How much more efficient will a new central air if replacing 1986 unit?

Old 06-12-11, 01:58 PM
Thread Starter
Join Date: May 2008
Location: Cleveland Ohio
Posts: 41
Upvotes: 0
Received 0 Upvotes on 0 Posts
How much more efficient will new central air be if replacing 1986 unit?

Just curious how much my electric bill might go down if I replace my 1986 Rheem Imperial High Efficiency 2.5 ton central air unit with a new 13 Seer unit. Was there such a thing as a SEER rating back in 1986? That would help for comparison purposes.

I'm located in Cleveland Ohio. I can't really make out the model number on the Rheem since the tag is so faded after all these years. But I can tell it ends with "-030JAS". The sticker on the unit says "Imperial High Efficiency"

Thank you.
Old 06-12-11, 06:06 PM
hvactechfw's Avatar
Join Date: Jan 2011
Posts: 5,491
Upvotes: 0
Received 4 Upvotes on 4 Posts
typically would have been a 6-8 seer from 1986
Old 06-12-11, 08:04 PM
airman.1994's Avatar
Join Date: Dec 2005
Location: VA
Posts: 5,491
Upvotes: 0
Received 8 Upvotes on 8 Posts
I would go with at least a 15 seer. That will save you even more
Old 06-14-11, 03:36 PM
Banned. Rule And/Or Policy Violation
Join Date: May 2011
Location: USA
Posts: 6
Upvotes: 0
Received 0 Upvotes on 0 Posts
Lots of factors go into determining the right SEER rating for you home and overall return on investment. I think a SEER rating of 15 would generally be fine for Ohio as suggested. For a 1500 sq foot home a 2-2.5 ton unit should suffice. There is no guide that can tell you exactly how much you'll save in SEER levels. You've got to look at your bill and do the math.

Good luck!

Last edited by hvactechfw; 06-14-11 at 06:18 PM.

Thread Tools
Search this Thread
Ask a Question
Question Title:
Your question will be posted in: