Cold-Climate Heat Pump & Ductless Mini-Split Solutions Long Island
Last updated Reviewed by Waseem Shahzad, Lead Technician
Ducted and ductless cold-climate heat pumps that heat and cool your whole home.
Heat pump service covers installation, repair and maintenance of ducted and ductless cold-climate heat pumps that both heat and cool your home. It suits Long Island homes without ductwork, additions and anyone replacing an oil boiler; a single-zone install usually takes about a day, and cost depends on the number of zones, line-set length, electrical work and wall construction.
The Future of Home Comfort: Cold-Climate Inverter Heat Pumps
A heat pump heats and cools the house with one outdoor unit. Cold-climate inverter models keep producing heat well below freezing, so they can carry a Long Island home through winter, and the same system handles cooling in summer. How much they save depends on what they replace: oil, propane and electric baseboard usually cost more to run, while a newer gas system can be close.
Whether you are seeking a multi-zone ductless mini-split system for a Cape Cod or ranch home without existing ductwork, or a high-performance central ducted heat pump to replace an aging furnace and AC condenser, we size the system to your house after a load calculation and quote it after we see the home.
Comparing Cold-Climate Heat Pumps, Gas Furnaces & Oil Boilers
Evaluate operational efficiency, fuel sources, cooling versatility, and utility incentives across Long Island heating systems:
| Feature | Cold-Climate Heat Pump | High-Efficiency Gas Furnace | Hydronic Oil Boiler |
|---|---|---|---|
| Primary Energy Source | Electricity (Inverter Drive) | Natural Gas (National Grid) | Delivered Heating Oil (#2 Fuel) |
| Seasonal Efficiency | 250% to 400% COP | 90% to 98% AFUE | 80% to 86% AFUE |
| Summer Cooling Capability | Yes (Built-in High-SEER2 AC) | Requires Separate AC Condenser | None (Requires Separate System) |
| PSEG Clean Heat Rebates | Qualifying models may be eligible (confirm at psegliny.com) | Ineligible for Electric Clean Heat | Ineligible |
| Sub-Zero Winter Operation | Heats reliably down to -13°F | Unaffected by outdoor temperatures | Unaffected by outdoor temperatures |
How Inverter Heat Pumps Work: Moving Heat Rather Than Burning Fuel
Traditional heating equipment generates heat by burning fossil fuels like heating oil or natural gas, an inherently inefficient and carbon-intensive process. Heat pumps operate on an entirely different thermodynamic principle: they do not create heat; they move heat. Utilizing advanced variable-speed inverter compressors and eco-friendly refrigerants, an outdoor heat pump absorbs ambient thermal energy from outside air, even in sub-zero freezing weather, compresses it to high temperatures, and transfers it into your living spaces.
Because moving heat requires significantly less energy than generating it, high-efficiency heat pumps achieve coefficients of performance (COP) between 2.5 and 4.0. That means for every single dollar of electricity consumed, the system generates between $2.50 and $4.00 worth of usable heat. In the summer, the reversing valve shifts instantly, expelling heat from your home just like a high-efficiency central air conditioner.
Ductless Mini-Splits: Ultimate Room-by-Room Zoning Control
One of the greatest advantages of ductless mini-split heat pumps is precision multi-zone temperature control. In a traditional centralized HVAC system, a single thermostat in the hallway dictates the temperature for the entire home, creating uneven hot and cold spots. With a multi-zone ductless system, each room or living area features its own indoor air handler with a dedicated handheld or wall-mounted digital thermostat:
Planning a ductless system for an addition, attic or a home without ducts? Our ductless mini-split installation page covers single-zone and multi-zone layouts, what drives the installed cost and how long the work takes.
- Wall-Mounted Units: Sleek, low-profile designs that blend smoothly into any décor, offering automated 3D airflow vanes that distribute warmth or cooling evenly throughout the room.
- Floor-Mounted Consoles: Excellent for rooms with low knee-walls or cathedral ceilings, floor units provide optimal heating distribution right at floor level, mimicking traditional radiators.
- Ceiling Cassettes: Recessed flush between standard ceiling joists, ceiling cassettes offer subtle, multi-directional airflow without taking up any wall space.
- Slim-Duct Concealed Air Handlers: Hidden above ceilings or in closets, slim-duct systems connect to short duct runs and discreet architectural grilles for a completely concealed appearance.
Exceptional Utility Incentives: PSEG Long Island Clean Heat Program
Transitioning your home to energy-efficient heat pumps is strongly incentivized on Long Island. PSEG Long Island's Clean Heat program offers rebates on qualifying cold-climate heat pumps, and whole-home conversions can qualify for meaningful savings. Rebates are claimed through a PSEG Long Island participating contractor or directly with PSEG Long Island, and amounts and eligibility change, so confirm current terms at psegliny.com. The federal 25C tax credit ended for equipment installed after December 31, 2025.
We size the system, explain the equipment specifications PSEG's program asks about, and walk you through heat pump financing so you can compare the real out-of-pocket cost before you commit.
Already have a heat pump that isn't heating right? See heat pump and mini-split repair. Want to keep your boiler or furnace as backup? See dual-fuel heat pumps.
What Do K2's Heat Pump Jobs Cost?
In K2's billing from January 2022 to October 2026, 39 ductless heat pump (mini-split) repair calls had a median of $530, and the middle 50% of customers paid $435 to $741. Read that as an estimate based on what customers paid, not a quote; the part that failed decides where in that range your repair lands.
Installs vary far more. Across 8 ductless heat pump installs in the same records, the median was $8,291, with individual jobs from $2,950 to $26,077, depending mostly on the number of zones. Our records do not yet hold enough ducted heat pump installs to quote a figure, so for planning a whole-house system use the Cost Estimator range of $6,000 to $15,000 for a replacement, explained in our heat pump cost guide. Every install is quoted in writing after we see the house. For incentives, see the 2026 Long Island heat pump incentive guide, and to compare running costs, the heating cost calculator. Whole-house heat pump homes can qualify for PSEG's winter heating rate; see Rate 580 explained. Baseboard homes can read about air-to-water heat pumps.
Engineered for Long Island Coastal Environments
Coastal Long Island environments expose outdoor HVAC equipment to airborne salt spray, winter sleet, and driving rain. Outdoor heat pump coils can suffer severe galvanic corrosion if not properly protected. K2 installs equipment featuring factory-applied anti-corrosion blue-fin coil coatings, snow stands that improve units above deep winter snowdrifts, and wind baffles that prevent cold winter gales from disrupting defrost cycles.
Whether you need a single-room ductless split for an unconditioned sunroom or attic, or a complete whole-home fossil-fuel displacement system, our technicians handle the full installation. We calculate heating load balances at sub-freezing design temperatures, size electrical circuits to code, and place each indoor head where it will not blow straight at people.
Heating with oil now? Our oil to heat pump conversion page covers ducted, ductless and dual-fuel options for oil-heated homes.
To find out whether a heat pump fits your house, call (631) 414-7141 or book a visit online. We look at the home, the current system and the electrical panel, then give you options and prices.
Using mini-splits for winter heat? See ductless heating.
Key Features & Benefits
- Cold-Climate Heat Pump Technology Operates Down to -13°F and Below
- All-in-One Year-Round Heating and High-Efficiency Air Conditioning
- Ductless & Ducted Configurations for Every Architectural Layout
- Cold-Climate Models That Heat Through Long Island Winters
- Multi-Zone Independent Room Temperature & Comfort Controls
- Inverter-Driven Variable-Capacity Compressors for Ultra-Low Energy Use
- Manufacturer warranty registration help, see /warranty
Frequently Asked Questions
Do heat pumps work effectively during freezing Long Island winters?
Yes, modern cold-climate inverter heat pumps operate efficiently down to -13°F and below. Rather than relying on inefficient electric strip heating, advanced variable-capacity compressors extract ambient thermal energy from freezing outdoor air and deliver full heating capacity throughout severe Long Island winter freezes. Call (631) 414-7141 to learn more.
How much can I save with PSEG Long Island Clean Heat rebates?
Qualifying cold-climate heat pumps may be eligible for PSEG Long Island Clean Heat rebates. Rebates are claimed through a PSEG Long Island participating contractor or directly with PSEG Long Island, and amounts and eligibility change, so confirm current terms at psegliny.com before you plan the project. K2 is not a PSEG participating contractor and does not file rebate applications.
What is the difference between ducted and ductless heat pumps?
Ductless heat pumps use compact wall, floor, or ceiling air handlers connected to an outdoor condenser via small refrigerant tubing, providing independent room zoning without ductwork. Ducted heat pumps connect directly to existing central sheet metal ducts, replacing traditional furnace and AC setups with a single year-round electric system.
Can I keep my existing boiler when installing a heat pump?
Yes, many Long Island homeowners maintain their existing hydronic boiler or furnace as a dual-fuel hybrid backup. The cold-climate heat pump efficiently handles primary heating and summer cooling during typical seasonal weather, while your existing system remains connected for extreme sub-zero emergencies or supplemental comfort. Call (631) 414-7141 to evaluate hybrid options.
How does a heat pump provide both heating and cooling?
A heat pump contains a four-way reversing valve that reverses refrigerant flow. In summer, it absorbs indoor heat and expels it outdoors like a standard air conditioner. In winter, the cycle reverses, extracting outdoor atmospheric heat and transferring it inside to provide comfortable, energy-efficient warmth throughout your home.
Areas We Serve
K2 provides heat pumps & mini-splits for homes within 15 miles of our shop at 60 S 2nd St, Unit V in Deer Park, across western Suffolk and eastern Nassau County. Local guides for our main towns:
- Deer Park, NY
- Huntington, NY
- Babylon, NY
- Islip, NY
- Smithtown, NY
- Commack, NY
- Hicksville, NY
- Levittown, NY
- Massapequa, NY
- Farmingdale, NY
- Bay Shore, NY
- Brentwood, NY
- Central Islip, NY
- Sayville, NY
- Hauppauge, NY
- West Babylon, NY
- North Babylon, NY
- Lindenhurst, NY
- Amityville, NY
- Copiague, NY
- Dix Hills, NY
- Melville, NY
- Huntington Station, NY
- Plainview, NY
- Bethpage, NY
- Massapequa Park, NY
- Syosset, NY
- Wyandanch, NY
- Wheatley Heights, NY
- West Islip, NY
- Brightwaters, NY
- Elwood, NY
- Old Bethpage, NY
- Greenlawn, NY
- South Farmingdale, NY
- Islip Terrace, NY
- East Islip, NY
- Kings Park, NY
- Northport, NY
- Ronkonkoma, NY
- St. James, NY
- Oakdale, NY
- Holbrook, NY
- East Meadow, NY
- Oyster Bay, NY
- Cold Spring Harbor, NY
- Lloyd Harbor, NY
- Bohemia, NY
- Jericho, NY
- Woodbury, NY
- Brookville, NY
- Wantagh, NY
- Seaford, NY
- Bellmore, NY
- Plainedge, NY
- Islandia, NY
- Centerport, NY
- Great River, NY
- Nesconset, NY
- Lake Ronkonkoma, NY
- West Sayville, NY
- North Bellmore, NY
- Bayport, NY
- East Northport, NY
We also serve Village of the Branch, Huntington Bay, Asharoken, Muttontown, East Norwich, Nissequogue, Salisbury, North Merrick, Eatons Neck, Head of the Harbor, Upper Brookville.
Protecting the manufacturer warranty
New equipment often needs to be registered with the manufacturer within a set window to get its full parts coverage, and maintenance records can matter for a claim. See how manufacturer warranties work.
K2 also stands behind its own installation work: if a problem traces back to how we installed something, we come back and correct it. See K2 workmanship coverage.
Troubleshooting before you call
Recent heat pumps & mini-splits jobs

Basement mini-split: restarted, outdoor coil cleaned
Dix Hills · Mini-Split Service · June 2026
A basement mini-split had stopped working. It started normally on the visit; we cleaned the dirty outdoor coil and confirmed the refrigerant level.

Mini-split not cooling with a flashing light: filters and coil cleaned
Babylon · Mini-Split Service · May 2026
A three-year-old mini-split was not cooling and flashing its operation light. Dirty filters and a dirty outdoor coil were cleaned; refrigerant was good.

Two old systems replaced with a Daikin multi-zone mini-split heat pump
Huntington · Mini-Split Installation · May 2026
Two old indoor air handlers and outdoor units were removed and replaced with a Daikin multi-zone mini-split heat pump, plus a new drain pump.
More heat pumps & mini-splits jobs: Leaking mini-split: drain line cleared and outdoor coil cleaned (Commack)
Related Guides
Written by our technicians for Long Island homeowners:
Other HVAC Services
All ServicesNeed Heat Pumps & Mini-Splits?
Contact K2 Cooling & Heating today for a free upfront estimate or 24/7 emergency service.