Direct Vent Tankless Hot Water Heater

But many manufacturers now adopt concentric vents only.

Direct vent tankless hot water heater.

Direct vent tankless water heaters require no extra power the exhaust gas is drawn out vertically through separate vent duct. There are two types of venting available for this type of tankless water heater. Direct vent units pull in air from outside the home or building and have two vents one for intake and one for exhaust. Tankless water heaters are vented in two ways.

Tankless water heaters are ventilated in two ways. Rheem rtgh 6 4 gpm at 60 f rise 0 93 uef gas tankless water heater direct vent model. Noritz nrc71dvng indoor condensing direct vent tankless water heater 7 1 gpm natural gas 4 6 out of 5 stars 9 1 050 00 1 050 00 1 60 oz. Direct vent units attract outside air from the house or building while power vent units solely need an exhaust vent and should be installed in a larger area for receiving sufficient air amount for combustion.

One is for intake while the other for exhaust. Direct vent and power vent. Thus the using costs and venting costs are quite low. Ultra low nox emissions scaqmd rule 1146 2 compliant.

There are concentric and dual. This configuration allows tankless units to fit in smaller spaces. For most direct vent systems two pipes are used. In fact tankless water heaters save up to 16 square feet of space.