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. Facts about tankless water heater venting. Proper venting gas and propane heaters emit carbon monoxide which must be vented outside. Vent adapter is needed to connect the water heater which is tankless to the exhaust hose. Tankless water heater venting features.

Ok so san jose has the following requirements for where to install the tankless water heater. Tankless units withstand below freezing temperatures. American tankless water heaters venting. Tankless water heaters can be vented in two ways.

Indoor tankless water heaters draw in outside air. Outside tankless water heaters free up indoor space. Direct vent and power vent. You do have way more options with electric than with gas or propane but the issue generally is the gpm.

Tankless water heaters don t always need two ventilation pipes even for direct vent units. In fact a tankless unit may be slower. Tankless water heaters are vented in two ways. These vents must be made of suitable materials and be kept clear of combustible materials.

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. Select either an adapter of three inch or an adapter of four inches depending on what water heater model you decide. Special stainless steel pipe. Gas tankless water heaters don t have to use indoor air for combustion.

These vents must be made of suitable materials and be kept clear of combustible materials. No they don t need to be vented. Restrictions on gas fueled tankless water heaters no gas appliance may be located in a room used. The tankless heater cannot share vent piping with any other appliance and it cannot use a masonry chimney flue for venting.

Vent termination all tankless water heater vents must terminate at least 4 feet from a property line. The water heater must be vented in accordance with the section venting of equipment of the latest edition of the national fuel gas code. 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. It takes time for the tankless unit s heating element to first heat water before delivering it to the tap.

All emission of liquid or gas water heaters which are tankless needs vent pipes made of stainless steel and approved by ul.