Can You Vent A Tankless Water Heater Into A Chimney

Water heater installed close to the roof framing would need at least 5 long vertical vent pipe single wall vent pipe requires minimum 6 of clearance to combustible materials general rule the chimney should not be outside a window or other house opening.

Can you vent a tankless water heater into a chimney.

The remaining heat creates a hot exhaust gas that requires metal venting typically stainless steel or thick aluminum. 5 above the flue collar e g. Special stainless steel pipe. The vent pipe must be made of stainless steel designed for venting corrosive gases.

Be sure to check your gas water heater annually for cracks or leaks in the flue. Most building codes require 4 inch flue pipes on water heaters. This is because most homes have water heaters and furnace sharing the same exhaust vent. Yes venting tankless water heater with furnace is possible.

I would like to replace my tank type water heater with a tankless rheem rtg 74pv in the same location. The standard galvanized vent from your old storage tank heater would quickly rust away if your tankless heater vented. Technically you can vent your tankless heater through the chimney but only in certain circumstances. With a condensing tankless water heater you don t need metal venting.

I would like to vent it into the brick chimney were the heating boiler and the old water heater was vented to. Here s how to vent a water heater to a chimney. The reason is because like a standard water heater they create dangerous combustion gases when they fire. It really is not a good idea.

To avert this problem you can vent the water heater to the largest hole in the chimney and cap the remaining holes. The biggest issue is that the condensate is very acidic and will corrode the masonry of a chimney. Chimney chimney flue must terminate min. The gases contain carbon monoxide.

Here are a few things your installer should consider for effective tankless water heater venting. However it doesn t have to be an expensive hassle to vent. Electric tankless water heaters do not need to be vented but gas tankless heaters do. Vent to the outside.