APUS RV Tankless Water Heater 5 GPM White Door — 80,000 BTU Propane, 12V Remote

The APUS RV Tankless Water Heater delivers on-demand hot water up to 5 GPM using an efficient 80,000 BTU propane burner, designed to fit standard 13"×13" RV wall openings and operate reliably from sea level to 10,000 ft.

Engineered specifically for mobile living, this propane-powered tankless unit replaces bulky storage tanks with steady, continuous hot water for showers, dishes and daily chores. The compact cabinet, wired remote control, and smart staged combustion balance performance and fuel economy, while multiple safety systems and CSA certification address RV safety and durability in varying climates.

How quickly will this unit supply hot water for showers and sinks?

This heater produces up to 4.8–5.0 gallons per minute of hot water so two fixtures can usually run sequentially without a long wait. Its ultra-low 0.55 GPM ignition means reliable startups even at low flow, and intelligent temperature control keeps output steady during use.

• Rated flow: around 4.8–5.0 GPM for typical RV conditions.
• Ignition flow: 0.55 GPM supports quick, low-flow activation.
• Staged combustion adjusts fuel use to demand for steadier temperature.
• Wired remote lets you set temperature conveniently inside the RV.

What are the installation and power requirements for an RV?

The APUS unit is sized to match the common 13"×13" exterior cutout used on many RVs and measures roughly 14.96" square by 14.18" deep. It runs on 12V DC for controls and fan operation and connects to a standard propane supply; confirm your wall opening, propane line fittings and 12V circuit before purchase.

• Standard cutout compatibility: fits many 13"×13" RV wall openings.
• Dimensions: approximately 14.96" × 14.96" × 14.18" overall.
• Electrical: 12V DC for fan and wired remote control included.
• Fuel: connects to onboard propane; staged combustion reduces fuel use.

Will this heater work at high altitudes and in cold weather?

Yes—the combustion system and forced exhaust fan adapt to changing air pressure so the heater maintains performance up to about 10,000 feet elevation. Frost-protect features and automatic anti-freeze activation protect internal parts down to near-freezing ambient temperatures.

• Altitude performance: reliable operation up to 10,000 ft.
• Combustion adapts automatically for stable flame and heat output.
• Auto anti-freeze protection triggers at 35.6°F (2°C) to protect components.
• Forced exhaust fan improves combustion stability in thin air.

What safety features and certifications does it include?

The heater carries CSA certification and integrates numerous protections that are important for mobile applications: pressure relief, flame failure cut-off, dry-burn detection, over-temperature shutdown, gas leak monitoring and airflow supervision. These features are designed to minimize risk and protect the unit and occupants.

• CSA certified for recognized safety standards in RV installations.
• 203 PSI pressure relief valve included for overpressure protection.
• Flame failure and gas leak protections shut fuel supply on fault.
• Dry-burn and over-temp safeguards prevent damage in fault conditions.

Who is this for: The APUS RV Tankless Water Heater is intended for RV owners, overlanders and camper installers who want compact, continuous hot water without a bulky tank. It suits travelers who need reliable performance across altitudes and seasons, value lower propane consumption via staged combustion, and require a unit that fits common RV wall openings and integrates with 12V systems.