Just moved into a new house. builders grade nordyne system with single speed blowers. SEER 13. installed offered to replace both single speed blowers with a variable speed blower saying increase to SEER 14. cost is $ each blower plus $ for a top of the line honeywell thermostate.
Is this worth it? what benefit will I get?
I run the blowers 24/7 and the system is fairly loud with air noise.