Current carrier equipment is 11 years old and were baseline equipment(ie no high efficiency). Gas furnace usually warms the house OK but gas bills are very expensive. In addition, it also has been flashing a 33 error code every once in a while but not every time it fires. AC had been serviced a number of times over the last few years and has struggled to cool the house. I was thinking it was going to need to be replaced either this year or next.
I have had three quotes. Each has said it makes more sense to replace both AC and furnace. They are suggesting top of the line Infinity ICS Furnance and Inifinity 21 AC unit. We have substantial rebates from state, IRS, gas company and Carrier.
Does this approach make sense? I can see replacing the AC but I feel like the furnace might have more life in it.
With the down economy, how much should I push back in negotiating the original quotes?