Aqua-Hot Heating

Aqua-Hot Hydronic Heating: Setting the Standard for RV Comfort

Aqua-Hot holds a unique distinction in the world of recreational vehicle comfort: they created the first hydronic heating system engineered specifically for RVs. For over four decades, that pioneering spirit has made them the undisputed market leader in RV hydronic heating, trusted by everyone from weekend campers to full-time motorcoach travelers.

So what exactly sets hydronic heating apart from conventional forced-air furnaces? At its core, Aqua-Hot hydronic heating uses tubing to run hot liquid into heat exchangers that disperse heated air into living areas, while coils with potable water running through them wrap around the boiler to deliver hot water to faucets and appliances. The result is a fundamentally different — and far more comfortable — on-road experience.

Multi-Function Performance from a Single Unit

Aqua-Hot systems can supply moist interior heating, bay heating to keep pipes and tanks from freezing, hot water on demand, and engine pre-heating. That four-in-one capability means RVers are replacing multiple separate appliances with one compact, integrated system. A variety of heat sources are used depending on the system, but all use some combination of the vehicle's engine surplus heat, diesel fuel or propane, and AC shore power.

The flagship 450D TribridHot model exemplifies this philosophy — its tri-energy design draws from engine heat while driving, AC shore power for light-duty use, and diesel fuel for serious cold-weather performance, delivering up to 65,600 BTUs of interior heat exchanger output and tankless hot water at 1.5 GPM.

A Model for Every RV Class

There are premium heating solutions from Aqua-Hot for any size motorhome, with models for Class A, Class B, Class C, travel trailers, and 5th Wheels. The compact 125 Series (available in diesel, gasoline, and modular formats) is purpose-built for van conversions and smaller rigs, while the 175 Series steps up for serious adventurers. The Aqua-Hot 175 is available in modular and black box formats, engineered with an Espar burner, smart installation efficiencies, and high-quality connections — designed for the rigors of off-road travel.

The Wave40, one of Aqua-Hot's newest innovations, raises the bar further. The Wave40 is a patent-pending technology offering 34,000 BTUs and 10% more airflow than the previous generation, rated for high altitudes up to 15,000 feet, with Wi-Fi connectivity, four heating fan speeds, ten air circulation fan speeds, and an automated timer.

Why RVers Choose Aqua-Hot Heating

• Even, moist heat: There are no hot or cold spots — Aqua-Hot heating systems are in-floor with multiple heat zones throughout your RV.
• High-altitude ready: The automatic fuel-to-O₂ calibration keeps the burner clean, consistent, and maintenance-free at extreme elevations, no add-on kits required.
• Closed-loop reliability: With its closed-loop thermal design, the system delivers efficient, even heating and long-term reliability — built to match the life of your vehicle.
• Massive service network: With the industry's largest network of authorized service centers — over 300 in North America — Aqua-Hot systems make the road a more comfortable and safer place for RVers.

For over four decades, Aqua-Hot has built a legacy of excellence in hydronic RV heating, and as part of the Airxcel family of brands, continues to advance heating innovation — from high-end motorcoaches to off-grid campervans — ensuring travelers experience the same warmth and dependability wherever their journeys lead.