Careful_Square1742

Careful_Square1742 t1_j6mzmi5 wrote

I wouldn't worry too much - I think the people saying it'll die and you can't get parts are the outliers. I've got one in my house going on year 4 with zero issues beyond a loose nut that was making noise. it'll make heat without issue Friday night when it's crazy cold.

I used to be in commercial HVAC and oversaw installation of literally thousands of heat pump systems in VT. we serviced thousands more and maybe had a dozen lemons. that's a pretty good ratio. parts availability since 2020 has been problematic, but that's across the board from cars to refrigerators. it's getting better. overall, heat pumps are pretty reliable if you take care of them.

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Careful_Square1742 t1_j6mkuy6 wrote

depends how you're set up. ducted heat pumps can run down to sub-zero temps. When paired with a condensing gas furnace (LP or natural), the heat pump shuts off and switches to fossil fuel around 20 degrees, meaning heating above 20F is done by the heat pump which is incredibly efficient.

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you're probably thinking of electric resistance heating (like a giant toaster). Those aren't even allowed in VT anymore in commercial buildings under VT Energy Code (except VERY specific cases).

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Careful_Square1742 t1_j6idwu6 wrote

do you use a boiler (hot water) or furnace (hot air)? have propane for a stove?

heat pumps are fantastic if you have adequate power available for them. yes, there are supply chain issues currently for parts, but that's the same across the board right now. don't listen to the nay-sayers - a fair amount of new construction is going 100% heat pump heating here, often without backup heat sources. my Daikin system chuges along fine at -15f

a cheaper solution may be to switch to a propane condensing gas boiler/furnace. your oil unit is is likely around 80-83% efficient. meaning for dollar of oil you burn, 20 cents is going up the chimney instead of into your home. condensing gas appliances, when properly sized/installed are as high as 98% efficient. there's fewer BTU/gallon in propane vs oil, but the efficiency more than makes up for it

oftentimes your fuel supplier will set a propane tank for free/cheap, and a propane boiler/furnace will be cheaper to install than heat pumps.

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Careful_Square1742 t1_j3qmxmf wrote

lots of variables - insulation, window/door seals/efficiency, furnace or boiler and efficiency of either, wind/solar exposure.

I'm lucky to be on natural gas - I burned 31 CCF last month, which is 3,214,700 btu

that's 35 gallons of propane @ $3.05/gal = $107

that's 23 gallons of #2 fuel oil @ $4.34/gal = $100

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Careful_Square1742 t1_j04ubbb wrote

this is a perfectly accurate snapshot of the VT construction industry right now. if a residential contractor says they can fit you in over the next 6-12 months, they're either bonkers expensive or have horrible references. commercial is a little different, but not much. getting a commercial project from concept to breaking ground is 12-18 months is everything goes perfectly

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