Getting quotes on buying/installing new heat pump for 1300 sq. ft. townhome. Existing unit is 1.5 ton 18-year old Trane Weathertron (builder grade?), probably 10 SEER when new. Unit has Freon leak down inside the air handler:
- Company #1 recommended new unit. He priced us $ for Ducane and $ for Trane (didn't give model numbers, didn't do load calc, etc.).
- Company #2 priced us Trane XB13, XR13, and XR15 from low to high, but no load calc
- Company #3, who provided excellent service and performed free load calc said we need to go up .5 ton to a 2-ton unit. They sell Bryant only.
I'm a little surprised that Company #3 wants to increase the tonnage, when we first discussed that it's possible our flexible hose ducting that runs under the floor boards (between the first floor ceiling and second level floor) can't handle the extra tonnage. Is it common for the original builders to install a heat pump that's too small?
I think Company #3 is pricing us too high ($ for 2-ton), so I've asked them to give me prices on 1.5 units...we'll see.
Thoughts? Do you think increasing .5 ton is really critical?