I posted a while ago. Just had a new furnace installed last month. My HVAC contractor recently recommended and installed at 125,000 BTU Tempstar, single stage burner, PSC blower furnace in my 22 year old home to replace a 22 year old 140,00 BTU Bryant furnace. Basement installation in a very large utility room.
The Tempstar circulation blower is LOUD - way, way more circulation blower / motor noise now gets transmitted through the ductwork compared to the 22 year old Bryant furnace that was replaced. The noise is a low rumbling, "train like" sound whenever the blower is on - it's not an air velocity noise.
I complained to my contractor about the noise and he turned blower from setting 3 down to setting 2 - it reduced air velocity noise BUT didn't help at all with rumbling, "train like' noise from circulation blower / motor.
A couple of questions:
1) The Tempstar PS 80 does not have an insulated blower cabinet. If my HVAC contractor put sound absorbing insulation on all six sides of the blower compartment, would that help reduce the rumbling blower noise?
2) Would a section of flexible duct material installed between furnace and plenum reduce the blower noise being transmitted through the ductwork?
3) Are there "aftermarket" PSC blowers that my HVAC contractor could install that would be quieter than the factory standard Tempstar PS 80 PSC blower?
4) My research indicates the Tempstar PS 80 is a basic, builder grade furnace. My highest priority is a quiet, quiet, quiet furnace. I noticed Lennox advertises some of their furnaces are 4 or 8x quieter than competition. Any recommendations on which brands are truly ultra quiet models in a basement installation?
Don't want to take out a brand new (but noisy) furnace.....but I'm willing to consider if that what it takes to get something that is as quiet as the "obsolete" 22 year old Bryant furnace that was just removed from my house........
Thanks for your help