Best RV Tankless Water Heater Propane for on-Demand Hot Water

Answer: For RV travelers seeking reliable propane-powered on-demand hot water, these five models deliver continuous hot water with high-altitude performance and simple remote control. Each option serves a slightly different use case, from high-altitude camping to energy-conscious off-grid travel. This guide highlights who each product is best for, why it’s a strong pick, and a practical caveat to consider before buying.

Product Best For Key Benefit
RVPart Pro RV Tankless Water Heater High-energy RVs needing robust 60,000 BTU output Built-in microcomputer with fault code display
ORBEK RV Tankless Water Heater RV travelers at varied elevations High-altitude suitability with 60,000 BTU burner
Somokg RV Tankless Water Heater 12V Budget-friendly, off-grid camping 3.9 GPM; strong ignition at altitude
APUS RV Tankless Water Heater Long showers and continuous hot water 68,000 BTU; 3.9 GPM; remote control
FOGATTI InstaShower 8 Plus Flexible door openings and high-altitude use Three door sizes; staged combustion

RVPart Pro RV Tankless Water Heater


RVPart Pro RV Tankless Water Heater image

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Features include 60,000 BTU of heat output per minute and on-demand heating. The burner activates only when hot water is requested, conserving energy. It utilizes an oxygen-free copper heat exchanger and a brushless DC fan for efficiency and high-altitude operation up to 5000+ ft. A built-in microcomputer panel allows temperature adjustment from 95°F to 123°F and displays fault codes for troubleshooting. The unit includes a 150 PSI pressure reducing valve for simpler installation.

Best for: RV owners who want strong performance in mountain or remote travel with easy troubleshooting via fault codes. Its 60,000 BTU output suits larger RVs or higher flow needs. Caution: Ensure proper venting and cold-water supply for optimal performance; data notes indicate high altitude capability but verify compatibility with your install space.

ORBEK RV Tankless Water Heater


ORBEK RV Tankless Water Heater image

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Features a 60,000 BTU propane burner with continuous on-demand hot water. It’s designed for high-altitude adaptability with oxygen-free copper heat exchangers and a brushless DC fan. The unit accommodates standard RV openings (15″ × 15″, 15″ × 18″, and 18″ × 18″). A remote temperature control simplifies adjustments during showers or dishwashing. Staged combustion helps maintain steady temperatures while conserving propane resources.

Best for: RV travelers who want flexible door panel options and easy replacement in standard RV openings. Caution: Verify your RV cutout size before purchase to avoid retrofit issues; some installations may require additional hardware.

Somokg RV Tankless Water Heater 12V


Somokg RV Tankless Water Heater image

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This model delivers up to 3.9 GPM with 65,000 BTU propane heating. It heats water in about 3 seconds with precise ±1°F control, enabling continuous showers. The copper heat exchanger is designed to resist leaks and withstand freezing temperatures. It features smart ignition and propane-saving capabilities, automatically adjusting flame with faucet use and seasonal temperature changes.

Best for: Campers seeking quick, reliable hot water and strong propane efficiency. Caution: The unit’s maximum GPM may vary with water temperature and supply pressure; verify your water source and altitude conditions before purchase.

APUS RV Tankless Water Heater


APUS RV Tankless Water Heater image

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Powered by 68,000 BTU and delivering up to 3.9 GPM, this model supports long showers and continuous hot water. It is compatible with 12V DC power and propane, and includes remote control for temperature adjustments. The system is designed for high-altitude operation and features CSA certification for safety. Openings fit standard RV compartments, making retrofits straightforward for many coach layouts.

Best for: RVs prioritizing long, uninterrupted showers and remote operation. Caution: High BTU output requires adequate propane supply and proper venting for safe operation.

FOGATTI InstaShower 8 Plus


FOGATTI InstaShower 8 Plus image

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InstaShower 8 Plus offers a high-altitude ready unit with three door size options (15″x15″, 15″x18″, 18″x18″) to fit different RV openings. It uses staged combustion and a 9,800 ft altitude capability mode to prevent overheating and save propane during travel. The system emphasizes retrofit flexibility and can replace several older tankless or tank-type heaters with corresponding door dimensions.

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Best for: RV owners needing retrofit flexibility and multiple door size options. Caution: Door size compatibility is essential; incorrect door choice may require additional modifications.

Buying Guide

What should you check before buying a propane RV tankless heater?

  • Hot water demand: Estimate GPM needs based on you and any travel companions. Higher GPM models suit longer showers or multiple uses in succession.
  • Elevation handling: If you travel to high altitudes, confirm high-altitude performance and staged combustion features.
  • Power and fuel: Confirm 12V DC compatibility and propane availability in your RV setup. Consider units with automatic ignition and flame adjustment for efficiency.
  • Installation fit: Check cutout sizes and door panels to ensure a clean retrofit with standard RV openings.
  • Controls and diagnostics: A built-in temperature control range and fault-code display help quick troubleshooting.

Frequently Asked Questions

  1. Q: Do propane tankless water heaters require electricity?
  2. A: Most operate with 12V DC systems for ignition and control; some rely on battery power or RV electrical supply for the control panel.
  3. Q: How much hot water can I expect at high elevations?
  4. A: High-altitude models use staged combustion and oxygen-free copper heat exchangers; performance varies with water flow and inlet temperature.
  5. Q: Is CSA certification important?
  6. A: CSA certification indicates compliance with safety standards for propane systems and electrical components.
  7. Q: Can I replace an existing tank heater with a tankless model?
  8. A: Yes, provided the door opening, cutout, and plumbing/connectors match the new unit’s specifications.

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