4 ms·
Seems about accurate, but the variable speed systems are a big QoL upgrade regardless. Just being able to have AC on lower speeds has helped a lot with humidity
by lfowles 4y ago
Seems about accurate, but the variable speed systems are a big QoL upgrade regardless. Just being able to have AC on lower speeds has helped a lot with humidity even when the house doesn't necessarily need cooling. We upgraded last summer from a 3 ton unit to a 3.5 ton unit (max size our ducts would support). It's still struggling to hold 75 when over 100 outside and some upper rooms hit 80, but that's more down to our ducts and layout of the house. The lower humidity and constant (yet inaudibly low) air flow makes it feel much more comfortable at 75 than with the old system.
- criddell 4y agoWhat I want is an oversized system with variable speed but they seem reluctant to sell me an oversized system.
- daggersandscars 4y agoThis is from 2016, but an oversized system can be more prone to having the condenser freeze. Ask This Old House (https://www.youtube.com/watch?v=-33wjzNxgSw https://www.youtube.com/watch?v=-33wjzNxgSw)
- criddell 4y agoThe first time I had my condenser freeze, I called the HVAC company we use and they had me shut off the system for 30 minutes and it started working again. When their tech came out, he found the refrigerant pressure was low so he corrected that and let us know that when it's hot out (105+) don't ask the AC to keep the house at 75 because it will run non-stop and freeze again. That's when I started thinking about buying an oversized system. Thanks for posting this video. It's pretty good, but it raises some questions for me as well (like was the 4 ton system in the video a variable speed system?).