Harman Magnum Blower Fan

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: Sun. Sep. 17, 2006 8:01 pm

Post Wed. Oct. 31, 2007 11:24 pm

anyone ever put on a bigger fan on there magnum for more ductworking in your house

or any pictures of your ductwork would be cool


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Posts: 74
Joined: Wed. Aug. 30, 2006 3:52 am
Stove/Furnace Make: harman
Stove/Furnace Model: magnum stoker
Location: tobyhanna, pa

Post Thu. Nov. 01, 2007 2:18 am

hi stine,

oddly enough, I was looking for a larger cfm distribution blower last evening in a grainger catalog. i'd like to find one with a rheostat built in, because too much distribution air will gradually defeat your purpose considering the surface area of the stove delivering the heat.

here's some pics of my modest ducting to the second floor...sure beats the hell out of the "i'll just open up the cellar door" theory.

i blocked 1/2 of the air coming out the front of the stove with bar magnets, the rest goes up the 6" duct. works very well.

the pictures are from a post I made last year.

Magnum stoker settings for the control box


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Posts: 7
Joined: Sun. Sep. 17, 2006 8:01 pm

Post Thu. Nov. 01, 2007 9:17 am

idid the same thing with duct work,only thing I did different is neck it down from 6 inch to 4 ,and have 3 4 inch lines plumbed into the floor(air seems to move alittle faster ,and plumbed a 4 inch fresh air intake to the stove

but I am also looking for a bigger blower

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