One spring,
a homeowner came to us with an urgent request for zoned comfort control—especially
air conditioning and better temperature control—in the various zones of their
home. Their current propane furnace did not evenly heat the home, and the
master bedroom and downstairs parlor—with a grand piano—were continually at two
different temperature extremes. No cooling was possible at all. A single heat
pump with two heads, one in the master bedroom and one in the front room, were
not able to heat and cool at the same time.
By installing two separate heat pumps, the problem was
solved. We installed a combination system that could provide 90% of the heating
needs, at our outdoor design temperature of 19
degrees F. The
most powerful two-head heat pump, by comparison, was only able to provide 75%
of heating needs under similar conditions. And with the new system, air
conditioning was now possible. The propane-fired furnace was left operational
and our homeowner has reported occasional use under extremely cold conditions.
Overall the homeowner has reported being very satisfied with the new system, with bedroom air conditioning a “Godsend” in the summer!
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