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I am a home inspector in Easter North Carolina. Can I get a run down from someone on the following system:
450,000 Btu National US boiler. No further spec plate.
Feeds 3 coils (Crane model...

Thanks in advance for those of you who act as my reference source. I beg another answer.
I inspected a house today with a Frigidaire air handler in the attic, Model B2BM018K-A, Serial...

Can someone set me on the right track. I have trouble with interpreting this model #-CB29M-21/26-1P. 4 years old. Operating fine, just the 21/26 part confuses me.
Thanks in advance.
JLMathis

So I can read most model numbers, but the Ruud/Rheem numbers continue to baffle me. What is a Rheem model RBHA-14J05NFAA?
And on a 52 degree day, is a 10 differential with 80 degrees at the closest...