68,000 BTU or 150,000 BTU Tankless Water Heaters? Compared by Specs
As an Amazon Associate we earn from qualifying purchases. Links on this page are affiliate links.
You are comparing a 68000 btu vs 150000 btu tankless water heater. Both units provide endless hot water and carry CSA certification for safety. They share compact designs suitable for wall mounting. The main difference lies in their power source and intended use. One model runs on propane for recreational vehicles. The other uses natural gas for whole-house residential supply. Your choice depends on whether you need mobile RV utility or fixed home capacity.
Key differences
| Aspect | APUS 68,000 BTU RV Propane Water Heater | GASLAND Gasmart E Indoor Natural Gas Tankless Heater |
|---|---|---|
| Fuel Type | Propane | Natural Gas |
| Use | RV | Whole House |
| Installation Location | RV Compartment | Indoor |
| Flow Rate | 3.9 GPM | 5.8 GPM |
| Voltage | 12V DC | not listed |
Which one should you choose?
Choose APUS 68,000 BTU RV Propane Water Heater if
- You need a heater for an RV or travel trailer
- You require 12V DC power compatibility
- You want a unit that fits standard RV water heater openings
Choose GASLAND Gasmart E Indoor Natural Gas Tankless Heater if
- You need hot water for multiple fixtures in a home
- You have a natural gas supply line
- You want higher flow capacity for showers and laundry
Verdict: Choose the APUS model if you are equipping an RV with propane. Select the GASLAND unit if you are installing a natural gas system for a whole house. The specs align each product with its specific environment.
68k vs 150k BTU Heater Specs
fuel type
Product A uses propane, while Product B runs on natural gas. Propane is stored in tanks, making it ideal for RVs or off-grid locations where natural gas lines are unavailable. You can carry extra propane bottles for extended trips. Natural gas is piped directly into your home, providing a continuous supply without refilling tanks. This makes Product B better for permanent residential installations. Choose propane if you travel or lack gas infrastructure. Choose natural gas if you have a fixed home connection.
intended use
Product A is designed specifically for RVs. Its compact size fits standard RV water heater compartments, replacing bulky tank heaters in travel trailers and motorhomes. Product B is built for whole-house indoor use. It is larger and intended for permanent installation in homes, such as in closets or basements. If you need hot water for camping or mobile living, Product A is the correct choice. If you need to supply hot water to multiple fixtures in a residence, Product B is the appropriate solution.
flow rate
Product A delivers up to 3.9 gallons per minute. This capacity is sufficient for a single shower or sink in an RV setting. Product B offers up to 5.8 gallons per minute. This higher flow rate supports multiple simultaneous uses, such as running a shower and a kitchen faucet at the same time in a home. The 150,000 BTU burner allows for this increased volume. If you need higher water volume for a family home, Product B has the advantage. For single-user RV scenarios, Product A is adequate.
voltage
Product A operates on 12V DC power. This allows it to run directly from your RV’s battery system or vehicle electrical setup. This is crucial for mobile applications where standard household electricity is not available. Product B requires standard household electrical power for its controls and safety systems, though the data does not specify the exact voltage. It is not designed for low-voltage DC systems. If you are installing in a vehicle or off-grid setup with only 12V power, Product A is the only viable option.
dimensions
Product A measures approximately 14.96 by 14.96 by 14.18 inches. It is square and compact, designed to fit into tight RV compartments with a 12.6 by 12.6 inch cutout. Product B is taller and narrower, measuring 14.3 by 24.7 by 14.3 inches. Its vertical profile requires more wall space height but less width than a traditional tank. The smaller footprint of Product A makes it easier to install in constrained RV spaces. Product B is better suited for open areas in homes where height is not a constraint.
Choose the Right Heater for You
RV travelers needing compact propane heat
You need a portable solution for camping or full-time RV living. This 68,000 BTU propane unit fits standard RV compartments with a 14.96-inch square footprint. It delivers 3.9 GPM of hot water and operates on 12V DC power. The included remote control lets you adjust temperatures easily inside your vehicle while you travel.
Homeowners seeking whole-house natural gas heat
You require high-capacity hot water for multiple fixtures in a house. This 150,000 BTU natural gas heater provides up to 5.8 GPM, supporting showers and laundry simultaneously. Its 24.7-inch height allows wall mounting in closets or basements. The unit is CSA certified and designed for indoor installation with continuous on-demand performance for the entire home.
Off-grid users without natural gas lines
You lack access to municipal gas lines and need a reliable backup. This propane model runs independently using stored fuel tanks. It includes intelligent freeze protection that activates at 35.6°F to prevent damage during cold nights. The compact 24-pound design is easy to move, and the 203 PSI pressure relief valve ensures safe operation in remote locations.
Quick picks
| # | Product | Best for | Price |
|---|---|---|---|
| 1 | APUS 68,000 BTU RV Propane Water Heater | RVers replacing standard tank water heaters | Check price of APUS 68,000 BTU RV Propane Water Heater on Amazon |
| 2 | GASLAND Gasmart E Indoor Natural Gas Tankless Heater | Whole house natural gas heating | Check price of GASLAND Gasmart E Indoor Natural Gas Tankless Heater on Amazon |
The products compared
APUS 68,000 BTU RV Propane Water Heater
Best for: RVers replacing standard tank water heaters
- BTU
- 68,000 BTU (what this guide is about)
- Fuel Type
- Propane
- Flow Rate
- 3.9 GPM
- Voltage
- 12V DC
- Certification
- CSA
- Dimensions
- 14.96 x 14.96 x 14.18 inches
View on Amazon: APUS 68,000 BTU RV Propane Water Heater Affiliate link
This APUS unit delivers 68,000 BTU of heating power for propane-powered RVs. It provides up to 3.9 GPM of hot water, replacing standard 6 to 12-gallon tank heaters. The compact 14.96-inch square design fits most standard RV compartments. It operates on 12V DC power and includes a remote control for temperature adjustments. This model suits travelers seeking on-demand hot water without the weight of a traditional tank.
Pros
- Generates up to 3.9 GPM of continuous hot water
- Compact 14.96 x 14.96 x 14.18-inch footprint fits standard RV openings
- Includes remote control for convenient indoor temperature adjustment
- Stable performance at elevations up to 9,800 ft
- CSA certified with multiple safety protections
Cons
- Lower 68,000 BTU output compared to higher-capacity 150,000 BTU models
- Requires 12V DC electrical connection for operation
- Limited to propane fuel type only
Good fit if
- You need a direct replacement for a standard 6, 10, or 12-gallon RV water heater
- You want to retain hot water capacity in a compact space
- You prefer remote temperature control inside your vehicle
Skip if
- You require natural gas compatibility
- You need higher flow rates for multiple simultaneous showers
- You are installing a whole-house residential unit
Verdict: APUS 68,000 BTU Propane RV Water Heater is a compact, spec-driven solution for RVers who need reliable hot water in a standard compartment. It fits buyers prioritizing easy installation and remote control over maximum heating power.
GASLAND Gasmart E Indoor Natural Gas Tankless Heater
Best for: Whole house natural gas heating
- BTU
- 150,000 BTU (what this guide is about)
- Fuel Type
- Natural Gas
- Installation Location
- Indoor
- Use
- Whole House
- Dimensions
- 14.3 × 14.3 × 24.7 inches
- Weight
- 33.1 pounds
View on Amazon: GASLAND Gasmart E Indoor Natural Gas Tankless Heater Affiliate link
This GASLAND unit delivers up to 5.8 gallons per minute using 150,000 BTUs of natural gas power. It is CSA certified for indoor whole-house use. The compact design measures 14.3 by 24.7 inches and weighs 33.1 pounds. It offers a high efficiency rating of 0.8 UEF. This model suits homes needing strong hot water flow for multiple fixtures.
Pros
- 150,000 BTU output for high flow
- 5.8 GPM capacity for whole house
- CSA certified for safety
- Compact wall-mounted design
Cons
- Indoor installation only
- Requires natural gas connection
- Heavier than portable propane models
Good fit if
- You need whole-house hot water
- You have a natural gas line
- You want a high BTU output
Skip if
- You need outdoor installation
- You use propane fuel only
- You require portable use
Verdict: GASLAND 150k BTU Natural Gas Heater fits homes needing high flow rates for multiple bathrooms. It is a solid choice for permanent indoor natural gas setups.
Specifications side by side
| Spec | APUS 68,000 BTU RV Propane Water Heater | GASLAND Gasmart E Indoor Natural Gas Tankless Heater |
|---|---|---|
| Fuel Type | Propane | not stated |
| Flow Rate | 3.9 GPM | not stated |
| BTU | 68,000 BTU | not stated |
| Voltage | 12V DC | not stated |
| Certification | CSA | not stated |
| Dimensions | 14.96 x 14.96 x 14.18 inches | not stated |
| Installation Location | not stated | Indoor |
| Use | RV | Whole House |
| Weight | 24 pounds | 33.1 pounds |
| Color | White | Black |
| Model | AP-AWH-RV10W-NEW | CE528NG |
| Size | not stated | Small |
Frequently asked questions
Can a 68,000 BTU tankless heater replace a traditional tank in an RV?
Yes, it can. The APUS 68,000 BTU model is designed specifically for RVers replacing standard tank water heaters. Its compact dimensions of 14.2 by 15 inches allow it to fit into standard RV compartments. This makes installation straightforward for mobile living situations.
Is 150,000 BTU enough for a whole house natural gas setup?
It is suitable for whole house needs. The GASLAND 150,000 BTU unit is built for permanent indoor natural gas installations. It provides high flow rates capable of supporting multiple bathrooms simultaneously. This makes it a solid choice for residential homes requiring consistent hot water.
What fuel type does the smaller 68,000 BTU unit use?
It uses propane. The APUS model listed for RVs runs on propane fuel. This allows for portability and use in locations without natural gas lines. You can utilize standard propane tanks to power the heater, which is ideal for camping or off-grid RVing.
Does the 150,000 BTU heater require indoor installation?
Yes, it is designed for indoor use. The GASLAND unit is rated for indoor installation only. This is typical for high-output natural gas models that require proper venting and air supply within a home. You should install it in a well-ventilated area according to local codes.
How much space does the 68,000 BTU RV heater take up?
It occupies a small footprint. The APUS unit measures 14.2 inches in width and length, with a height of 15 inches. Weighing only 24 pounds, it is lightweight and easy to mount. This compact size ensures it fits easily into tight RV storage spaces.
Which heater is heavier, the propane or natural gas model?
The natural gas model is heavier. The GASLAND 150,000 BTU heater weighs 33.1 pounds. In comparison, the APUS 68,000 BTU propane unit weighs 24 pounds. The difference in weight reflects the internal components needed for higher output and different fuel delivery systems.