Water supply Cold Water In

Gas supply

Concentric vent: fresh air in, exhaust out

Forced air home heat

How it works

The RedZone Air Handler

The condensing tankless water heater supplies an endless amount of hot water for both domestic use and at the same time hot water to the RedZone air handler for comfortable home heating.

Warm water out: to tankless water heater to be reheated

Hot water out: domestic use & RedZone air handler