The Rinnai Hydronic Air Handler System easily integrates with select tankless water heaters or boilers to deliver energy-efficient warmth.

Water recirculatingpump

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Grundfosrecirc pump

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For small- to medium-sized new homes or remodels, Rinnai’s high-efficiency models are affordable, compact units you can count on.

RecirculationpumpBell & Gossett

Connect to your Rinnai tankless water heater from virtually anywhere using your local WiFi network and the free Rinnai Central™ mobile app.

Waiting for hot water can be frustrating, costly, and wasteful. Recirculating technology eliminates the wait, so hot water is always at the ready. Our technology permits this even if your home does not have a dedicated return line.

Rinnai’s Recirculation Push Button accessory activates the tankless water heater recirculation pump by simply pressing the button.

Grundfosrecirc pumpwith temperature sensor

If your home does not have a dedicated return line, select Rinnai tankless water heaters can offer faster hot water without adding an additional cold return line. This technology allows for the simple installation of a thermal bypass valve at the fixture farthest away from the water heater. Once installed, the unit temporarily uses the cold water line for recirculation.

Rinnai Vent-Free Convectors push heat to the farthest reaches of the room, evenly warming larger spaces and maximizing cost-savings.

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Recirc pumptaco

Rinnai’s super high-efficiency models offer sleek design, maximum output and an array of features ideal for the hot water demands of large homes.

Rinnai Condensing Boilers deliver more efficient home heating than traditional boilers, while also providing domestic hot water.

Recirc pumpwith Timer

Intelligently enable recirculation in your home to have hot water faster when you need it. Rinnai tankless water heaters have built-in pumps with Smart-Circ™ Intelligent Recirculation™ that learns your schedule. No dedicated return line, no problem. A thermal by-pass valve added to the cold water line helps ensure recirculation is enabled, and your unit takes it from there. Plus, take it to the next level with an RWM200 Wireless module (optional | sold separately) to Wi-Fi enable your tankless water heater, and control the schedule from your phone.