When RV life demands reliable hot water, an on-demand propane RV water heater is the best solution. This guide compares five top options to help you pick the right unit for frequent travelers, families, and campers. Each product is evaluated for reliability, efficiency, installation flexibility, and high-altitude performance. The top picks are suited for different RV sizes and travel needs, from tight retrofits to full-time travelers seeking steady hot water without frequent refills.
| Product | BTU | GPM | Door Size | Best For |
|---|---|---|---|---|
| APUS Black Door 68,000 BTU | 68,000 | 3.9 | 12.6″ x 12.6″ | RV families needing fast, on-demand hot water |
| ORBEK Tankless 60,000 BTU | 60,000 | — | 15″ x 15″ | Easy replacement and high-altitude use |
| VEVOR 42,000 BTU | 42,000 | — | Door not specified | All-season, energy-conscious RVs |
| Fogatti InstaShower 55,000 BTU | 55,000 | — | 15″ x 15″ / 15″ x 18″ / 18″ x 18″ | High-altitude capable, retrofit flexibility |
| Feqivolt 65,000 BTU | 65,000 | — | Door 15″ x 15″ (front/ rear outlets) | Dual outlets for simultaneous hot water in RV |
APUS Black Door 68,000 BTU Propane RV Tankless Water Heater
Instant hot water with 68,000 BTU output delivers 3.9 GPM, suitable for long showers, kitchen cleaning, and daily washing. On-demand operation eliminates waiting time, making it ideal for families and groups traveling in RVs. The compact 14.96 x 14.96 x 14.18-inch design fits most RV spaces and replaces common 6/10/12-gallon units, with straightforward 12V DC wiring and standard NPT fittings.
Best for: RV families and campers who want reliable, on-demand hot water and straightforward installation. Better for: Those prioritizing high GPM and rapid hot water delivery in a compact package. Caution: Ensure your RV’s power and gas lines support a 68,000 BTU unit and confirm space for intake/outlet connections.
ORBEK RV Tankless Water Heater, Propane
This unit offers continuous on-demand hot water using a 60,000 BTU propane burner. It activates only when hot water is requested, reducing propane usage and eliminating the need for heated storage water. Optional door panels enhance the RV’s appearance, and it’s designed for standard 15″ × 15″ and 15″ × 18″ openings, easing retrofit. O2-free copper heat exchangers and brushless DC fans support high-altitude operation with staged combustion for stable temperatures.
Best for: RV owners who want a replaceable, high-altitude-ready tankless option with configurable exterior styling. Better for: Campers replacing older tank heaters or upgrading for more efficient propane use. Caution: Verify cutout dimensions and compatibility with your existing RV opening before purchase.
VEVOR RV Tankless Water Heater, 42,000 BTU
With 42,000 BTU of power, this model delivers rapid hot water suitable for showers and dishwashing. It features an LED smart display and touch controls for easy temperature and power adjustments. Its segmented combustion technology helps adapt to seasonal changes, improving energy efficiency and preventing excessively hot water in warmer months.
Best for: RVers seeking an affordable, dependable propane tankless option with simple digital controls. Better for: Those who want intuitive operation and year-round performance. Caution: The lower BTU rating means slightly slower recovery in larger households compared to higher BTU units.
FOGATTI InstaShower 8 Plus RV Tankless Water Heater
FOGATTI offers a high-altitude ready system with three door size options for flexible retrofits. At up to 9,800 feet, this unit uses staged combustion to prevent overheating and conserve propane during travel. It can replace a range of older models and is designed for quick, reliable hot water with 55,000 BTU of power, delivering extended hot water for multiple users.
Best for: Campers needing retrofit flexibility and altitude compatibility. Better for: Users planning to upgrade from older tank heaters to a compact, efficient tankless option. Caution: Some installations may require door-size adjustments or additional retrofit hardware for perfect fit.
Feqivolt RV Tankless Water Heater, 65,000 BTU
This unit provides 65,000 BTU and dual outlets (front and rear), allowing simultaneous hot water to multiple fixtures. It includes a smart remote and microcomputer controls to maintain stable temperatures within a tight range, reducing cold spots and ensuring consistent comfort. The 15″ x 15″ door size supports common RV openings, and the unit is CSA-certified for RV use.
Best for: Families needing simultaneous hot water access at multiple points in the RV. Better for: Users prioritizing dual outlets and precise temperature control. Caution: Ensure your RV’s plumbing layout can accommodate dual outlets and maintain proper venting in tight spaces.
Buying Guide: Key Purchase Considerations
- Capacity and output: Higher BTU generally means faster heating and higher GPM. Choose based on number of simultaneous hot-water users in your RV.
- Fuel and power: All units listed are propane-powered. Confirm your RV’s propane supply and electrical setup (some models include 12V DC wiring requirements).
- Altitude performance: If you travel at high elevations, prioritize models with high-altitude support and efficient combustion to avoid reduced performance.
- Installation compatibility: Check door sizes (e.g., 15″ x 15″ or 12.6″ x 12.6″) and opening cutouts to ensure retrofit compatibility with your RV’s existing space.
- Control and convenience: Look for LED displays, remotes, and microcomputer control for easy temperature adjustment and troubleshooting.
- Safety features: Ensure the unit includes oxygen-free copper heat exchangers, flame monitoring, and leakage protection, especially in mobile environments.
- Replacement considerations: Some brands offer door panels or retrofit options to align with the RV’s interior styling and existing openings.
Frequently Asked Questions
- What size propane heater do I need for a family RV? — A higher BTU model (60,000–68,000 BTU) with 3.5–4 GPM is typically suitable for multi-user showers and kitchen tasks.
- Can these heaters work at high elevations? — Yes, many models include high-altitude readiness and staged combustion to maintain stable temperatures up to about 9,800 feet.
- Are dual-outlet heaters better for RVs? — Dual outlets allow simultaneous hot water at multiple fixtures, which is beneficial for larger RVs or families.
- What should I verify before retrofitting in my RV? — Confirm door size, cutout dimensions, gas line compatibility, venting, and electrical requirements for your installation space.
- Is a remote control important for RV tankless water heaters? — A remote or smart display can simplify temperature adjustments while on the move, improving comfort and safety.
- Do these units require a separate water storage tank? — No. Tankless heaters heat water on demand, reducing standby losses and saving space in compact RV setups.