Combustion Air Vent For Hot Water Heater

The exhaust gases and excess heat produced by your water heater are then vented back outdoors.

Combustion air vent for hot water heater.

When a residential gas fired water heater is installed in a closet the heater combustion gases must be vented to the outside of the residence and the fresh air needed for combustion must be drawn. The difference is that a power vent water heater pulls in combustion air from the space around the appliance then uses a fan to propel the exhaust through the vent. Clamps and secure strapping are packed in the water heater carton. Gas fired water heaters like those illustrated here must be supplied with adequate combustion air and the heater s exhaust gases must be vented to outdoors.

Tankless water heaters can be vented in two ways. Direct vent units pull in air from outside the house so they have two vents for intake and exhaust. As a general rule any gas heater which is tankless uses combustion air must have a minimum area of 10 000 cu. Power vent units use indoor air for combustion and simply vent the exhaust to the outside.

Direct vent water heaters with a direct vent system air for combustion is drawn from a vent pipe that runs through an exterior wall or the roof. Exhaust gases are vented outdoors through a separate vent duct or through a separate chamber of the same pipe this requires a double wall vent duct. Failure to properly vent a gas fueled water heater can result in severe injury or death from carbon monoxide poisoning. What is combustion air.

No other roof jack or air inlet assemblies are approved for installation with the manufactured housing direct vent gas water heater. The models which need combustion air from the outside are required to have a second hose which is supposed to be put in. Gas tankless water heaters don t have to use indoor air for combustion. A direct vent water heater uses special coaxial venting that has separate chambers for intake air and exhaust in a single assembled vent piece.

It is the air necessary for a gas appliance such as a water heater to function properly. Around the water heater. Not to get too basic here but gas appliances require a certain amount of air to be used for combustion much the same way that the fire in your fireplace needs air to get started and to keep burning. Enclosed areas just as closets might need air ducts and extra air inlets.

The vent system must be installed by a qualified person. Combustion air defects at heating boilers furnaces water heaters diagnose signs of inadequate combustion air for an oil or gas burner dangers of carbon monoxide poisoning if there is soot production at gas fired heating appliances inadequate combustion air can cause dangerous carbon monoxide gas in buildings combustion air safety check procedure for gas fired heating equipment how to test.