Tankless Hot Water Heater Air Intake

2 on top and 2 on bottom.

Tankless hot water heater air intake.

Because average water supply inlet temperature varies by location the ideal tankless water heater in the south might not work at all in the north. It is held together with 4 screws. A direct vent water heater draws air for combustion from outside your home rather than inside. The air intake filter is located inside the tankless water heater.

However it would seem it would get plenty of combustible air from the room and i would likely never get a negative pressure situation because of the fresh air intake they put when the house was built. Power vent units use indoor air for combustion and simply vent the exhaust to the outside. I have the option to let our new tankless water heater intake indoor air it will be installed in a semi finished basement or intake it from the outside. Our furnace boiler intakes indoor air as currently installed so logic tells me i could do the same with the tankless water too.

Direct vent units pull in air from outside the house so they have two vents for intake and exhaust. The exhaust gases and excess heat produced by your water heater are then vented back outdoors. Altitude but not work at all at 12 000 ft. Do i have to run an intake pipe direct to outside would require ripping out ceiling.

A direct vent water heater uses special coaxial venting that has separate chambers for intake air and exhaust in a single assembled vent piece. Saves energy compared to traditional furnaces when integrated with rinnai s highly efficient tankless water heaters or boilers that can deliver home. Tankless water heaters can be vented in two ways. What code would does apply in this case.

The rinnai hydronic air handler systems connects seamlessly to select rinnai tankless water heaters to deliver efficient home heating and domestic hot water simultaneously in one complete system. And a tankless gas water heater might work great at 8 000 ft.