APUS RV Tankless Water Heater Review: Who It Fits and Who Should Skip It
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This apus RV tankless water heater review focuses on a propane-powered unit designed for on-demand hot water in recreational vehicles. The APUS 68,000 BTU RV Propane Water Heater delivers up to 3.9 GPM of continuous flow. It replaces standard 6, 10, and 12-gallon tank heaters. The unit runs on 12V DC power and propane. Its compact design fits most standard RV water heater openings. You get reliable performance without waiting for tank recovery. This spec-based look explains who this heater suits.
What stands out
- 68,000 BTU propane burner provides up to 3.9 GPM flow
- Compact 14.96 × 14.96 × 14.18 in size fits standard RV openings
- Intelligent freeze protection activates at 35.6°F to prevent damage
- CSA certified with flame failure and dry-burn protection
- Includes remote control for convenient temperature adjustment inside the RV
Who it fits
Good fit for
This heater suits RV owners who want endless hot water without the weight of a tank. It fits travel trailers, fifth wheels, and motorhomes with standard 12V DC electrical systems. The high BTU output supports long showers and dishwashing. If you camp at elevations up to 9,800 ft, the advanced combustion system maintains stable performance. The included remote control is useful for adjusting temperatures from inside your living space.
Who should skip it
Skip this option if you need electric heating only, as this unit requires propane and 12V DC power. It is not suitable for homes or boats without proper RV-style propane setups. If you prefer a black access door, check the available variations, as the base model shown has a white door. The unit lacks a digital display for precise temperature reading, relying on the remote instead. Those needing higher flow rates than 3.9 GPM should consider larger models.
Verdict: The APUS 68,000 BTU RV Propane Water Heater offers a compact, high-output solution for replacing traditional tank heaters. It is a practical choice for RVers prioritizing continuous hot water and easy installation.
Key specs explained for APUS RV heater
68,000 BTU
This BTU rating indicates the heating power of the propane burner. Higher BTUs allow the unit to raise water temperature quickly, even when incoming water is cold. You get consistent heat during long showers or when multiple fixtures run. Compare this to lower-output units if you need faster recovery times in cold climates or high-demand situations.
3.9 GPM
Gallons per minute measure how much hot water the heater delivers continuously. A 3.9 GPM flow rate supports simultaneous use, such as a shower and kitchen sink. This capacity suits most RV bathrooms. If you have multiple bathrooms, ensure your total demand stays below this limit to maintain consistent temperature and pressure throughout your trip.
12V DC
This voltage requirement means the unit runs on your RV’s standard 12-volt DC electrical system. You do not need a separate inverter or AC power source for ignition and controls. This simplifies installation and ensures the heater works while parked off-grid. Check your RV’s wiring capacity to confirm it can handle the initial startup current draw safely.
Propane
Propane is the fuel type used to generate heat. This makes the unit independent of shore power or generators. It is ideal for camping where electricity is limited. Ensure you have adequate propane tank capacity for extended use. Propane heaters often perform reliably in cold weather compared to electric-only models, providing consistent output in varied conditions.
CSA
CSA certification confirms the heater meets specific safety standards for gas appliances. This label ensures proper ventilation, pressure relief, and flame failure protection are built into the design. It is essential for safe operation in enclosed RV compartments. Look for this mark when shopping to verify the unit has undergone rigorous testing for gas safety and durability.
Design and build overview
The APUS unit measures 14.96 by 14.96 by 14.18 inches. It weighs 24 pounds. The listing notes a 12.6 by 12.6 inch cutout requirement. These dimensions allow it to fit most standard RV water heater compartments. You can replace older 6, 10, or 12-gallon tank models. The compact footprint saves space in tight utility bays. This size suits travel trailers, fifth wheels, and motorhomes where storage is limited.
The exterior features a white door, with black options available in other variations. This finish choice helps the unit blend with different RV exteriors. According to the listing, the unit includes a remote control. This allows you to adjust the temperature from inside the vehicle. You do not need to reach the external panel to change settings. This layout improves convenience during use.
The base construction supports 12V DC power and propane fuel. Standard NPT fittings connect to your existing plumbing. The design prioritizes easy installation into existing spaces. You get a straightforward replacement for traditional tank heaters. The remote adds flexibility for temperature control without leaving your seat. The white finish provides a clean look for standard RV setups.
Setup and everyday use
Setup involves fitting the unit into most standard RV water heater compartments. The compact dimensions allow it to replace older 6, 10, and 12-gallon tank models from brands like Suburban and Atwood. You need a 12.6 by 12.6 inch cutout for the door. The unit uses standard NPT fittings, which simplifies connection to your existing plumbing. It runs on propane and requires 12V DC power for operation. This power draw supports the electronic ignition and control systems. The listing offers white or black access door options to match your RV’s exterior style.
Daily use begins with a water flow of just 0.55 GPM. This low threshold means the heater activates quickly when you open a tap. The 68,000 BTU burner then heats the water on demand. You receive up to 3.9 GPM of continuous hot water. This flow rate supports long showers and dishwashing without waiting for tank recovery. The intelligent staged combustion adjusts heating based on incoming water temperature. This feature helps maintain an outlet temperature between 95 and 124°F. You can adjust settings using the included remote control, allowing convenient temperature management from inside the RV.
The unit includes several safety features for everyday use. These include flame failure protection, gas leak protection, and dry-burn protection. A 203 PSI pressure relief valve adds another layer of safety. The system also provides intelligent freeze protection that activates at 35.6°F. This helps prevent damage when properly powered. The advanced combustion system ensures stable performance at elevations up to 9,800 feet. This makes it suitable for mountain camping or high-altitude travel. CSA certification confirms it meets specific safety standards for RV use.
Check Compatibility Before Buying
Before you buy, verify your RV’s existing water heater compartment dimensions. This unit requires a 12.6 by 12.6 inch cutout. Ensure your propane system supplies adequate pressure for the 68,000 BTU burner. Check that your electrical system provides stable 12V DC power for the control board and ignition. You must also confirm NPT fitting compatibility with your existing plumbing lines. Consider your typical water pressure, as this model starts heating at 0.55 GPM. If your RV uses hard water, plan for regular descaling to maintain the 3.9 GPM flow rate. This propane model suits travelers seeking endless hot water without tank recovery time. It fits well alongside electric or dual-fuel options if you prefer flexibility. However, it lacks the instant on-off control of digital electric units. Keep the remote control accessible for temperature adjustments inside the living space. Regularly inspect the pressure relief valve and flame sensors for safe operation.
Check before you buy
- Verify 12.6 by 12.6 inch cutout fits your compartment.
- Confirm 12V DC power availability for controls.
- Check NPT fitting compatibility with existing plumbing.
- Ensure propane supply meets burner requirements.
The product at a glance
APUS 68,000 BTU RV Propane Water Heater
Best for: RV owners replacing standard tank heaters
- Fuel Type
- Propane
- Flow Rate
- 3.9 GPM
- BTU
- 68,000 BTU
- 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 propane tankless water heater delivers 68,000 BTU of heat and up to 3.9 GPM of hot water. It replaces standard 6 to 12-gallon RV tanks with a compact 14.96-inch square design. The unit operates on 12V DC power and includes a remote control for indoor temperature adjustments. It features intelligent freeze protection and staged combustion for stable performance at elevations up to 9,800 ft. CSA certification ensures safe operation for your RV lifestyle.
Pros
- 68,000 BTU propane burner provides up to 3.9 GPM continuous flow
- Compact 14.96 x 14.96 x 14.18 inch size fits most standard RV openings
- Includes remote control for convenient indoor temperature adjustment
- Intelligent freeze protection activates at 35.6°F to prevent damage
- Staged combustion maintains outlet temperatures between 95–124°F
Cons
- Heavier at 24 pounds compared to many standard tank replacements
- Requires 12V DC power, limiting use without an inverter or battery source
- Maximum elevation rating of 9,800 ft may limit performance at higher altitudes
Good fit if
- You want to replace a bulky 6, 10, or 12-gallon tank in your RV
- You need hot water for long showers or dishwashing with a 3.9 GPM flow rate
- You camp at elevations up to 9,800 ft and want freeze protection
Skip if
- You live in an area with elevations consistently above 9,800 ft
- You prefer a unit that does not require 12V DC electrical power
- You need a water heater with a higher maximum flow rate than 3.9 GPM
Verdict: APUS RV Propane Tankless Water Heater fits RV owners who need a compact, high-output replacement for standard tank heaters and value indoor remote control. It is a solid choice for full-time RV living or frequent camping at moderate elevations.
Specifications side by side
| Spec | APUS 68,000 BTU RV Propane Water Heater |
|---|---|
| Fuel Type | Propane |
| Flow Rate | 3.9 GPM |
| BTU | 68,000 BTU |
| Voltage | 12V DC |
| Certification | CSA |
| Dimensions | 14.96 x 14.96 x 14.18 inches |
| Use | RV |
| Weight | 24 pounds |
| Color | White |
| Model | AP-AWH-RV10W-NEW |
Frequently asked questions
Is the APUS 68,000 BTU RV Propane Water Heater suitable for full-time RV living?
Yes, this unit is a solid choice for full-time RV living or frequent camping at moderate elevations. Its high 68,000 BTU output ensures you get consistent hot water during long showers. The compact design allows it to replace standard tank heaters, saving valuable space in your RV while providing reliable on-demand performance for daily use.
Does this APUS water heater come with a remote control?
Yes, the APUS RV Propane Tankless Water Heater features indoor remote control capabilities. This allows you to adjust settings from inside the living area rather than accessing the unit directly. This convenience is particularly useful for RV owners who value easy access to temperature adjustments without needing to go outside or into tight compartments.
What are the physical dimensions of the APUS RV tankless water heater?
The APUS unit measures 14.2 inches in width, 15 inches in height, and 14.2 inches in length. It weighs 24 pounds. These compact dimensions allow it to fit most standard RV water heater compartments. You will need a 12.6 by 12.6 inch cutout for the door to accommodate the unit properly during installation.
Can the APUS 68,000 BTU heater replace a standard 10-gallon tank?
Yes, this tankless unit is designed to replace standard 6, 10, and 12-gallon tank heaters. It delivers up to 3.9 GPM of continuous flow, providing on-demand hot water without the need for a storage tank. This makes it an excellent upgrade for RV owners looking to save space while maintaining reliable hot water availability.
What fuel type does the APUS RV water heater use?
The APUS 68,000 BTU RV Propane Water Heater runs on propane fuel. This BTU rating indicates the heating power of the propane burner, allowing the unit to raise water temperature quickly even when incoming water is cold. You must ensure your propane system supplies adequate pressure for the 68,000 BTU burner to function correctly.
Is the APUS water heater suitable for high-altitude camping?
The product data specifies that this unit is ideal for moderate elevations. It may not perform optimally at very high altitudes where oxygen levels are lower. You should verify your specific camping elevation against the manufacturer's guidelines. For moderate elevations, the 68,000 BTU output provides consistent heat and reliable performance for your RV needs.
How much electrical power does the APUS heater require?
The unit requires stable 12V DC power for its control system and operation. You need to check that your RV’s electrical system provides this power consistently. The compact design and propane fuel source mean it does not rely on external electricity for heating, but the electronic controls still need a reliable 12V DC connection to function.