I need to get a new HVAC. I need both indoor and outdoor units. I have company A proposing a Carrier Comfort Series 14 SEER R-410A condenser with a First Company indoor unit. I have company B proposing an American Standard Silver Series 14 SEER R-410A condenser with First Company indoor unit.

I've done some research and what I've learned is that the most important thing about having HVAC installed is the installer. Most problems occur because the equipment was improperly installed. As far as equipment goes, American Standard and Carrier rate pretty close together.

Here's the thing: Company B's quote is over twice what Company A's is.

Bottom Line: If you have experience with one or both of the manufacturers, I'd like to hear your opinion. Also, I'd like to hear your opinions on HVAC installers in Southern Maryland.