Tankless Hot Water Heater Air Intake

Power vent units use indoor air for combustion and simply vent the exhaust to the outside.

Tankless hot water heater air intake.

Direct vent units pull in air from outside the house so they have two vents for intake and exhaust. Gas tankless water heaters don t have to use indoor air for combustion. What code would does apply in this case. Saves energy compared to traditional furnaces when integrated with rinnai s highly efficient tankless water heaters or boilers that can deliver home.

The manufacturer seems to be ok with either approach. A direct vent water heater draws air for combustion from outside your home rather than inside. 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. Do i have to run an intake pipe direct to outside would require ripping out ceiling.

2 on top and 2 on bottom. The air intake filter is located inside the tankless water heater. 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. The exhaust gases and excess heat produced by your water heater are then vented back outdoors.

It is held together with 4 screws. A direct vent water heater uses special coaxial venting that has separate chambers for intake air and exhaust in a single assembled vent piece. And a tankless gas water heater might work great at 8 000 ft. Tankless water heaters can be vented in two ways.

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. Don t worry it s not hard to get to at all but you have to first remove the tankless water heater face plate.