I've been reading a lot of different posts and keep coming to the same answer - the brand of unit isn't as important as the installation, and therefore selecting the right contractor is vital.
Great idea -- but how does a homeowner, with no HVAC experience, choose the right contractor - and make sure the installation is done correctly?
What should I know to ensure I'm getting a thorough job done? (seen some stories of poorly installed units and claims that the homeowner didn't do their homework - I need help understanding the right homework - have been reading all day and still no closer to understanding what's important and what's just hot air.)
I have a 50 year old house, 1150 SF, pier and beam house in North Texas. The coil in the attic was replaced 2 years ago. The furnace is probably 20 years old and the condensor outside is 13 years old. The duct work is awful and so is the insulation, for that matter. So I'm looking at spending a little cash to replace everything. Necessary?