Was looking at garns website and saw the size of that motor :bug: . If that thing is a 3450 rpm motor it probably is rated at like 14 amps, or is it just a 1725 rpm? If it is a 3450 rpm is'nt it really noisiy. I have a dust collector in my shop that has a 3/4 hp 3450 rpm motor on it and that thing is loud as hell.
Garn blower motor
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it is a 3/4 hp motor fla rated 13 amps, 3450 rpm, about 350 cfm through 6 inch flue, a little noisy but if you want 450k+ btu/hr its all part of it
being ul rated it can be placed in a basement,and actually the closer the heat source is to the emitters the the less it will cost for installation and will be more efficient. my garn is in a outbuilding, however if i was going to do it all over again, i would build a structure on the side of the garage so as to keep the piping in the house and short as possible, oh and i almost forgot, so as not to hear the inducer motor
In the various U-tube video's that I have watched on the Garn, the noise from the blower motor would be too intrusive for the basement installation that I am considering.
Has anybody out there had any success offsetting the blower motor in a sound insulated cupboard (with appropriate 6" ducting running back to the Garn)?
Has anybody out there had any success offsetting the blower motor in a sound insulated cupboard (with appropriate 6" ducting running back to the Garn)?
Kind of weird to see old postings appear, anyway remote mounting could be a option but two things come to mind . one you are ducting hot fluegas away from and back to the boiler, that heat is precious to the heat exchange in the last pass, as physically it would work you are losing effiency through this , insulation midht help. two you are increasing backpressure with the extra ducting. you would have to experiment with the cupboard design and minimal ducting transitions and try it. intresting approach though.
Chilipadi said:
I wouldn't recommend it. That motor gives off a very appreciable amount of heat. If you were to enclose it you would then have to provide forced ventilation for the cabinet. The motor itself has to stay connected to the Garn and cannot be mounted remotely from it. The blower wheel itself is directly attached to the motor shaft and is located in an area made for it in the heat exchanger flue.
Chilipadi said:
If noise is what you are trying to avoid, simply apply noise reducing drywall to the inside (outside too if you prefer) of the enclosure (room) for the Garn in your basement. It is a code requirement here for apartments, condo's etc that share common walls & will greatly reduce noise transfer from one area to another. It is more $$$ than regular drywall but performs well.
Having worked in several different cabinet shops with a variety of dust collectors, the obnoxious noise from them is due to the type of impeller they use, as well as the thin fabric collection bags, which do not provide any real sound absorption of the acoustics from the impeller. The motors themselves (3/4 hp 3450 RPM) make little noise. The GARN's impeller is mounted inside the steel (0.25" thick) heat exchanger housing. Even when standing next to mine when in operation, a normal conversation can be had. When I am in my garage on the other side of the wall from the GARN, the fan sound is virtually imperceptible, and there is only plywood between me and the GARN room. If a GARN is installed in a basement and there is living/sleeping space above, I would suggest thoroughly insulating the joist spaces to attenuate the sound and sheetrocking the ceiling & walls around the GARN area.
HTH.
HTH.
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