New answers tagged heat-pump
3
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Can heat pump completely replace natural gas furnace
Depends on how old and cruddy the heat pump design they're offering is.
Technology Connections covers this in their heat pump series. The old-guard American makers like Trane and Lennox are not happy ...
-6
votes
Can heat pump completely replace natural gas furnace
"Can heat pump completely replace natural gas furnace" Generally yes but maybe no. If your ambient temperature goes below freezing outside probably no. If the outside never goes below ...
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0
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Is it possible to upgrade A/C to a heat pump by only replacing outside unit?
The indoor unit’s plenum coil is a reasonably high quality aluminum coil. part number is incomplete, it’s been truncated leaving off details like which expansion valve it contains. There has to be a ...
0
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How effective is a heat pump for AC and a heat pump/furnace for heating in New England?
It depends on where you are in New England. Darien CT and Lyme NH aren’t similar climates. Where I live the air temperature drops to -30°F and the ground water from my well is in the 40’s year round. ...
1
vote
Can I keep my existing ductwork when replacing a furnace with a heat pump and air handler?
Yes, an air handler will be the same size or smaller than a furnace that has the same heating capacity. The same heating capacity will use the same size blower and the air handler’s heat exchanger is ...
0
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Must a 4 ton variable speed air handler use a 4 ton heat pump?
It depends on the details of the system of interest. Some brands will communicate and limit the air handler to the available capacity, some will assume matched capacity and underperform like a ...
1
vote
Oil Hydro Air & Heat Pump Efficiency
Take the price of 1kWh of fuel, divide by 0.85 which is your efficiency: that's the price of 1kWh of heating with fuel. Since it is usually billed by volume, you'll need the energy density which is ...
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2
votes
Accepted
Can a heat pump designed for mini-split system be used for central AC ductwork?
There are many types of mini-split systems. The more familiar use of that term is when referring to a wall-hung ductless indoor unit; however, mini-splits are not limited to ductless indoor units. ...
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0
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How do I handle two wires on W2 terminal block of old thermostat when moving to new thermostat?
Through some research and looking a bit closer I've discovered what the two wires are which are connected to the same terminal block (black & tan on the far left, labeled W2 in my picture).
The ...
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1
vote
Accepted
Heat pump, when it's not very cold, don't want to use auxiliary heat, is this controlled by thermostat?
I discovered that the thermostat I was looking at RTH2300B does not support a heat pump with multistage (heat pump and auxiliary heat).
I found a doc on honeywell site that states:
Once I got the ...
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