Best VEVOR Propane Tankless & RV Water Heaters
Part of our Ventilation & Hot Water guides.
Propane tankless heaters are the go-to for cabins and RVs without big electrical service. VEVOR sells indoor and outdoor whole-house units and RV units that fit standard 15x15-inch RV openings.
Quick picks
| Best for | Product | List price* | |
|---|---|---|---|
| Best RV retrofit | VEVOR RV Tankless Water Heater 42,000 BTU with 15x15 Door & Remote | $219.90 | Check price |
| Best RV for showers | VEVOR RV Tankless Water Heater 65,000 BTU | $259.90 | Check price |
| Best for cabins (outdoor) | VEVOR Propane Tankless Water Heater 5.3 Gal/min, 120,000 BTU (Outdoor) | $349.90 | Check price |
| Best indoor unit | VEVOR Propane Tankless Water Heater 4.3 Gal/min, 100,000 BTU (Indoor) | $169.90 | Check price |
1. VEVOR RV Tankless Water Heater 42,000 BTU with 15x15 Door & Remote
- 42k BTU propane
- 15 x 15 in door
- Remote control
- RV retrofit size
42,000 BTU with a 15x15 door and remote; replaces many standard RV tank heaters.
- Fits common RV openings
- Remote control
- Lower flow than 65k
2. VEVOR RV Tankless Water Heater 65,000 BTU
- 65k BTU
- Higher flow for showers
- Remote
- White door
65,000 BTU for stronger shower flow.
- More output
- Uses more propane
3. VEVOR Propane Tankless Water Heater 5.3 Gal/min, 120,000 BTU (Outdoor)
- 120k BTU
- Outdoor install
- 3/4 in NPT
- Smart temp control
120,000 BTU outdoor unit avoids indoor venting.
- No indoor flue
- Whole-house output
- Freeze protection needed in winter
4. VEVOR Propane Tankless Water Heater 4.3 Gal/min, 100,000 BTU (Indoor)
- 100k BTU
- Indoor, needs venting
- LED display
- Whole-house class
100,000 BTU indoor model with LED display.
- Low price for whole-house class
- Must be vented correctly
Venting and safety
Indoor propane heaters must be vented to the outdoors exactly as the manual specifies, and every home with a gas appliance needs a CO detector. Installation by a licensed gas fitter is strongly recommended.
BTU and flow explained
Propane tankless output is rated in BTU per hour. More BTU means more gallons per minute at a given temperature rise. As a rough guide, 40,000-65,000 BTU suits one RV shower; 100,000-120,000 BTU suits a small home with two fixtures at once.
RV installation notes
- Measure the exterior opening and wall thickness.
- Check gas line and water line positions.
- Seal the door frame against water.
- Test for gas leaks with soapy water.
Winterizing
Tankless units contain water in their heat exchangers. Drain them per the manual or use bypass valves before freezing weather.
Safety
Install CO and propane detectors in RVs and cabins. Never use outdoor-only units indoors or in enclosed spaces.
Frequently asked questions
Can you use a propane tankless water heater in cold weather?
Yes, but outdoor units must be drained or protected from freezing when not in use.
What BTU tankless heater do I need?
Roughly: 40-65k BTU for an RV or one shower, 100k+ for a small home with two fixtures at once.