I'm in the process of choosing a company for my furnace and ductwork install. I live in SoCal, if that makes any difference. My one request I have of each representative is that I get to see an example of a residential installation that there company has done.
I just got back from my first one, and I am very glad I took a look! This was the sister in law of the sales rep. She had at least one flex duct run that had popped of the plenum. The flex had very little to grip to on the takeoff, as it was just a crimped ended takeoff - no bump for the flex tie to wrap around. Another used an uninsulated metal elbow... and it appeared to be rusty for some reason.
I know from my readings here that installation counts MORE than the actual equipment used. In this case there was something obvious I could point to.
Next time I go up to look at an installation, I'll be able to see the furnace, the plenum box, the duct connected to the plenum, and maybe some short duct runs. Is there anything I can look for to help me identify a good install from a bad one?
Thanks for any advice you can share!