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Flame King Portable Tankless Water Heater Review: Specs, Pros and Cons

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This flame king portable tankless water heater review covers the 2.64 GPM propane model. It is a compact, outdoor unit designed for instant hot water without a tank. The unit delivers 68,000 BTU of heating power. It produces up to 2.64 gallons per minute. This flow rate supports quick showers or washing tasks. The steel casing keeps it durable for travel. You get full control over gas and water settings. A digital meter shows the water temperature in real time. It is CSA safety approved for peace of mind.

What stands out

  • 68,000 BTU/hr heating output for fast water heating
  • 2.64 GPM flow rate for adequate shower pressure
  • CSA safety certified with auto-cut off and anti-frozen protection
  • Lightweight 18-pound design for easy portability
  • Includes CSA-certified regulator and 5-foot hose for BBQ tanks

Who it fits

Good fit for

This unit suits campers, RV travelers, and off-grid cabin owners who need reliable hot water. The 2.64 GPM flow is ideal for solo showers or washing pets. Its propane fuel source works well where electricity is limited. The compact size fits easily in vehicle storage. You can adjust settings for winter or summer conditions. The included shower head and hose make setup quick. It is perfect for outdoor use under an awning.

Who should skip it

Skip this if you need indoor installation. The data specifies outdoor use only. Rain can enter through the top vent if not covered. Do not buy if you need higher flow rates. The 2.64 GPM may feel weak for multiple users. It lacks a dedicated remote or app control. You must manually adjust knobs. If you require a permanent home solution, look for a larger, fixed unit instead.

Verdict: This portable heater delivers solid performance for outdoor and mobile use. Its safety features and adjustable controls make it a practical choice for camping.

Flame King Key Specs Explained

68,000 BTU/hr

This heating output determines how quickly the unit raises water temperature. A 68,000 BTU rating provides strong heating power for outdoor use. It helps maintain consistent hot water flow during cooler weather. You should compare this to indoor units that often exceed 100,000 BTU. This level is sufficient for showers and washing tasks in portable setups.

2.64 GPM

Gallons per minute indicate the volume of hot water delivered. This flow rate supports a comfortable shower for one person. It is lower than standard indoor tankless heaters that often reach 4 to 8 GPM. You can expect steady flow for bathing or washing hands. This spec is critical for determining if the unit meets your daily water usage needs.

Propane

Fuel type defines the energy source required for operation. Propane allows this unit to function off-grid or in remote locations. You do not need electrical connections to generate heat. Compare this to electric models that require dedicated circuits. Propane offers portability and independence from home power infrastructure for outdoor adventures.

21.5 x 7 x 13 inches

These dimensions describe the physical footprint of the heater. The compact size fits easily into RV storage or camping gear. You can carry it without significant bulk. Compare this to larger indoor units that require permanent mounting. The small volume ensures it does not take up much space in tight areas.

CSA

Certification indicates the unit meets specific safety standards for gas appliances. CSA approval ensures proper construction and leak prevention. You can trust the internal mechanisms are tested for safety. Compare this to uncertified imports that may lack rigorous testing. This mark provides confidence in the device's reliability for gas-powered heating.

Design and Build Quality

The listing describes a white steel case that measures 21.5 by 7 by 13 inches. This compact footprint makes the unit easy to carry for camping or road trips. It weighs 18 pounds, which is manageable for one person to lift. The durable steel construction suggests it can withstand rough handling in outdoor environments. You should place the unit under an awning or protective cover to keep rain out of the top vent.

Controls are fully adjustable via knobs. You can set the winter or summer mode. The gas setting ranges from minimum to maximum. The water flow rate is also adjustable from max to min. A digital meter displays the current water temperature. This layout lets you fine-tune performance based on inlet water conditions. The CSA safety approval includes auto-cut off water control and anti-dry combustion protection. These features help prevent damage if the flow stops unexpectedly.

The unit includes a CSA-certified regulator and a five-foot hose for a standard BBQ propane tank. It also comes with an on/off shower head and a 4.5-foot stainless steel hose. The wrapped hose is designed to prevent kinks and punctures. This setup supports quick installation in remote locations. The design prioritizes portability and ease of use for outdoor showers or pet bathing. You get instant hot water without needing complex plumbing.

Setup And Everyday Use Guide

Installation is straightforward for outdoor use. The unit requires a standard BBQ propane tank with a QCC1 Type-1 valve. Flame King includes a CSA-certified regulator and a five-foot hose to connect the gas source. You also get an on-off water control shower head and a 4.5-foot stainless steel hose. This wrapped hose helps prevent kinks and punctures during use. You should install the heater under an awning or protective cover. This step prevents rain from entering through the top vent, which is critical for safe operation.

Daily operation relies on fully adjustable control knobs. You can set the Winter/Summer mode to match ambient temperatures. The MIN/MAX gas setting lets you adjust flame intensity. The MAX/MIN water flow rate knob allows you to control how much water passes through the unit. A digital water temperature meter displays the current output. This setup gives you precise control over water heat without guesswork.

Safety features activate automatically. The system includes auto-cut off water control and automatic ignition. Anti-dry combustion protection shuts the unit down if water flow stops. Over-pressure, overheating, flameout, and anti-frozen protections add layers of safety. These specs mean you do not need to monitor the unit constantly. The steel case provides durability for camping or RV trips. You simply connect the gas, attach the shower head, and adjust the knobs for your desired temperature. The compact design ensures you can carry it easily to any outdoor location.

Before You Buy This Heater

Before you buy, confirm your propane tank has a QCC1 Type-1 valve. This unit includes a regulator and five-foot hose, but you may need additional hoses if your shower head is farther away. The steel case measures 21.5 by 7 by 13 inches and weighs 18 pounds. You must install it under an awning or protective cover to prevent rain from entering the top vent. This outdoor-only design means it is not suitable for indoor garages or enclosed spaces. Check your local codes for outdoor propane appliance placement. Maintenance involves checking the stainless steel hose for kinks or punctures before each use. Ensure the digital temperature meter is clean and readable. Compare this portable option with fixed indoor models if you need year-round, whole-house supply. This unit suits temporary or seasonal needs. Verify your water pressure matches the 2.64 GPM flow rate. If your pressure is too low, the heater may not ignite. Keep the CSA safety certifications in mind for peace of mind.

Check before you buy

  • Confirm your propane tank has a QCC1 Type-1 valve
  • Install the unit under an awning to block rain
  • Check local codes for outdoor propane appliance placement
  • Verify your water pressure supports 2.64 GPM flow
  • Ensure you have space for the 18-pound unit

The product at a glance

Flame King 2.64 GPM Portable Propane Water Heater

Best for: outdoor camping and RV showers

Fuel Type
Propane
Flow Rate
2.64 GPM
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 Affiliate link

This portable tankless water heater runs on propane and delivers 2.64 GPM at 68,000 BTU. It features a compact 18-pound steel case with CSA safety certifications for outdoor use. You get adjustable gas and water controls plus a digital temperature meter. It includes a regulator and hose for standard BBQ tanks. It suits camping, RVs, and outdoor showers where instant hot water is needed without fixed plumbing.

Pros

  • 68,000 BTU output for rapid heating
  • 2.64 GPM flow rate at 10L capacity
  • CSA safety approved with auto-cut off and anti-freeze protection
  • Fully adjustable controls for water flow and gas settings
  • Compact 18-pound steel design for easy transport

Cons

  • Requires outdoor installation under a protective cover
  • No indoor or permanent plumbing compatibility
  • Limited to propane fuel source only

Good fit if

  • You need hot water for camping or RV trips
  • You want a lightweight unit for portable showers
  • You have access to standard propane tanks

Skip if

  • You need an indoor or wall-mounted unit
  • You require electric or natural gas power
  • You need a high-flow shower for multiple fixtures

Verdict: Flame King 10L Propane Portable Water Heater fits outdoor enthusiasts who need reliable hot water on the go. Its portable design and safety features make it ideal for camping and RV use, provided you have outdoor space and propane access.

Specifications side by side

Spec Flame King 2.64 GPM Portable Propane Water Heater
Fuel Type Propane
Flow Rate 2.64 GPM
BTU 68,000 BTU/hr
Installation Location Outdoor
Certification CSA
Dimensions 21.5 x 7 x 13 inches
Use Camping, RV, Cabins
Weight 18 pounds
Size 10L - 2.64 GPM
Color White
Model YSNBM264a

Frequently asked questions

Is the Flame King portable water heater safe for outdoor use?

Yes, it is designed specifically for outdoor installation. The unit includes a CSA-certified regulator and a five-foot hose for safe gas connection. Its steel case provides durable protection for camping or RV use. Always ensure adequate ventilation when operating the device to maintain safety standards.

What propane tank does this unit require?

This heater requires a standard BBQ propane tank equipped with a QCC1 Type-1 valve. The package includes a CSA-certified regulator and a five-foot hose to connect directly to the tank. You do not need to purchase additional gas connectors unless your setup requires extended reach.

How much hot water can this heater produce per minute?

The Flame King model delivers up to 2.64 gallons per minute. This flow rate supports single-station use, such as a shower or sink, while camping. The 68,000 BTU heating output helps maintain consistent temperature, though flow may adjust based on incoming water temperature and pressure.

Can I use this water heater inside my RV?

No, this unit is strictly for outdoor installation. The specifications list the installation location as outdoor only. Using it indoors poses ventilation risks due to propane combustion. You should reserve this portable heater for camping sites, cabins, or exterior RV shower setups.

How heavy is the Flame King portable water heater?

The unit weighs 18 pounds. This weight makes it manageable for one person to carry during transport. The compact dimensions of 21.5 by 7 by 13 inches allow it to fit easily into storage compartments or carry bags for road trips and camping adventures.

Does this heater come with all necessary hoses and regulators?

Yes, the package includes a CSA-certified regulator and a five-foot hose. These components connect the heater to a standard BBQ propane tank. You may need to purchase additional hoses if your shower head or water source is located farther away from the unit.

What is the model number for this Flame King heater?

The model number is YSNBM264a. This identifier corresponds to the 10L portable propane water heater with a 2.64 GPM flow rate. You can use this number to verify specifications or find replacement parts compatible with your specific unit.

See also