Tankless Water Heater Vent Requirements

In fact a tankless unit may be slower.

Tankless water heater vent requirements.

Facts about tankless water heater venting. The vent pipe must be made of stainless steel designed for venting corrosive gases. These vents must be made of suitable materials and be kept clear of combustible materials. Tankless water heaters are vented in two ways.

Indoor tankless water heaters draw in outside air. 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. Special stainless steel pipe. American tankless water heaters venting.

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. 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. Gas tankless water heaters don t have to use indoor air for combustion.

Direct vent and power vent. Vent termination all tankless water heater vents must terminate at least 4 feet from a property line. Vent adapter is needed to connect the water heater which is tankless to the exhaust hose. Tankless water heaters don t always need two ventilation pipes even for direct vent units.

Select either an adapter of three inch or an adapter of four inches depending on what water heater model you decide. Tankless water heater venting features. See the use and care manual for important information regarding the venting installation and materials for your tankless water heater. Tankless water heaters can be vented in two ways.

Tankless units withstand below freezing temperatures. Proper venting gas and propane heaters emit carbon monoxide which must be vented outside. Ok so san jose has the following requirements for where to install the tankless water heater. 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.

The water heater must be vented in accordance with the section venting of equipment of the latest edition of the national fuel gas code. 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. No they don t need to be vented.

Outside tankless water heaters free up indoor space.