Koker BOTTOM Exhaust Installation

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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New Member
Posts: 2
Joined: Fri. Nov. 01, 2013 8:47 pm
Stove/Furnace Make: Keystoker
Stove/Furnace Model: Koker

Post Tue. Nov. 19, 2013 10:11 am

I am trying to install a bottom exhaust Koker furnace and have questions about installing the blower motor and filter brackets. Biggest question....with the exhaust right next to the blower motor, will the heat from the exhaust bother the blower? If I install the filter bracket clearance from the exhaust pipe becomes less than an inch. I am not direct venting this, it is hooking into my existing chimney via 6" black stove pipe. Needless to say the manual is less than informative. Anyone have any advice here?

Posts: 264
Joined: Thu. Apr. 14, 2011 12:13 pm
Hot Air Coal Stoker Stove: Keystoker Koker controlled with CoalTrol
Location: Springville, NY

Post Wed. Nov. 20, 2013 8:31 am

Could you post a picture of it? I looked at the back of my top vented koker, and I couldn't see any room for a rear exhaust so I can't picture in my head how it is positioned on yours. But, I wouldn't worry about damaging your convection blower, Keystoker wouldn't put it there if it wasn't safe. If you look at your blower, the motor is centered within the fan housing so heat from outside really shouldn't bother it. During times of high heat output (highest stove pipe temps), your convection fan would be running anyways which cools the fan motor by default. If you are concerned about the filter being close, you can put a heat shield between the filter and the stove pipe. A piece of metal or Reflectix Reflective Insulation would do the trick.

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