Combustion Air For Hot Water Heater

A clearance area of 12 inches is required on all sides of a hot water heater.

Combustion air for hot water heater. The air that your gas furnace and water heater and boiler needs in order to burn safely is called combustion air. Direct vent units pull in air from outside the house so they have two vents for intake and exhaust. The exhaust gases and excess heat produced by your water heater are then vented back outdoors. In this post we ll discuss combustion air including what happens if we don t have enough and what the requirements are for enough there are two basic ways for your furnace to get its combustion air.

Its unique two hose design provides combustion air for the gas furnace and hot water tank and make up air for leaks the dryer the fireplace and bathroom fans. Water heaters must be surrounded by a certain amount of clearance or air space to function properly and safely. A naturally leaky home will naturally allow replacement air combustion air to enter this is one method allowed in the code. Tankless water heaters can be vented in two ways.

The vent 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. Equaliz air is the only patented make up and combustion air device available today. The models which need combustion air from the outside are required to have a second hose which is supposed to be put in. Around the water heater.

Lack of adequate combustion air causes improper heater operation increased maintenance cost and risks dangerous production of carbon monoxide gas. Gas tankless water heaters don t have to use indoor air for combustion. Proper venting prevents backdrafting. In addition to venting gas and propane water heaters need an air supply for combustion.

This offered a large volume of interior combustion air. A direct vent water heater uses special coaxial venting that has separate chambers for intake air and exhaust in a single assembled vent piece. When the home was built water heater installed and combustion air designed the water heater was likely in a wide open unfinished basement. As a general rule any gas heater which is tankless uses combustion air must have a minimum area of 10 000 cu.

Enclosed areas just as closets might need air ducts and extra air inlets. This article series explains how to recognize diagnose problems with residential heating boilers including loss of heat heating boiler noises leaks odors or smoke and high heating costs. This may come from the atmospheric air in the house or it can come through a vent pipe that pulls air from the outdoors. A direct vent water heater draws air for combustion from outside your home rather than inside.