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cannonman 07-18-2010 08:13 PM

BTU Deficiency
 
I had a Manual J performed on my house and it came up at exactly 48,000 BTUs. If I put in a system that is rated at 46,000 BTUs, should that be of any concern? Will the 2,000 BTU deficiency cause stress on the C/U?

Thanks.

Scuba_Dave 07-18-2010 08:18 PM

Where are you located ?

Yoyizit 07-18-2010 08:26 PM

The odds are 48 KBTUH is oversized.

cannonman 07-18-2010 08:31 PM

Quote:

Originally Posted by Scuba_Dave (Post 471587)
Where are you located ?

Hot & humid, humid & hot South Florida.

beenthere 07-18-2010 11:15 PM

What was the sensible load, and what was the latent load.

cannonman 07-18-2010 11:23 PM

Quote:

Originally Posted by beenthere (Post 471700)
What was the sensible load, and what was the latent load.

I couldn't tell you. I didn't do the calculations myself and I wasn't provided that data.

beenthere 07-18-2010 11:27 PM

Then we can't tell you how well or how bad a 46,000 BTU unit will be for your house.

If you have a lot of air infiltration. It probably won't do very well. if, on the other hand, your house has little infiltration, it will probably do fine.

cannonman 07-19-2010 07:04 AM

Quote:

Originally Posted by beenthere (Post 471709)
Then we can't tell you how well or how bad a 46,000 BTU unit will be for your house.

If you have a lot of air infiltration. It probably won't do very well. if, on the other hand, your house has little infiltration, it will probably do fine.

I'll see if I can get that data today.

Thanks, everyone.


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