We're about to close escrow on a new house that has two forced-air
heater/air conditioner units and two thermostats. I don't quite see
how this is going to work.
One unit is for the master bedroom, guest room, and their bathrooms,
I'm told, and the other unit is for the rest of the house (one story).
The house is L-shaped, with the master bedroom, and one thermostat, at
the end of one piece, and the guest bedroom at the end of the other
piece. The thermostat for the rest of the house is right at the
corner of the L.
Is this going to be comfortable? How do we set the thermostats up for
this? I'm told we'll save money with the two-zone system, but I'm
having trouble seeing how.
I assume I should start warming the bedrooms up from the night setback
earlier than the rest of the house, to warm up the bathrooms and make
it easier to get out of bed. And I can start the night setback
earlier for the bedrooms, to start them cooling down for sleep.
What about running the two at different temperatures? The master
bedroom has 8-foot double doors and the guest room has a regular-sized
single door, so I think there won't be a lot of mixing. There are
returns in both of the bedrooms, too. The returns for the rest of the
house are nearer to the L, in the center of the house.
Mary Shafer Retired aerospace research engineer
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