Incline Engine Heat Transfer Water Heater (4 Gallons)

The New Incline Version 2 is now available for pre-order. Current orders will be fulfilled approx. May 21st, 2025.

The Incline Engine Heat Transfer Water Heater (4 Gallons) uses excess heat from the engine to rapidly heat and maintain 4 gallons of water, providing hot water every time you start the engine and reducing the amount of power you need to heat your water by 98%. 

Inside the insulated tank, the heated water will stay hot for 12-18 hours. If you’re stationary for longer than that, the electric heating element will keep your water up to temperature indefinitely. Simply connect the heater to your power system and set the desired minimum temperature. 

This durable unit was designed to mount neatly under the passenger sliding door or on the driver's side of a Sprinter van next to the fuel tank. The optional install kit comes with the necessary mounting brackets and hoses to quickly install the water heater with minimal fuss.

Made in the USA of stainless steel, the main heater core is nearly indestructible, won’t rust and allows the hot water to maintain drinking water quality. The exterior shell is made of lightweight aluminum and protects the heater core from damage from rocks and sticks.

Key Features: Incline Engine Heat Transfer Water Heater (4 Gallons)

• Fits universally where space allows
  
• Tested and fits 2007+ Mercedes Sprinter 144", 170", 170" EXT vans under passenger side sliding door OR driver side forward undercarriage areas
• Redesigned stainless steel heater core withstands double the internal pressure (150 psi) versus Version 1 (75 psi).
• New thermal insulation reduces heat loss to the environment. 
• Dual coolant loop check valves eliminate heat loss to the engine. 
• New cylindrical design allows the heater to tuck up higher underneath the vehicle.
• Optional temperature sensor integrates with vehicle data monitoring systems. 
  
• Made in the USA

Specifications: Incline Engine Heat Transfer Water Heater (4 Gallons)

This unit fits nicely underneath a Mercedes Sprinter van and sits above the pinch weld. Therefore, it does not hang down and reduce clearance.

The Optional Installation Kit Includes:

• Universal mounting brackets and hardware that fits most vans and many other vehicles.
• Thermal expansion tank for hot water line.
  
• Heater hose, hose clamps, elbows and hose mounting brackets.
• Mercedes-Benz approved engine anti-freeze/coolant.

Optional Heating Element:

The Incline Water Heater is designed to eliminate the need to use electricity or other fuel to heat water. With the heater installed, you can expect to have free hot water on demand 98% of the time.

However, we do offer an optional heating element in case you plan to have your van parked for multiple days without running the engine and you want hot water the entire time. You can add the 110v heating element to your order if you want the option to heat your water with electricity. This will heat the entire water tank in a few minutes, but does require a connection to your AC power inverter. 

The 12v heating element is no longer available due to lack of availability of the product. 

Freeze Protection:

The optional heating is adjustable from 50-190 deg. F. When parking for extended periods of time in freezing conditions, either keep the heating element set to low to prevent freezing or drain the tank so there's no risk of freezing, which is recommended for your entire water system. 

Pressure Rating:

Maximum operating pressure is 75 psi. Pressure pumps should be limited to less than 55 psi so that the heating of the water does not cause excessive internal pressure. Damage due to over-pressuring is not included under the warranty. 

MADE IN THE USA!