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-   -   66,000 vs 70,000 BTU (http://www.diychatroom.com/f17/66-000-vs-70-000-btu-135563/)

Jasons10 03-01-2012 11:29 AM

66,000 vs 70,000 BTU
 
Is there a big difference between 66,000 and 70,000. I paid for a 70,000 BTU and after the install I looked at the Specs inside the furnace cover and the BTU's are listed at 66,000/58,000 (could be wrong about the lower number but it's close to that). There was a bit of haggling on the price but no mention of installing anything other than 70,000 BTU. My fear is that they went to a cheaper furnace after they agreed to a lower price. Should I be concerned or am I splitting hairs?

veesubotee 03-01-2012 01:57 PM

By any chance, are you looking at the 'output' specs? If the furnace is listed as 94.3 AFUE, those numbers would be correct (66/70 x 100 = 94.3%).

hvac benny 03-01-2012 02:43 PM

Is it a mid-efficient Carrier furnace? I've noticed that, despite have a model number such as 58MCA070, which would denote 70 mbtuh according to how Carrier serial numbers go, they are actually 66 mbtuh or so. Could be the dealer just made a mistake and wrote 70 mbtuh based on the 070 model number designation. No big deal, really, as long as they did a proper heat loss/heat gain (in Canada) or a manual j (what the yanks do), and you're getting the proper output.


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