valve
- Equipped with built-in anti-freeze protection below 43 degrees Fahrenheit
Cons
- Requires dedicated RV cut-out and door mounting
- Weighs 25.6 pounds, heavier than basic portable outdoor models
Good fit if
- You need an RV replacement heater fitting standard 4-gallon or 6-gallon tank cutouts.
- You camp at high elevations up to 9,800 feet.
- You want remote temperature control from inside your camper.
Skip if
- You need a portable hanging water heater without permanent RV mounting.
- You run an indoor residential setup requiring natural gas.
Verdict: Camplux Classic Series RV Propane Water Heater delivers 65,000 BTU and elevation support up to 9,800 feet in a compact RV footprint. It directly replaces traditional 4-gallon or 6-gallon tank models with continuous propane-heated water.
Specifications side by side
| Spec | Camplux 2.64 GPM Portable Propane Water Heater | Camplux 2.64 GPM Portable Propane Water Heater | Camplux 2.64 GPM Portable Propane Water Heater | GASLAND 2.64 GPM Portable Outdoor Propane Water Heater | Camplux 2.64 GPM Portable Propane Water Heater | GASLAND 2.64 GPM Portable Propane Water Heater | Camplux Elite Series RV Propane Water Heater | GASLAND 2.64 GPM Outdoor Propane Water Heater | GASLAND 2.64 GPM Outdoor Propane Water Heater | Camplux 2.64 GPM Portable Propane Water Heater | Camplux CX264WNG Natural Gas Indoor Heater | Flame King 2.64 GPM Portable Propane Water Heater | Camplux 2.64 GPM Indoor Propane Water Heater | Camplux Classic Series RV Propane Water Heater |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fuel Type | Propane | Propane | Propane | Propane | Propane | Propane | Propane | Propane | Propane | Propane | Natural Gas | Propane | not specified | Propane |
| Flow Rate | 2.64 GPM | 2.64 GPM | 2.64 GPM | 2.64 GPM | 2.64 GPM | 2.64 GPM | 3.9 GPM | 2.64 GPM | 2.64 GPM | 2.64 GPM | 2.64 GPM | 2.64 GPM | not specified | 3.9 GPM |
| BTU | 68,000 BTU/hr | 68,000 BTU/hr | not specified | 68,000 BTU/hr | not specified | 68,000 BTU/hr | 65,000 BTU | 68,000 BTU/hr | 68,000 BTU/hr | 68,000 BTU | 68,000 BTU | 68,000 BTU/hr | not specified | 65,000 BTU |
| Installation Location | Outdoor | Outdoor | not specified | Outdoor | Outdoor | Outdoor | Outdoor | Outdoor | Outdoor | Outdoor | Indoor | Outdoor | not specified | not specified |
| Voltage | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | 120V | not specified | not specified | not specified |
| Temperature Control | not specified | 50°F–122°F | not specified | not specified | not specified | not specified | ±1°F | not specified | not specified | 50°F~122°F | ±1°F | not specified | not specified | not specified |
| Certification | not specified | not specified | not specified | not specified | CSA | CSA | not specified | CSA | CSA | CSA | not specified | CSA | not specified | CSA & NSF |
| Dimensions | 21.7 x 13 x 6.1 inches | 13.0 x 7.3 x 28.5 in | 21.7 x 13 x 7.09 inches | 13 (L) x 5.9 (W) x 18.5 (H) inches | 12.9 x 5.9 x 18.5 in | 21.6 x 13 x 13 inches | 12.6 x 12.6 x 15.4 inches | 21.7 x 13 x 13 inches | 13" W x 21.7" H x 13" D | 21.7 x 13 x 7.1 inches | 13.7 x 5.9 x 5.9 inches | 21.5 x 7 x 13 inches | not specified | 12.6 x 12.6 x 12.6 inches |
| Use | Camping | Camping, Cabins | Camping | Camping | Camping, RV | Camping, RV, Cabins | RV | not specified | Camping, RV, Cabins | Camping, Cabins | not specified | Camping, RV, Cabins | not specified | RV |
| Features | not specified | not specified | not specified | Digital Display | not specified | Overheat Protection | not specified | not specified | Overheat Protection | Overheat Protection | not specified | not specified | not specified | not specified |
| Weight | 21 pounds | 18 pounds | 20.9 pounds | 17.2 pounds | 15 pounds | 22 pounds | 35.4 pounds | not specified | 23.4 pounds | 18 pounds | 19.1 pounds | 18 pounds | 23.8 pounds | 25.6 pounds |
| Size | 21.7*13*6.1 | not specified | not specified | not specified | not specified | not specified | not specified | 10L without Pump | 2.64 GPM | 13(L) x 7.1(W) x 21.7(H) inches | not specified | 10L - 2.64 GPM | 10L | not specified |
| Color | Gray | White | White | White | White | White | White | Silver | Light Silver | White | White | White | Black | Carbon Black |
| Model | BW264G | BD264C N1 | BW264-CA | G10N | F10CA | BS264 | Elite Series | BE264SN1 | BE264S | BD264 | CX264WNG | YSNBM264a | CM264 | Classic Series |
Is a 2.64 GPM Flow Rate Worth It for Your Setup?
This flow rate delivers a steady stream suitable for single-point outdoor use. Most models in this list provide 68,000 BTU to maintain temperature at this volume. You get enough water for camping showers, RV sinks, or cabin washing. However, this output is too low for simultaneous indoor use, like running a shower and a kitchen faucet. It is designed for portable or off-grid scenarios where water conservation matters.
Worth it if
- You need reliable hot water for single outdoor camping showers
- You are upgrading an RV with limited water pressure
- You want a compact unit for off-grid cabin washing
Skip it if
- You require hot water for multiple indoor fixtures at once
- You need high-volume filling for large tubs or pools
- You are installing a permanent whole-house indoor system
If you need similar flow rates for outdoor tasks, you can compare best pressure washers with 2 5 gpm.
How We Selected These Heaters
We identified these units by scanning Amazon listings for the specific 2.64 GPM flow rate in the title or feature list. We focused on published specifications to ensure accuracy. We only included one size or variant for each product family to keep the list clean and comparable. Every detail in this guide comes directly from those listing specs. We do not handle or test the hardware ourselves. You can trust these numbers as they appear on the manufacturer’s page.
We ordered the products by availability first. Next, we used the listing’s overall rating weighted by the number of ratings. Finally, we ranked them by how many of our core criteria the specs met. This method prioritizes reliable, well-reviewed options that match your flow rate needs. All information is static from the listing data. Live prices and stock levels are shown separately on the page.
Check BTU and Weight for Your Setup
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Match BTU to Flow Needs
Most propane models in this list deliver 68,000 BTU. This output maintains temperature at the 2.64 GPM flow rate for outdoor showers. The Camplux Elite Series RV unit uses 65,000 BTU. It is designed for RV retrofits where space is tight. Check the BTU rating to ensure the heater can heat water effectively. Higher BTU generally means better performance in colder conditions. Verify this spec matches your expected usage volume.
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Prioritize Low Weight for Portability
If you camp often, weight matters. The Camplux F10CA weighs only 15 pounds. It includes an integrated handle for easy carrying. The GASLAND G10N is also light at 17.2 pounds. Heavier units like the Camplux Elite Series RV weigh 35.4 pounds. These are better for permanent RV installs. Compare the weight specs to decide if you need a portable frame or a fixed mount. Lighter units are easier to transport to remote sites.
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Verify Indoor Venting Requirements
Most units here are for outdoor use only. The Camplux CX264WNG is rated for indoor natural gas installation. The Camplux CM264 is an indoor propane model requiring dedicated horizontal venting. You cannot use these indoors without proper ventilation setup. Always check the installation location spec. Outdoor units lack the safety features for enclosed spaces. Indoor models need specific venting paths. Match this spec to your available space.
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Check Activation Pressure Specs
Low-pressure startup is vital for off-grid setups. The Camplux BW264G operates down to 3.6 PSI. This allows use with gravity-fed water or small pumps. The GASLAND BS264 also supports low-pressure operation. Check the minimum activation pressure in the specs. Standard home pressure is higher. If you use a manual pump or gravity tank, you need a low PSI rating. This spec determines if the unit will ignite at all.
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Confirm Fuel Type Compatibility
You must match the fuel to your supply. Most models use propane. The Camplux CX264WNG uses natural gas. Propane requires a tank and regulator. Natural gas needs a fixed line. Do not assume interchangeability. Check the fuel type spec carefully. Using the wrong fuel damages the unit. Propane models like the GASLAND G10N include regulators. Natural gas units do not. Select the fuel type that matches your existing infrastructure.
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Assess Elevation and Altitude Rating
High altitude affects propane combustion. The Camplux Elite Series RV supports up to 9,800 feet. The GASLAND BS264 is rated below 3,300 feet. If you camp or live at high elevations, check the altitude rating. Standard units may fail to ignite or heat properly. The Elite Series handles demanding off-grid conditions. Verify this spec if you are above 3,000 feet. It ensures reliable performance in thin air.
Frequently asked questions
Can I use a 2.64 GPM tankless heater indoors?
Only specific models are rated for indoor installation. The Camplux CX264WNG is designed for indoor use with natural gas. Other units, such as the GASLAND BE264SN1, are outdoor-only and require exterior placement. Always verify the installation location in the specifications before purchasing to ensure safe ventilation and compliance.
Do these heaters work with low water pressure?
Several models operate effectively at low water pressures. The Camplux BW264G and GASLAND BS264 start functioning at pressures as low as 3.6 PSI. This feature is useful for off-grid setups or campsites with weak municipal supply. Check the activation pressure specifications to confirm compatibility with your water source.
What is the typical weight of a portable 2.64 GPM unit?
Portable propane models generally weigh between 15 and 23 pounds. The lightest option is the Camplux F10CA at 15 pounds, which includes an integrated handle for easy transport. Heavier units like the GASLAND BE264S weigh 23.4 pounds. Weight impacts portability for camping or RV storage.
Are 2.64 GPM heaters suitable for RV use?
Yes, several models are designed for RV applications. The Camplux Elite Series and Classic Series offer 2.64 GPM flow rates with high-altitude support up to 9,800 feet. These units replace traditional small tank models. Ensure the fuel type matches your RV’s propane or natural gas supply.
How much gas do these heaters consume?
Most propane models in this list deliver 68,000 BTU of heating capacity. The Camplux Elite Series and Classic Series use 65,000 BTU. This output maintains water temperature at the 2.64 GPM flow rate. Higher BTU ratings generally support faster heating and better temperature stability during use.
Do I need a pump for these tankless water heaters?
Some models require an external pump for adequate water flow. The GASLAND BE264SN1 is an unpumped design that needs an existing pressurized water supply. Other units, like the Camplux BW264G, operate on low pressure without a pump. Verify if the unit includes a pump or requires one for your setup.
What safety features are included in these heaters?
Many models include overheat protection and automatic shutoffs. The GASLAND BS264 and BE264S feature overheat protection to prevent dangerous temperature spikes. The Camplux BW264G includes automatic safety shutoffs for added security. These features are critical for unattended outdoor use or camping environments.
Can I use natural gas with these 2.64 GPM units?
Only the Camplux CX264WNG is rated for natural gas. All other listed models use propane as their fuel source. Natural gas units require specific venting and connection standards. If you have a natural gas line, verify that the model explicitly supports this fuel type before installation.