Air Return Question

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Posts: 930
Joined: Tue. Jul. 22, 2008 11:52 am
Stove/Furnace Make: Keystoker Koker
Stove/Furnace Model: Koker 160
Location: Near Coal Country, PA

Post Fri. Sep. 19, 2008 9:20 am

Want to run a keystoker kokers fresh air return directly to an existing air return, connect the round pipe off the blower to a small square return (about a 8 ft run) but am concerned it may be loud. Here's what I mean...

The existing return is a square duck that is 5"X 10" and connects to a register on the first floor just above the koker where I sit and watch TV. Do you think the 1560CFM fan will cause a loud rush into that register or under the floor when it is running?

Not sure how much a 1560cfm fan will suck thorugh the register.

Also, anybiody know how loud the koker 1560 cfm blower is?


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Joined: Mon. Nov. 12, 2007 12:14 pm
Hand Fed Coal Stove: Modified Russo C-35
Other Heating: Oil Hot Air
Stove/Furnace Make: Russo
Stove/Furnace Model: Modified C-35
Location: NE-PA

Post Fri. Sep. 19, 2008 9:35 am

I think, the fan motor, right at the fan, will be much louder than the air entering the register. Try it.

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Hot Air Coal Stoker Stove: Keystoker 90K, Leisure Line Hyfire I
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Stove/Furnace Model: 90K, Hyfire I, VF3000 Soon
Location: Cuba, NY

Post Fri. Sep. 19, 2008 9:49 am

I doubt it will have the RUSH of air, but maybe just fan noise, You may have to put an insulated (rubber) joint in the duct work to eliminate the hum or buzz created. That is what happens to my cold air return pipe, it has a loud hum when the blowers are on FULL.
- Dave
Hyfire I & Keystoker 90K heating an 1890 Victorian
- Amsoil Authorized T1 Certified Dealer

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