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Question DetailsAsked on 6/14/2016

what should I pay for a central air unit/furnace combo in Fruitland Iowa 52749

2 level split foyer 1100 sq ft

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Price depends on your area (probably pretty cheap in your area), brandname, efficiency ratings, actual configuration of system, etc. And bear in mind there is almost never (unless ducting / units were mis-sized in the first place) a reason to replace them as a pair unless they both just happen to be aging out at the same time or you have run the numbers and higher efficiency modern units will pay off for you on a life-cycle basis. Rarely the case for both furnace and A/C upgrades to pay off in the long run except in extreme A/C usage AND extreme cold weather areas - which are a rarity - some desert areas and parts of the High Plains and Rockies, but otherwise usually only one unit is heavy-service, or both are more normal service like your area.

A current-efficiency good brand furnace should last on the order of 20-30 years without such major maintenance costs that they would lead you to be thinking of a new one instead of repair, whereas depending on usage an A/C unit can run 10-15, maybe 20 years if you are lucky - but I would not count on it going much beyond 10 in a cost-benefit calculation. So you might replace your A/C 2-3 times during the life of a forced air furnace, and there is little cost savings in putting in the A/C unit at the same time as a new furnace - the installation of the evaporator in the plenum or ducting is a quite small part of the cost of putting in a new A/C system, so I would not consider replacing both at the same time just for operating efficiency, and most vendors do not give you a much better deal on both at one time than on one at a time.

Answered 4 years ago by LCD

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