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14+ Furnace Vent Pipe Requirements US

14+ Furnace Vent Pipe Requirements US. My question is regarding vent pipe size. This keeps the vent pipe warm enough for water heater venting, even if the furnace is not running at the same time.

Venting for High Efficiency Furnace
Venting for High Efficiency Furnace from st.hzcdn.com
Concentric venting features two same size vent pipes fitted together; There's several other requirements which apply to certain types of furnaces and water heaters venting. Floor to center line of vent.

The flue is also a safeguard against fire.

*tc series gas furnaces offer a wide. Pull baffle up and out. In summer, the vent pipe remains warmer than in. Side return air inlet this.

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