Reply by OSU55

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Posted on HVAC questions to the Pro's

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2504 posts in 2596 days

#1 posted 11-15-2018 01:13 PM

There ar t-stats available that turn on just the fan for an amount of time, say 10 min, every hour to prevent hot and cold spots. Also important how the heat stages are wired for a heat pump. Only 5kw is needed for makeup, then an additional 10-15kw available for 2nd stage and emergency. Mine is wired this way so that minimal resistance heat is used and the heat pump does the manority of the work plus prevents the big hot blast, and saves $. The 5kw is all that ever comes on even in single digit weather. Improper t-stat locations create lots of issues. An oversized variable speed unit = burning $ bills.

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