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garyinsocal

Air Conditioning system decision in So Cal

GaryInSoCal
10 years ago

I am replacing an old Trane 5 ton air conditioner and Lennox furnace. I live in southern california 15 miles from the beach. We use the air a lot for 2 months in the summer. Our house is a 2 story 2,800 sq house, (built in 1986) with no shade and about 30 windows(newer dual pane). 2 contractors made bids to just swap out the current units. A 3rd contractor said we should move the furnace to our attic, re-do our duct work and run 2 zones(up/downstairs) using a Lennox XC21 (maybe 4 ton, probably a 5 ton). He seemed the most knowledgeable and spent the most time and was willing to come back and do the calculations to determine the proper duct work and units. But the duct work and attic relocate would be about $4,200 and I'm having trouble justifying spending that amt. Does anyone think that would be worth it? His other prices are inline with the others.