APUS vs NOVIEEX Tankless Water Heaters: Which Brand Fits You?
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The APUS vs NOVIEEX tankless water heater comparison highlights two distinct approaches to on-demand hot water. Both brands deliver instant heating without storage tanks, saving space and energy. The main difference lies in their fuel source and intended environment. APUS uses propane for RVs, while NOVIEEX uses natural gas for indoor home use. You need to choose based on your power source and installation location.
Key differences
| Aspect | APUS 68,000 BTU RV Propane Water Heater | Novieex 4.3 GPM Indoor Natural Gas Water Heater |
|---|---|---|
| Fuel Type | Propane | Natural Gas |
| Installation Location | RV | Indoor |
| Voltage | 12V DC | 110V-120V AC |
| Flow Rate | 3.9 GPM | 4.3 GPM |
| Dimensions | 14.96 x 14.96 x 14.18 in | 28.5 x 17.3 x 10.8 in |
| Certification | CSA | not listed |
Which one should you choose?
Choose APUS 68,000 BTU RV Propane Water Heater if
- You need hot water for an RV or camper using propane.
- You require a compact unit that fits standard RV openings.
- You need 12V DC power compatibility for mobile living.
Choose Novieex 4.3 GPM Indoor Natural Gas Water Heater if
- You want a permanent indoor installation in a home.
- You have access to a natural gas line for fuel.
- You prefer a higher flow rate for simultaneous use.
Verdict: APUS is the practical choice for RVers who need propane-powered, compact heating. NOVIEEX suits homeowners seeking a high-flow natural gas unit for indoor use. Select the brand that matches your fuel source and installation space.
APUS vs NOVIEEX Comparison Rounds
fuel type
The APUS RV Tankless Water Heater runs on propane, making it ideal for mobile living or off-grid setups where natural gas lines are unavailable. This allows you to connect it to standard RV propane tanks. In contrast, the NOVIEEX unit requires a natural gas connection. This limits its use to fixed indoor locations with existing gas infrastructure. You must choose based on your power source. Propane offers mobility for campers, while natural gas provides a continuous supply for home installations. Your fuel availability dictates which heater fits your setup.
flow rate
Flow rate determines how many fixtures can run simultaneously without temperature drops. The APUS model delivers up to 3.9 gallons per minute. This is sufficient for a single shower or sink in an RV context. The NOVIEEX unit offers a higher capacity of 4.3 gallons per minute. This allows you to comfortably run a shower, kitchen faucet, and bathroom sink at the same time in a home setting. The higher GPM of the NOVIEEX model supports greater household demand. If you need simultaneous multi-fixture use, the NOVIEEX provides more volume.
voltage
Power requirements differ significantly between these two units. The APUS heater operates on 12V DC power. This compatibility allows it to run directly from your RV’s battery system or standard 12V electrical setup. It is designed for low-voltage mobile environments. The NOVIEEX water heater requires 110V-120V AC power at 60Hz. This standard household voltage is necessary for its digital thermostat and control board. You cannot use the NOVIEEX in an RV without an inverter. The APUS is the only choice for direct 12V DC integration.
installation location
Location constraints are critical for tankless heaters. The APUS unit is designed for RV water heater compartments. It fits standard openings like those from Suburban or Atwood, measuring approximately 14.96 by 14.96 inches. It is built for mobile, compact spaces. The NOVIEEX is strictly for indoor installation. It is wall-mounted and requires professional installation using 1/2-inch NPT fittings. It is not designed for outdoor exposure or mobile RV use. You must have an indoor utility space, closet, or basement to install the NOVIEEX safely.
temperature control
Precision in water temperature affects comfort and safety. The NOVIEEX features a built-in digital thermostat with a wide adjustable range from 95°F to 149°F. It offers ±1°F temperature control accuracy, ensuring consistent output for showers and household tasks. The APUS uses intelligent staged combustion to maintain an outlet temperature between 95°F and 124°F. While it adjusts heating based on flow, the NOVIEEX provides a broader maximum temperature range and precise digital control. If you need higher maximum temperatures, the NOVIEEX has the advantage.
altitude performance
Altitude affects combustion efficiency in gas heaters. The APUS unit is engineered for high-elevation use, providing stable hot water at elevations up to 9,800 feet. This makes it suitable for mountain campsites and high-altitude travel. The NOVIEEX is recommended for use only below 2,000 feet altitude. It does not include the same altitude compensation features for high elevations. If you frequently camp or live in mountainous regions, the APUS is the only viable option. The NOVIEEX may underperform significantly at higher elevations.
Which Tankless Water Heater Fits You
RV owners needing propane power
The APUS unit runs on propane, making it ideal for RVs and off-grid setups where natural gas lines are unavailable. It delivers 3.9 GPM at 68,000 BTU, fitting standard compartments. Its 12V DC power and remote control ensure convenient operation while traveling.
Homeowners with natural gas access
The Novieex model uses natural gas, offering 100,000 BTU and up to 4.3 GPM for household use. It features precise temperature control within 1 degree Fahrenheit and an LED touchscreen. This indoor unit saves space and supports simultaneous shower and sink use efficiently.
Users wanting precise digital control
The Novieex heater includes an LED touchscreen interface for easy operation. It maintains water temperature within ±1°F, ensuring consistent comfort. The wide adjustable range from 95°F to 149°F allows you to set exact preferences for showers or household tasks safely.
Campers needing altitude stability
The APUS water heater performs reliably at elevations up to 9,800 feet. It includes intelligent freeze protection and staged combustion for stable heating. This makes it a robust choice for mountain camping or cold-weather travel where other units might struggle with performance.
The products compared
APUS 68,000 BTU RV Propane Water Heater
Best for: RVers needing propane hot water
- 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 unit delivers 68,000 BTU of propane heat for RVs, providing up to 3.9 GPM of hot water. It fits standard 12.6 x 12.6 inch openings and includes a remote control for temperature adjustments. The design supports operation up to 9,800 feet and includes intelligent freeze protection. It replaces common 6 to 12-gallon tank heaters in travel trailers and motorhomes.
Pros
- 68,000 BTU propane burner
- 3.9 GPM flow rate
- Includes remote control
- Fits standard RV openings
Cons
- Heavier at 24 pounds
- Limited to RV use
- No smart home integration
Good fit if
- You need a direct replacement for a standard RV water heater
- You want on-demand hot water for camping
- You prefer using a remote control
Skip if
- You require a residential whole-house heater
- You need electric power only
- You want a lighter unit
Verdict: APUS RV Tankless Water Heater 68K BTU fits RVers who need a reliable propane replacement for standard tank heaters. It offers solid flow and remote convenience for camping trips.
Novieex 4.3 GPM Indoor Natural Gas Water Heater
Best for: Indoor homes needing high-flow natural gas heating
- Fuel Type
- Natural Gas
- Flow Rate
- Up to 4.3 GPM
- BTU
- 100,000 BTU
- Installation Location
- Indoor
- Voltage
- 110V-120V
- Temperature Control
- 95°F to 149°F, ±1°F
View on Amazon: Novieex 4.3 GPM Indoor Natural Gas Water Heater Affiliate link
This NOVIEEX indoor unit delivers up to 4.3 GPM of hot water using 100,000 BTU of natural gas power. It features precise temperature control with a ±1°F accuracy, allowing you to maintain consistent heat from 95°F to 149°F. The compact, wall-mounted design saves space in utility rooms or closets. It requires professional installation and is recommended for altitudes below 2000 feet.
Pros
- 100,000 BTU heating power for simultaneous use
- Precise ±1°F digital thermostat control
- Wall-mounted design saves over 50% space
- LED touchscreen interface for easy operation
Cons
- Limited to indoor installation only
- Requires professional installation by a licensed technician
- Not recommended for altitudes above 2000 feet
Good fit if
- You need high-flow hot water for multiple fixtures
- You have an indoor location with natural gas access
- You want precise temperature settings for comfort
Skip if
- You live at an altitude above 2000 feet
- You require an outdoor-rated unit
- You prefer a DIY installation without a licensed technician
Verdict: NOVIEEX 100,000 BTU Natural Gas Heater is a strong choice for homes needing reliable, high-volume hot water in indoor settings. It suits you if you prioritize precise temperature stability and space-saving wall mounting.
Specifications side by side
| Spec | APUS 68,000 BTU RV Propane Water Heater | Novieex 4.3 GPM Indoor Natural Gas Water Heater |
|---|---|---|
| Fuel Type | Propane | Natural Gas |
| Flow Rate | 3.9 GPM | Up to 4.3 GPM |
| BTU | 68,000 BTU | 100,000 BTU |
| Installation Location | not stated | Indoor |
| Voltage | 12V DC | 110V-120V |
| Temperature Control | not stated | 95°F to 149°F, ±1°F |
| Certification | CSA | not stated |
| Dimensions | 14.96 x 14.96 x 14.18 inches | 10.8 x 17.3 x 28.5 inches |
| Use | RV | not stated |
| Weight | 24 pounds | 19.8 pounds |
| Color | White | Pearl Grey |
| Model | AP-AWH-RV10W-NEW | RS-16 |
| Size | not stated | 4.3GPM Nature gas |
Frequently asked questions
Can I install the NOVIEEX heater in my garage?
Yes, the NOVIEEX model is designed for indoor installation. Its specifications list the installation location as indoor, making it suitable for garages, utility rooms, or basements. It runs on natural gas and features wall mounting to save floor space. You must ensure proper ventilation and gas line connections for safe operation in these enclosed areas.
Does the APUS unit work with standard RV propane tanks?
Yes, the APUS water heater runs on propane. It is built for RV use, allowing you to connect it to standard RV propane tanks. This fuel type is ideal for mobile living or off-grid setups where natural gas lines are not available. It serves as a reliable replacement for standard tank heaters in travel trailers.
Which heater provides more hot water flow?
The NOVIEEX unit provides a higher flow rate of 4.3 GPM. This makes it better for homes needing simultaneous hot water for multiple fixtures. The APUS model is optimized for RVs and typically delivers lower flow rates suitable for compact spaces. If you need high-volume heating for a house, the NOVIEEX natural gas model is the stronger choice.
How much space does each unit take up?
Both units are compact and wall-mounted. The NOVIEEX measures 28.5 inches in length, 17.3 inches in width, and 10.8 inches in height. The APUS model is more square, measuring 14.2 inches by 14.2 inches with a height of 15 inches. The APUS weighs 24 pounds, while the NOVIEEX weighs 19.8 pounds. Both save significant space compared to tank heaters.
Is the NOVIEEX heater suitable for outdoor use?
No, the NOVIEEX 4.3 GPM model is rated for indoor installation only. It is not designed for outdoor exposure to weather elements. If you need an outdoor or RV-ready unit, the APUS propane heater is the correct option. It is built to withstand the conditions associated with mobile living and recreational vehicle use.
What fuel type does each brand use?
The APUS heater uses propane fuel. This is ideal for RVs and locations without natural gas infrastructure. The NOVIEEX heater uses natural gas. It requires a connection to a natural gas line, making it suitable for permanent indoor installations in homes. You cannot swap fuel types between these two specific models.