New house build, ICF block, approx 3000sf, with two guest bedrooms and in-between bath on a second story. Includes master bedroom and flanking master baths below guestrooms upstairs, plus large family room opening to screened porch, lakeside (humidity a significant concern, hence both quotes reflect two speed compressors and VS air handlers). Kitchen, small butler's pantry, dining room, two offices, small workshop, laundry room and central hallway bi-secting home from garage and front door entrance to far end/family room & porch. Electrical and plumbing already in place.

Both quotes include installation of three Fantech PB-270H dual grill exhaust fans and two PB-110 exhaust fans, as well as attic-mounted 1266cfm range hood exhaust fan and silencer on infinitely variable switch at hood. Cost of fans about $1600, not including Fantech recommended mounting hardware and timer switches for all bath and workshop fans, but all part of quote. All to be installed per manufacturer's guidelines, incl. insulated ducting. Manual J calcs conducted for heat pump system.

Upstairs:

Bryant Evolution Two Speed 286BNA02400

Infinity Variable Speed FE4ANF002T00

1st floor Master BR and baths, entire 2d floor. Infinity controller for main thermostat (MBR) and Edge Pro for 2d floor zone.

Downstairs:

Bryant Evolution Two Speed 226ANA036000

Performance Variable Speed FV4CNF005T00

Outside air will be ducted from exterior and controlled by a barometric bypass damper to mix with ducted return air to unit. Carrier Edge Pro Thermostat located in first floor common area.

Both systems include MERV 11 filter cabinet adnd filter located below air handler at return intake.

$19,900

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Second quote.

Upstairs and MBR/baths downstairs.

Carrier Infinity 25HNA924 2 ton, 17.9 SEER, 8.5 HSPF, 5K Aux heat

Carrier Infinity FE4ANF002 VS AH

Thermostat SYSTXCCUID01

Downstairs main house.

Carrier Infinity 25HNA948 4 ton, 164. SEER, 9.8 HSPF, 5 K Aux heat

Carrier Infinity FE4ANF005 VS AH

Thermostat SYSTXCCUID01

Same fan installations as first quote, including all ducting.

$21,500

Look forward to some of our resident professionals weighing in on this expensive (but challenging) system. Thanks very much.