A different kind of heat pump.
Air-to-Water Heat Pumps on Long Island
Air-to-water heat pumps are a different kind of heat pump. Instead of sending refrigerant to wall heads or ducted air handlers, they make hot or chilled water that can serve hydronic heating and cooling systems.
What Is an Air-to-Water Heat Pump?
An air-to-water heat pump moves heat from outdoor air into water. In heating mode, that hot water can be used for hydronic space heating. Depending on the design, the system may also support cooling and domestic hot water.
That makes air-to-water different from the heat pumps most homeowners see advertised. Ductless mini-splits heat and cool air directly. Air-to-water heat pumps serve water-based systems, which makes them especially interesting for boiler homes.
How It Differs From a Traditional Boiler
A boiler burns fuel to heat water. That fuel may be oil, natural gas, or propane.
An air-to-water heat pump uses electricity to move heat instead of creating heat by combustion. The home can still use water-based distribution, but the heat source changes.
For Long Island homeowners with older oil boilers, that creates a bridge between familiar hydronic comfort and electrification.
How It Differs From Mini-Splits
Mini-splits can be excellent, but they are not the only heat-pump option.
A ductless mini-split usually serves a room or area with an indoor wall, floor, or ceiling unit. An air-to-water heat pump can work through hydronic distribution, which may include radiators, baseboard, radiant floors, hydro-air, or fan coils.
For homeowners who do not want visible heads in every room, air-to-water may be worth reviewing.
Where Daikin Altherma Fits
Daikin Altherma is an air-to-water heat pump system built for homes that need more than a standard ductless layout. It can be considered for boiler replacement, radiator or baseboard homes, radiant floors, hydro-air systems, and projects where domestic hot water integration matters.
It still needs proper design. The installer has to understand the home, the radiation, the water temperatures, the electrical requirements, and the homeowner's goals.
Worth Exploring
Long Island Homes That May Be a Fit
The PSEG Rebate on an Air-to-Water Conversion
A whole-home air-to-water heat pump conversion qualifies for the PSEG Long Island heat pump rebate. It is one flat rebate, not a menu of programs to combine: $4,000 for most homes, $5,000 if your address is in a disadvantaged community or your household is moderate income, and $7,500 for income-qualified households.
PSEG sets the eligibility tiers, not us, so we will not guess which one applies to your home before we look at it. What we can tell you: PSEG offers a direct-pay option, so the rebate can come to us instead of you fronting it and waiting on a check.
Common Questions
Air-to-Water Heat Pump FAQ
An air-to-water heat pump moves heat from outdoor air into water. In heating mode, that hot water can be used for hydronic space heating. Depending on the design, the system may also support cooling and domestic hot water.
A boiler burns fuel to heat water, whether that fuel is oil, natural gas, or propane. An air-to-water heat pump uses electricity to move heat instead of creating heat by combustion. The home can still use water-based distribution, but the heat source changes.
A ductless mini-split usually serves a room or area with an indoor wall, floor, or ceiling unit. An air-to-water heat pump can work through hydronic distribution, which may include radiators, baseboard, radiant floors, hydro-air, or fan coils. For homeowners who do not want visible heads in every room, air-to-water may be worth reviewing.
Oil boiler homes, gas or propane boiler homes, radiator or baseboard homes, radiant floor systems, and hydro-air systems. It is also worth reviewing for homeowners planning electrification, homeowners who want cooling added without mini-split heads everywhere, and homes where domestic hot water integration is part of the plan.
A whole-home air-to-water heat pump conversion qualifies for the PSEG Long Island heat pump rebate. It is one flat rebate, not a menu of programs to combine: $4,000 for most homes, $5,000 if your address is in a disadvantaged community or your household is moderate income, and $7,500 for income-qualified households. PSEG sets the eligibility tiers, not us, so we will not guess which one applies to your home before we look at it.
Start With the System You Already Have
Patchogue Heating and Air Conditioning starts with the home, not a generic package. We look at the heating system already in place and explain whether an air-to-water heat pump makes sense.
Related: Daikin Altherma hub · Oil boiler conversion · Heat pumps for radiators · Altherma cost factors
What's my heat pump rebate?
See what homes like yours are getting
Most Suffolk County homeowners qualify for a $4,000 PSEG rebate on a whole-home heat pump. Homes in a disadvantaged community, or moderate-income households, get $5,000. Income-qualified homes get $7,500. We confirm your exact tier before you commit to anything.
Addresses in a disadvantaged community qualify for the $5,000 tier. Check yours on New York State's official map.
Think you may be income-qualified? You can check with Energy Finance Solutions.
Other Services
More Ways We Can Help
Oil Boiler to Heat Pump
Replace an aging oil boiler with a Daikin Altherma air-to-water heat pump.
Heat Pumps for Radiators
Air-to-water heat pump systems that work with radiators, baseboard, radiant, and hydro-air.
Daikin Altherma Cost
What affects the price of a Daikin Altherma conversion on Long Island. No fake package pricing.
Ductless Mini Splits
Zone-by-zone comfort for homes without ductwork.
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