There are a few challenges that i will point out here.
Moving furnace from attic to basement.
Some of them can be code issues while others will relate to the expected headroom and clearances with the duct system.
A furnace in the attic is a design that works for all homes.
Unfortunately in california it is extremely unusual to find a home with a basement so contractors usually install a floor furnace or closet furnace.
You might not receive the same air movement benefits if the unit is in a garage either.
I know anything can be done with enought but was wondering if taking the furnace from the basement and putting it in the attic using the existing flex duct for the a c system was a possibility that.
While this may work well in some homes it isn t the only place where your furnace can.
Not to mention that if you re going to to that you re already doing half the work necessary to redo the ductwork properly to connect the two zones.
Another factor on moving a furnace depending on your model it may well not be convertible or the right flow direction for attic installation for instance a basement or garage mounted unit will commonly be ipflow the heated air comes out the top whereas an attic mounted furnace will usually be side vent the hot air comes out.
But in southern california basements are extremely rare so most homes have floor furnaces a k a.
When you place a furnace in the attic to take advantage of its.
The work you re describing doesn t sound remotely cost effective or effective at all for that matter.
Quite frequently i get asked what is involved with moving a electric or gas furnace to accommodate future development for a basement renovation.
Placing it in the attic where it is closer to the new floors means not having to tear up the basement to provide room for a second furnace.
Basement walls are not insultated and basement is cold walls are old new england field stone but basement is not cold like the attic is.
Some things to consider the usual place you ll find furnaces in homes across the u s.
The new furnace can be built into the attic during construction with access made convenient for the homeowner and air ducts maximized for delivering heat to the new areas efficiently.
Running a huge duct from the basement to the attic will choke off the airflow.