Water supply Cold Water In
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