Finalizing HVAC upgrade
Please help me decide on a new heating and cooling solution.
Current system: 1995 oil furnace w newer AC coils
Goal: Reduce heating costs while staying comfortable.
House: large house (1950) w/uninsulated stone walls, CZ4. Envelope upgrades nearly complete, so the below heating load calcs will come down slightly. (The cooling loads are all much lower.) Design temp 17*, interior temp 70*.
Basement (800sqft): 12,000 BTUH
First floor (2700sqft): 45,000 BTUH
Second floor (900sqft): 13,000 BTUH.
Plan: High efficiency heat pump w/electric backup. If needed, add mini split to second floor in future. Two options below from highly regarded installers. I have a quote for a Trane XV18 also, but cannot copy+paste the details.
OPTION ONE: CARRIER
Install One (1) Carrier Infinity variable speed air handler #FE4ANF006
Install One (1) Carrier Infinity Greenspeed heat pump #25VNA060A, 60,000 BTU, 18 SEER
Install One (1) Carrier Infinity wifi programmable thermostat
Install One (1) Carrier 20 kw electric heater
Install One (1) Condensate removal pump
Install One (1) Return plenum box
Install One (1) Cladlite outdoor pad
Install One (1) Outdoor service disconnect box
Remove old equipment
OPTION TWO: LENNOX
Provide one Lennox XP20 5.0 ton 20 SEER Heat Pump with Inverter Variable Speed Capacity
Heating & Cooling model # XP20-060230. Provide one outdoor pad.
Provide one Lennox air handler model #CBA38MV-060-230 with variable speed blower.
Provide one Lennox 20 kW heater ECB38-20CB with necessary electrical components.
Provide one LCD touch screen iComfort communication Wi-Fi thermostat model #S30
Provide necessary hard galvanized supply and return ductwork to connect to new furnace.
Provide necessary low voltage wiring. High voltage by others.
Provide necessary drain piping and drain to the outdoors.
Provide new copper piping to connect the new outdoor unit.
Start up and check system operation.
OPTION THREE: TRANE
Install Trane variable speed indoor air handler Model TEM8A060 on return stool
Install 10 KW heater (60 ampere, 220 volt circuit; 60 ampere, non-fused disconnect
Install Trane variable speed high efficiency heat pump Model 4TWV8060, 5 ton, 18 SEER on fiberglass pump ups
Install all necessary high and low voltage wiring (T-CON 850 Communicating HP thermostat)
Install Aprilaire Merv 11 air cleaner
Install new condensate pump
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