Aqua-Hot will be doing inventory July 1st and 2nd and we will also be closed July 4th and 5th in observances of Independence Day. During this time, we will not be shipping any online orders until July 8th. Thank you!
Van for Aqua-Hot 125 Modular

Model 125M
Customize the 125 Modular installation to maximize usage of your RV’s available interior spaces.*

Aqua-Hot M D G

The 125 Modular is a complete hydronic heating system providing luxurious comfort and continuous hot water with individual components installed neatly where interior space allows.

Compact, Modular Components Space saving and easily integrated into areas available within cabinetry, benches, seating, or storage areas.

High Altitude Ready Operating efficiently at altitudes up to 16,000 ft., the 125 automatically adjusts the fuel-to-O2 ratio to optimize burner flame and provide consistent, reliable heat and hot water. No need for additional kits or add ons. Unlike other systems, the 125 will not soot up or require additional maintenance due to high altitude use.

Great for Off-Grid Uses the van’s fuel (Diesel or Gasoline)— no supplemental fuel needed.

Heat Where You Need It Compact, quiet heat exchangers can be placed throughout the interior where heat is needed—no more hot spots/cold spots

Continuous Hot Water 110-120ºF at .8 gpm for kitchen and shower.

Quiet The combustion unit is outside the van and has its own muffler, while low decibel fans provide heat inside.

Night Mode Provides ample heat with further noise reduction.

Dual Power Source Can also provide heat and hot water using 120v shore power.

LCD Controller Up to 3 independently controlled zones, plus test and diagnostic read out (easy to use).

Nationwide Service Network The 125 is supported by over 300 service centers throughout North America.

Aqua-Hot Modular Parts

*The complete install may require additional hoses, clamps, and cozy heat exchangers for your custom build.

The 125 Modular is a complete hydronic heating system providing luxurious comfort and continuous hot water with individual components installed neatly where interior space allows.

Aqua-Hot heating systems have been bringing comfort to RVs for over 35 years. The 125 Series hydronic heating system has a compact footprint that brings comfort and reliability to Class B (Campervan) owners.

By tapping into the vehicle fuel system, the 125 doesn’t need additional fuel. By automatically adjusting the fuel-to-oxygen mix, the 125 efficiently performs at up to 16,000 ft. without the maintenance issues found in other units.

With a closed loop thermal fluid system, interior heat can be brought directly to where it is needed—the galley, the sleeping area and the seating areas. In addition, the LCD controller can adjust the heat output from each zone independently.

The 125 delivers continuous hot water at .8 gpm for your convenience—at a consistent temperature of 110-120°F.

Aqua-Hot Diagram of Parts in Van


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