ReplyNot much you can do. That furnace wants to move a lot of air to be efficient and not overheat. Your dealer can reduce blower speed slightly but I wouldn't expect much difference in air noise.
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New Guest
I have a newer Rheem RGTM10EBRJS down flow configured system. The in-slab duct work in my 2100 square foot rancher home appears to be small and the system itself is oversized for my home. Consequently, when the blower kicks on the system is very loud. Short of relocating the duct work (which is expensive) what can be done to alleviate the noise?
Thanks in advance.
Global Moderator
Not much you can do. That furnace wants to move a lot of air to be efficient and not overheat. Your dealer can reduce blower speed slightly but I wouldn't expect much difference in air noise.
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New Guest
Is there any way I can slow down the blower? I believe there are dip switches that need to be adjusted I just don't know which ones.
Thanks
Professional Member*
First of all, that furnace is huge! 105,000 btu. 95% efficient. WOW That furnace has the biggest blower Rheem makes.
Suggest having the installation company return and adjust blower switches, not a homeowner task.
Where is the furnace located and explain what the return ducting is like. might have something done there?
Also what size a/c do you own?
As iron sharpens iron so one man sharpens another Proverbs 27:17 NIV84
New Guest
Yeah I think I got massively oversold. I have two returns, both are in the ceiling, one is quite large (24"x36" or so) and it is located about 40-50 away from the unit. The other return is small at 12"x12" and it's located 5 ft from the unit. The A/C is a 3.5 ton 18 seer.
Professional Member*
Run duct work to your neighbors, the furnace is large enough to heat their homes. LOL:
You can have them wire it up to be on low speed heat all the time. BTW, if its a Rheem 18 seer, they only come in 2-3-4-5 ton, not 3.5ton which seems awfully large also.
As iron sharpens iron so one man sharpens another Proverbs 27:17 NIV84
New Guest
How many square feet should that unit be able to heat and cool? The reason I ask is I'm putting a sizeable addition on my house (about 1400 square feet). Maybe my current unit could handle everything?
Professional Member*
You existing furnace should be adequate for this addition, but how are you planning on getting the ductwork into the addition. "In slab" ductwork does not usually lend itself to expansion plans. What type of "in slab" ductwork do you have? (What is the ductwork made from?).
New Guest
The addition is being build on top of the part of my rancher where the slab ducts are. I was thinking I could run all new duct work between the preexisting first floor and the new to be added second floor. The ducts that would service the old part of the house and the addition. I would decommission the slab ducts.
