Tankless Water Heater Vent Requirements

The water heater must be vented in accordance with the section venting of equipment of the latest edition of the national fuel gas code.

Tankless water heater vent requirements.

Special stainless steel pipe. The vent pipe must be made of stainless steel designed for venting corrosive gases. Proper venting gas and propane heaters emit carbon monoxide which must be vented outside. All emission of liquid or gas water heaters which are tankless needs vent pipes made of stainless steel and approved by ul.

Vent adapter is needed to connect the water heater which is tankless to the exhaust hose. Tankless does not mean instant hot water contrary to popular thought a tankless water heater does not necessarily deliver hot water to your tap any faster than a conventional water heater. No they don t need to be vented. Tankless units withstand below freezing temperatures.

Restrictions on gas fueled tankless water heaters no gas appliance may be located in a room used. Indoor tankless water heaters draw in outside air. Direct vent and power vent. Tankless water heaters can be vented in two ways.

American tankless water heaters venting. Gas tankless water heaters don t have to use indoor air for combustion. It takes time for the tankless unit s heating element to first heat water before delivering it to the tap. All indoor tankless gas water heaters must be vented vertically or horizontally to the outdoors using factory approved venting material no other venting material is permitted.

In fact a tankless unit may be slower. Outside tankless water heaters free up indoor space. You do have way more options with electric than with gas or propane but the issue generally is the gpm. These vents must be made of suitable materials and be kept clear of combustible materials.

These vents must be made of suitable materials and be kept clear of combustible materials. The tankless heater cannot share vent piping with any other appliance and it cannot use a masonry chimney flue for venting. If you have issues with where to place a tankless water heater due to venting concerns then your best bet may be to get an electric tankless water heater. Vent termination all tankless water heater vents must terminate at least 4 feet from a property line.

Facts about tankless water heater venting. Tankless water heaters don t always need two ventilation pipes even for direct vent units. Tankless water heater venting features. Select either an adapter of three inch or an adapter of four inches depending on what water heater model you decide.

Ok so san jose has the following requirements for where to install the tankless water heater.