Direct Vent Vs Power Vent Water Heater
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There are also power direct vent models which use a fan to exhaust combustion gases.
Direct vent vs power vent water heater. Continue reading to learn more. Two of the most popular types of water heaters today include the direct vent and power vent. The difference between the two water heater types is combusted from the burner to the vent system. A direct vent water heater vents these combustion gases to the atmosphere while a power vent water heater removes them with the aid of a powered venting fan.
The only downside is that direct vent water heaters are significantly more expensive running up to twice as much as a regular water heater. If your direct vent uses a chimney to expel air you ll need to have the heater located near one. The chimney above the roof is failing i don t want to pay to have it rebuilt so i want to abandon it the hot water tank is all that uses it. The venting can run either vertically or horizontally with a longer line to help with space and sizing issues within your.
This overcomes the limitation of a regular direct vent water heater which must be located adjacent to an exterior wall. Nic o neill at haley mechanical in ann arbor michigan explains the difference between a direct vent and power vent water heater. Condensing water heaters tank or. The negative is the limitation on distances.
Two of the most common type of water heaters are atmospheric vent water heaters and power vent water heaters. The blower pushes the exhaust and excess heat through the exhaust venting. November 2015 in domestic hot water. Smith power vent gas water heaters are equipped with an electric blower fan that is installed on top of the water heater which requires an electrical outlet to be close to the water heater.
While atmospheric vent water heaters are simple and don t require electric power or moving parts power vent water heaters use a fan to push the excess gases through the venting pipes and outside. Power vents don t use chimneys but need to be in rooms with adequate air flow. Here we will go over the two most popular water heater types direct vent and power vent. Power direct vent is used when the indoor air quality is a concern.
With the dv heaters chances of the house going under a negative pressure are minimal. You may find the power vent water heater hiking your electricity bill since electricity is required for the fan to run.