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I have a Victorian home
that I would not trade for a new home with all the
bells & whistles. I just need some
advise concerning central heat & air.
There is only a small cellar space, and that does
not reach under the entire house. What do
you suggest?
On most old houses, I install two HVAC units.
One in the crawl space/cellar and one within the
attic. The cellar unit can supply air through the
ducts up through the first floor surface. The
attic unit can supply air downward through the
second floor ceiling. Now, as far as what type of
ducts to use, etc.... What I generally recommend
is using a high-velocity system that uses small
ducts that take up little space. This allows for
an easy retrofitting of the system into some of
the typical hard-to-get-into spaces you will
commonly find in old houses. One brand of system
that is quite popular is Unico.
You should have your choice of a heat medium,
such as gas, propane, oil or combine these with a
geo-thermal system that extracts the constant
temperature from the ground as a supplement to
your system. The registers for the Unico system
are quite small and are easy to tuck away in a
corner, a lot easier to deal with that
conventional heat registers that take up a great
deal of space! If you have an existing heating
system, and simply need to add AC, the Unico
system works well with this also. If this is the
case, you should seriously consider adding a
geo-thermal side to this system.
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