Power vent and direct vent.
Direct vent tankless gas hot water heater.
The exhaust gases and excess heat produced by your water heater are then vented back outdoors.
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.
Power direct vent 80 power vent 2 available in california.
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.
For pricing and availability.
Tankless water heaters are ventilated in two ways.
Thus the using costs and venting costs are quite low.
Available in california 225.
But many manufacturers now adopt concentric vents only.
Direct vent gas water heaters are a type of gas water heater best suited for use when there is insufficient ventilation within the installation space in your home.
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Rinnai super high efficiency plus 9 gpm indoor natural gas tankless water heater.
View the performance plus tankless gas water heater 799 00.
For most direct vent systems two pipes are used.
Direct vent tankless water heaters require no extra power the exhaust gas is drawn out vertically through separate vent duct.