SMALLER is better (I know – counter intuitive), for a lot of reasons:

I find a lot of people are unhappy with recently replaced equipment.  Usually this is because they made the mistake of “going one size up” or worse, didn’t have the equipment sized at all.   HVAC equipment is like running shoes, the better the fit the more comfortable and efficient it is to run.


There is a lot of “fudge” factor in heat loss  calculations.  For greatest efficiency and comfort they should have gone one size DOWN.  Over sized equipment means challenges to balance, control, efficiency, humidification, and dehumidification.

MORE SOON – if you have questions about this or any post please call me.

  • Liz

    Another good article – instead of Smaller is Better they say More is Worse.