Ducting Through Floors - Fire Insurance

A Coal stoker furnace or stove controls most operations including automatically feeding the coal. They are quite similar to any conventional oil and gas units and easily operated for extended periods of time. They commonly use rice coal but may use larger sizes like buckwheat. They can be used as primary heat, supplementary heat or have a dual set up with your existing oil/gas furnace.
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Joined: Thu. Dec. 10, 2009 10:51 am
Coal Size/Type: rice
Other Heating: Electric, Propane
Stove/Furnace Make: Leisure Line
Stove/Furnace Model: Pioneer LE Top Vent
Location: Eastern MA

Post Wed. Feb. 19, 2014 4:43 pm

Just a note.

The NFPA (National fire code, not adopted by all states) explicitly requires any ducting passing through a floor be protected with an automatic fire damper. There is an exception for UL listed furnaces that have a 165F automatic shutdown and there is no interruption in the ducting from the furnace..

Just a note, my inspector follows the NFPA code and my insurer voids my fire insurance if the inspector doesn't sign off.

Actually automatic fire dampers are not hard to come by, they are often just a short piece duct with a spring loaded damper held open with a link that melts at 165F, closing the duct.

Just a note re fire insurance, check your area!

Check your CO detector - It's nasty to wake up dead

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