Tankless Water Heater Vent Requirements

See the use and care manual for important information regarding the venting installation and materials for your tankless water heater.

Tankless water heater vent requirements.

In fact a tankless unit may be slower. Facts about tankless water heater venting. You do have way more options with electric than with gas or propane but the issue generally is the gpm. Tankless water heaters are vented in two ways.

The tankless heater cannot share vent piping with any other appliance and it cannot use a masonry chimney flue for venting. All emission of liquid or gas water heaters which are tankless needs vent pipes made of stainless steel and approved by ul. American tankless water heaters venting. Indoor tankless water heaters draw in outside air.

Restrictions on gas fueled tankless water heaters no gas appliance may be located in a room used. Proper venting gas and propane heaters emit carbon monoxide which must be vented outside. Ansi z223 1 nfpa 54 in the united states and or section 7 of the can csa b149 1 natural gas and propane installation code in canada as well as applicable local building codes. The vent pipe must be made of stainless steel designed for venting corrosive gases.

Vent termination all tankless water heater vents must terminate at least 4 feet from a property line. Tankless water heaters can be vented in two ways. Gas tankless water heaters don t have to use indoor air for combustion. Select either an adapter of three inch or an adapter of four inches depending on what water heater model you decide.

Direct vent and power vent. Outside tankless water heaters free up indoor space. Vent adapter is needed to connect the water heater which is tankless to the exhaust hose. Special stainless steel pipe.

Tankless water heater venting features. Tankless water heaters don t always need two ventilation pipes even for direct vent units. Ok so san jose has the following requirements for where to install the tankless water heater. These vents must be made of suitable materials and be kept clear of combustible materials.

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. 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 units withstand below freezing temperatures. No they don t need to be vented.

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.