APUS or VancEpic? Tankless Water Heaters Compared in 2026
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This APUS vs VancEpic tankless water heater comparison helps you pick the right unit for your hot water needs. Both brands deliver on-demand hot water with intelligent temperature control and multiple safety features. The main difference lies in their fuel source and intended use. APUS uses propane for RVs, while VancEpic uses natural gas for indoor home installation. You need to choose based on your power supply and where you plan to install the unit.
Key differences
| Aspect | APUS 68,000 BTU RV Propane Water Heater | VancEpic 4.8 GPM Natural Gas Tankless Heater |
|---|---|---|
| Fuel Type | Propane | Natural Gas |
| Installation Location | RV | Indoor |
| Flow Rate | 3.9 GPM | 4.8 GPM |
| BTU | 68,000 BTU | 110,000 BTU |
| Voltage | 12V DC | not listed |
| Venting Type | not listed | Non-Condensing |
Which one should you choose?
Choose APUS 68,000 BTU RV Propane Water Heater if
- You need a water heater for an RV or camper.
- You rely on propane fuel sources.
- You require 12V DC power compatibility.
Choose VancEpic 4.8 GPM Natural Gas Tankless Heater if
- You want to install the unit indoors in a home.
- You have access to natural gas.
- You need higher flow rates for multiple outlets.
Verdict: Choose the APUS unit if you are traveling in an RV and need propane-powered hot water. Select the VancEpic model for indoor residential use with natural gas and higher capacity. Your fuel type and installation location are the deciding factors.
APUS vs VancEpic Comparison
fuel type
The APUS unit runs on propane, making it ideal for RVs and off-grid setups where natural gas lines are unavailable. It connects to standard propane systems. The VancEpic heater uses natural gas, which is better suited for permanent indoor installations in homes with existing gas lines. This fundamental difference dictates where you can install each unit. You cannot swap fuel sources without significant modifications. Choose propane for mobility and natural gas for stationary household use.
flow rate
The VancEpic model delivers 4.8 gallons per minute, while the APUS unit provides 3.9 gallons per minute. Higher flow rates support multiple simultaneous outlets, such as a shower and a kitchen sink. The VancEpic capacity makes it easier to maintain pressure when several fixtures are open. The APUS rate is sufficient for single-point RV use, such as a shower or sink, but may struggle if you try to run two outlets at once. The VancEpic has a clear advantage for higher demand.
installation location
The APUS heater is designed specifically for RV compartments, fitting standard openings in travel trailers and motorhomes. Its compact size allows it to replace smaller tank heaters in tight spaces. The VancEpic unit is intended for indoor residential installation. It is larger and requires more vertical space. You must place the VancEpic in a utility room or basement. The APUS is the only choice for mobile living spaces, while the VancEpic serves fixed homes.
temperature control
The VancEpic heater offers precise temperature control, maintaining water temperature within ±1°F of your setting. This stability prevents sudden hot or cold shocks during use. The APUS unit features intelligent staged combustion that adjusts heating based on flow, maintaining an outlet range of 95–124°F. While this provides comfortable water, it does not offer the same precision as the VancEpic. If exact temperature consistency is your priority, the VancEpic specification is superior.
power source
The APUS unit operates on 12V DC power, which allows it to run directly from your RV battery or converter system. This is essential for camping without shore power. The VancEpic heater requires standard household electrical power for its controls and exhaust system. It is not compatible with low-voltage DC systems. If you are powering your hot water from a vehicle electrical system, the APUS is the necessary choice. The VancEpic requires home wiring.
Which tankless heater fits your needs
RV travelers needing propane and portability
The APUS unit runs on propane, making it ideal for RVs and off-grid setups. It delivers 3.9 GPM at 68,000 BTU with a compact 14.96-inch square design. It fits standard RV openings and includes a remote control. This propane model operates on 12V DC power and handles elevations up to 9,800 feet for reliable campsite performance.
Homeowners seeking whole-house natural gas flow
The VancEpic heater uses natural gas and delivers 4.8 GPM at 110,000 BTU. It supports three to five simultaneous outlets for whole-house needs. Its oxygen-free copper heat exchanger ensures efficient heat transfer. The unit maintains temperature within ±1°F and features quiet operation. It is designed for permanent indoor installation with standard 1/2-inch NPT fittings.
Users prioritizing precise temperature stability
The VancEpic model offers intelligent gas and temperature linkage to keep water temperature within ±1°F. This precision prevents sudden fluctuations during use. It includes four preset modes and a child lock. The brushless DC exhaust system and multi-layer sound insulation contribute to stable, quiet performance. This natural gas unit is built for consistent comfort in residential settings.
The products compared
APUS 68,000 BTU RV Propane Water Heater
Best for: RVers needing propane heating with remote control
- 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 3.9 GPM of hot water using 68,000 BTU of propane power. It fits standard RV compartments with a 14.96 x 14.96 x 14.18 inch footprint. You get intelligent freeze protection and stable performance up to 9,800 ft elevation. The 12V DC operation and included remote control make it practical for travel trailers and motorhomes seeking reliable on-demand heating.
Pros
- 68,000 BTU propane burner provides up to 3.9 GPM flow
- Compact 14.96 x 14.96 x 14.18 inch design fits standard openings
- Includes remote control for indoor temperature adjustment
- Stable operation at elevations up to 9,800 ft
Cons
- Lower flow rate of 3.9 GPM compared to 4.8 GPM competitors
- Limited to propane fuel type only
- Requires 12V DC power connection
Good fit if
- You need a direct replacement for standard 6, 10, or 12-gallon RV tanks
- You camp at high elevations up to 9,800 ft
- You want indoor remote control for temperature settings
Skip if
- You require natural gas compatibility
- You need a flow rate above 4.0 GPM
- You are installing in a fixed home rather than an RV
Verdict: APUS 68,000 BTU Propane RV Water Heater is a compact, altitude-ready solution for RVers who prioritize propane efficiency and remote convenience over maximum flow speed.
VancEpic 4.8 GPM Natural Gas Tankless Heater
Best for: Whole-house indoor natural gas hot water
- Fuel Type
- Natural Gas
- Flow Rate
- 4.8 GPM
- BTU
- 110,000 BTU
- Installation Location
- Indoor
- Temperature Control
- ±1°F
- Dimensions
- 24.6 x 14.4 x 14.4 in
View on Amazon: VancEpic 4.8 GPM Natural Gas Tankless Heater Affiliate link
This VancEpic unit delivers 4.8 GPM of hot water at 110,000 BTU using natural gas. It features precise temperature control within ±1°F and an oxygen-free copper heat exchanger for efficient heating. Designed for indoor installation, it supports three to five water outlets simultaneously. The compact 24.6-inch height fits standard spaces while providing stable performance for family use.
Pros
- 4.8 GPM flow rate supports multiple outlets
- ±1°F precise temperature control
- Oxygen-free copper heat exchanger
- Quiet operation with sound insulation
Cons
- Indoor installation only
- Non-condensing venting type
- 2-year warranty coverage
Good fit if
- You need high flow for whole-house use
- You want stable temperature control
- You have indoor gas access
Skip if
- You require outdoor installation
- You need condensing efficiency
- You prefer propane fuel
Verdict: VancEpic 110,000 BTU Natural Gas Heater suits families needing reliable, high-volume hot water indoors. It balances power and precision for daily tasks.
Specifications side by side
| Spec | APUS 68,000 BTU RV Propane Water Heater | VancEpic 4.8 GPM Natural Gas Tankless Heater |
|---|---|---|
| Fuel Type | Propane | Natural Gas |
| Flow Rate | 3.9 GPM | 4.8 GPM |
| BTU | 68,000 BTU | 110,000 BTU |
| Installation Location | not stated | Indoor |
| Voltage | 12V DC | not stated |
| Temperature Control | not stated | ±1°F |
| Certification | CSA | not stated |
| Dimensions | 14.96 x 14.96 x 14.18 inches | 24.6 x 14.4 x 14.4 in |
| Use | RV | not stated |
| Venting Type | not stated | Non-Condensing |
| Weight | 24 pounds | 25.4 pounds |
| Color | White | Non-Condensing |
| Model | AP-AWH-RV10W-NEW | VH11K-W-NG-U01 |
| Size | not stated | 4.8GPM, 110,000BTU, NG |
Frequently asked questions
Can I install the VancEpic heater outdoors?
No, the VancEpic unit is designed for indoor installation only. Its specifications list the installation location as indoor, which is typical for non-condensing natural gas models. Outdoor use would expose the components to weather damage and void safety standards. You should keep this unit inside your home.
Is the APUS water heater heavy to carry?
The APUS unit weighs 24 pounds, making it relatively light for an RV appliance. Its compact dimensions of 14.2 by 15 inches allow for easy handling during installation or transport. This weight helps RVers manage the unit without needing heavy-duty lifting equipment or multiple helpers.
Does the VancEpic model require special venting?
The VancEpic heater uses a non-condensing venting type. This means it follows standard venting practices for natural gas appliances rather than requiring complex condensing systems. You will need to ensure your home has proper exhaust pathways for non-condensing units to safely release combustion gases.
What fuel does the APUS RV heater use?
The APUS heater runs on propane fuel. It is rated at 68,000 BTU, providing efficient heating for recreational vehicles. This makes it suitable for campers who rely on propane tanks for power, especially in areas where natural gas lines are not available.
How large is the VancEpic tankless heater?
The VancEpic model measures 14.4 inches wide, 24.6 inches high, and 14.4 inches deep. It weighs 25.4 pounds. These dimensions help you determine if it fits your designated indoor space. The vertical height is taller than many compact units, so measure your installation area carefully.
Is the APUS unit suitable for high altitudes?
Yes, the APUS heater is described as an altitude-ready solution. This feature ensures consistent performance in RVs traveling to higher elevations where air pressure is lower. You do not need to adjust the settings manually for altitude changes, which simplifies usage for travelers.