need advice re HVAC system
Hello, looking for advice, as I know nothing about HVAC systems.
Due to lot size and other factors, we are building a narrow but long addition that includes a basement and two floors, with about 6 registers per floor.
Existing house - one floor, ancient A/C compressor, relatively new gas furnace
Location - MD suburbs near DC, so hot and humid summers
Builder recommended a separate HVAC for addition. I believe that the first one below was the one recommended initially. The second one was in response to our request for a system that would not break the bank due to emergency heat pump use when the winter temps dropped (and no backup heat for addition). HVAC would be in the basement. Please note that we do already have gas -- would just have to run a line to the basement.
Which one would you recommend and why, and which options? Looking for comfort and efficiency over the long run, with an eye on our growing renovation expenses. Any feedback is greatly appreciated! Thanks!
Ã¯Â¿Â½ Installation of new heat pump duct system with new Carrier 2.0 ton Puron
R410a air handler model # FB4CNF024 with 8 kw heater and new Carrier
heat pump model # 25HCD324A003 rated at 13 SEER and 2.0 tons. New
programmable thermostat to be installed.
Ã¯Â¿Â½ Price includes above equipment, labor, taxes, permit, power wiring,
control wiring, slab, refrigeration piping, sheet metal work, drain piping,
registers, grilles, and warranty.
Ã¯Â¿Â½ All power wiring and gas piping by others.
Ã¯Â¿Â½ All labor and material guaranteed two full years. All parts and compressor
guaranteed ten years. total for this equipment.............$10,000.00
Ã¯Â¿Â½ Carrier 15 Seer heat pump $ 600.00 Extra.
Ã¯Â¿Â½ Carrier variable speed air handler $ 600.00 Extra.
Ã¯Â¿Â½ Carrier Infinity 2 stage heat pump wI Infinity air handler & Infinity wifi
thermostats $3000.00 Extra.
. Ã¯Â¿Â½ Installation of new duct system for new addition with new Carrier 92%
efficient gas-fired warm air furnace model # 59SC2B040S14-1t0, Carrier
cooling coil model # CNPVP2414ALA and new Carrier alc model #
24ABB342A003. (13.0 SEER; Puron; 2.0 Tons; 10 year compressor
Ã¯Â¿Â½ Price includes above equipment, labor, taxes, permit, control wiring, slab,
drain piping, flue piping, refrigeration piping, registers, grilles, sheet metal
work, and warranty.
Ã¯Â¿Â½ All labor guaranteed two years. AlC compressor and parts guaranteed 10
years. Furnace heat exchangers guaranteed twenty years.
Total Cost for this equipment : $ 10,950.00
Ã¯Â¿Â½ Carrier 16 SEERAIC $ 600.00 Extra.
Ã¯Â¿Â½ Carrier Infinity 96% Efficient 2 stage gas furnace wi Carrier Infinity 2
stage Ale & Infinity wifi thermostat $3200.00 Extra.