Cost-Effectiveness of a Heat Pump
I have a new house in progress with three “air” systems (a, b, c) and four heating systems (A, B, C, D).
(A) The main “heating only” system includes four in-floor zones and one Electro Industries Midsize Boiler Model EB-MX-15.
(B) There is a traditional furnace with ducts going to and coming from all rooms with a 1.5 KW plenum heater.
(C) is an optional Heat Pump.
(D) Also planned is a propane heating stove which fulfills the dual-fuel requirement for cheaper electricity for space heating.
(C and D) are not yet installed.
(a) One “air only” system includes three bathroom exhaust fans, one range hood exhaust fan and one make-up air flex duct open to the outside.
(b) Another “air only” system includes a down-drafting ceiling fan over the stairs and (when a laundry cabinet is open) an up-drafting laundry chute in the bathroom at the other end of the house.
(c) A third air system includes the HRV which shares some of the duct work for (B).
(a) and (c) introduce fresh outside air into the structure.
(1) Would it be cost effective (via reduced heating cost) to install (C) which would interface with (B) via the “A coil”?
(2) How would I estimate how long it would take for (C) to repay for its installation in reduced heating cost?
Thank you for your interest.
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