Air Return Question

Air Return Question

PostBy: jrn8265 On: 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?

Stove/Furnace Make: Keystoker Koker
Stove/Furnace Model: Koker 160

Re: Air Return Question

PostBy: Dallas On: 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.
Hand Fed Coal Stove: Modified Russo C-35
Other Heating: Oil Hot Air
Stove/Furnace Make: Russo
Stove/Furnace Model: Modified C-35

Re: Air Return Question

PostBy: WNY On: 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.
Hot Air Coal Stoker Stove: Keystoker 90K, Leisure Line Hyfire I
Coal Size/Type: Rice
Stove/Furnace Make: Keystoker, LL & CoalTrol
Stove/Furnace Model: 90K, Hyfire I, VF3000 Soon