Quote:
Originally Posted by stevehull
...But here is a case where designing the system to the maximum is a design $ mistake. But LOTS of installers will do it to make more money...
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I've hung out on some of the HVAC forums, and the "oversize" lore seems to be from the gas furnace and oil furnace days, and it is to
prevent call-backs, so in that sense they are aiming to make more money... plus some incremental increase from the price of a larger unit, as you inferred.
-AC