Obie Comfort Solutions installs ductless mini-split heat pumps across Framingham and the MetroWest area. A ductless mini-split heats and cools without ductwork, using one outdoor unit connected to one or more wall, ceiling or floor indoor units. We are a Mass Save® certified partner, so the equipment we install qualifies for 2026 rebates and we file the paperwork for you.
- Mass Save® certified partner, installing from the Heat Pump Qualified Products List
- NATE certified technicians, Sheet Metal License 593-SM-B
- Family owned in Framingham, serving MetroWest since 2006
- Load calculation before we quote, not a guess based on square footage
Ready to size a system for your home? Call (617) 415-1522 or request an estimate.
What a Ductless Mini-Split Heat Pump Is
A ductless mini-split is a heat pump system with two parts: an outdoor compressor and one or more indoor air handlers, connected by a refrigerant line set that runs through a three inch hole in the wall. There is no ductwork. Each indoor unit is its own zone with its own thermostat, so you heat and cool the rooms you are using instead of the whole house.
The same equipment does both jobs. In winter it moves heat from outdoor air into the house. In summer it reverses and moves heat out. For a MetroWest home with a furnace or boiler but no central air, this is usually the shortest path to whole-home cooling and a second heating source in one install.
Mass Save® Rebates for Mini-Splits in 2026
Massachusetts has the strongest heat pump incentives in the country, and mini-splits qualify. Rebate amounts for the 2026 program year are based on system capacity in tons and on how much of your home the heat pump serves.
| Rebate type | 2026 amount | What it means |
|---|---|---|
| Whole-home | $2,650 per ton, up to $8,500 | Heat pump is the sole heating and cooling source, home must be sufficiently weatherized |
| Partial-home | $1,125 per ton, up to $8,500 | Heat pump serves part of the home alongside an existing system |
| Basic | $250 per ton, up to $2,500 | Supplemental install that does not meet whole or partial criteria |
| Income-based enhanced | Up to $16,000, or no-cost through Turnkey Services | For income-qualified households |
Three conditions decide whether your project qualifies. The equipment has to be on the Mass Save Heat Pump Qualified Products List and meet ENERGY STAR® Cold Climate specifications. It has to be installed in the 2026 calendar year by a contractor in the Mass Save Heat Pump Installer Network. And the rebate form has to be received by February 28, 2027. Whole-home rebates also require proof that the home is sufficiently weatherized before installation, which is why a no-cost home energy assessment comes first.
Financing is separate from the rebate. The Mass Save HEAT Loan offers 0% interest on qualifying equipment, and it can be combined with the rebate. Note that the federal tax credit for heat pumps under the Inflation Reduction Act expired on December 31, 2025, so expenditures made after that date no longer qualify for that credit. The Massachusetts rebates are unaffected.
Mass Save® is a registered service mark. Rebate amounts, eligibility rules and deadlines are set by the Sponsors of Mass Save and are subject to change. Confirm current terms at MassSave.com. See our Mass Save rebate page for details.
How Many Indoor Units Does a Home Need?
One outdoor unit can support one indoor head or several, depending on the model. The right number comes from a Manual J load calculation, not from square footage alone, because insulation, window area, ceiling height and how open the floor plan is all change the answer. As a starting reference:
| Home layout | Typical configuration |
|---|---|
| Single room, addition, sunroom or converted garage | Single zone, one indoor unit |
| Open first floor plus two or three bedrooms | Multi zone, three to four indoor units |
| Older colonial with closed rooms on two floors | Multi zone, four to six indoor units, or a mix of ductless and short ducted air handlers |
| Whole-home replacement of an oil or propane system | Multi zone sized for design conditions, often with a ducted head in the attic or basement |
Oversizing is the most common mistake we correct on systems installed by others. An oversized mini-split reaches setpoint fast, then short cycles, which leaves humidity in the room and shortens compressor life. Correct sizing is also what protects the whole-home rebate, since that rebate is paid per ton.
Mini-Split or Central Ducted Heat Pump?
| Ductless mini-split | Central ducted heat pump | |
|---|---|---|
| Best for | Homes with no ductwork, additions, room-by-room control | Homes with existing ductwork in decent condition |
| Zoning | Every indoor unit is its own zone | One zone unless zone dampers are added |
| Install disruption | Low, no demolition, one to three days | Higher if ducts need modification |
| Visible equipment | Indoor heads on walls or ceilings | Registers only |
| Efficiency loss | None from duct leakage | Leaky or uninsulated ducts waste conditioned air |
Many MetroWest homes end up with a hybrid: ducted air handlers where duct runs already exist, ductless heads in the rooms that were never served well. If you already have ducts, look at our heat pump page and our duct services as well.
Cold-Climate Performance in Massachusetts Winters
The objection we hear most is that heat pumps stop working when it gets cold. That was true of equipment sold fifteen years ago and it is not true of the cold-climate systems Mass Save now requires. Qualifying cold-climate models hold rated heating capacity at 5°F and continue producing heat well below 0°F, which covers nearly every hour of a normal MetroWest winter.
What matters more than the marketing number is design. We size for the Massachusetts winter design temperature, set the backup heat strategy deliberately, and mount the outdoor unit on a stand high enough to clear snow with clearance for defrost drainage. Those three details decide whether the system feels good in January.
What Installation Looks Like, Step by Step
- Home assessment and load calculation. We measure, look at insulation and windows, and run Manual J. You get zone-by-zone capacity, not a rule of thumb.
- Written proposal with rebate math. Equipment options, tonnage, the rebate tier your project falls into, and HEAT Loan financing if you want it.
- Mass Save energy assessment. Required before a whole-home rebate. We tell you how to schedule it and what the weatherization requirement means for your home.
- Permits. Pulled under our Massachusetts licenses. Electrical work is coordinated with a licensed electrician when a new circuit is needed.
- Installation. One to three days for most homes. Indoor heads mounted, line sets run and covered, outdoor unit set on a stand or pad, system evacuated and charged.
- Commissioning and walkthrough. We verify charge and airflow, then show you how to run it. Heat pumps work best on steady setpoints rather than deep setbacks, and that habit change is worth five minutes of explanation.
- Rebate filing. We register the equipment and submit the paperwork rather than handing you a stack of forms.
What Drives the Cost of a Mini-Split Installation
We quote in writing after seeing the home, because the same number of indoor units can differ substantially in labor. The variables that move the price:
- Number of zones and total tonnage. The single biggest factor, and the one the rebate is calculated from.
- Line set routing. A head on an exterior wall directly above the outdoor unit is straightforward. A head on the far interior wall of a finished second floor is not.
- Electrical capacity. Older MetroWest homes with a 100 amp panel sometimes need a service upgrade before a whole-home system.
- Indoor unit style. Wall mounted is standard. Ceiling cassettes, floor consoles and short ducted air handlers cost more.
- Equipment tier. Hyper-heat cold climate models cost more than base models and perform better at design temperature.
If another contractor has already quoted you, we will give a no-cost second opinion on the sizing and the rebate tier before you sign anything. Sizing errors are common and expensive.
Mini-Split Installation Across MetroWest
We install ductless systems in Framingham, Natick, Sudbury, Wayland, Weston, Wellesley, Ashland, Holliston, Hopkinton, Marlborough, Newton, Watertown, Waltham and the rest of our MetroWest service area.
Frequently Asked Questions
How much is the Mass Save rebate for a ductless mini-split in 2026?
Whole-home installations receive $2,650 per ton up to $8,500, partial-home installations receive $1,125 per ton up to $8,500, and basic supplemental installations receive $250 per ton up to $2,500. Income-qualified households can receive up to $16,000 or a no-cost installation through Turnkey Services. Equipment must be on the Mass Save Qualified Products List and installed in 2026 by a participating contractor.
Do mini-splits actually work in Massachusetts winters?
Yes, when the system is a cold-climate model and it is sized for design conditions. Cold-climate heat pumps hold rated heating capacity at 5°F and keep producing heat below 0°F. Mass Save only rebates ENERGY STAR Cold Climate equipment, which is why the program requirement and good practice line up here.
How long does installation take?
A single zone system is usually one day. A three or four zone system typically takes two to three days. Electrical panel work, if the home needs it, adds time and is scheduled with a licensed electrician.
Do I have to remove my furnace or boiler?
No. Many homeowners keep the existing system as backup, which is a partial-home installation. Removing fossil fuel heat entirely moves the project into the whole-home rebate tier, which pays more but requires the weatherization check. We lay out both paths with the numbers side by side.
How noisy are the indoor units?
Indoor heads run in the range of a quiet conversation at low fan speed, and most of the time they run at low speed because inverter compressors modulate instead of cycling on and off. The outdoor unit is the louder component, which is one reason placement matters for bedroom windows and property lines.
What maintenance does a mini-split need?
Rinse or vacuum the indoor filters monthly during heavy use, keep the outdoor unit clear of snow and leaves, and have the system professionally serviced once a year. Annual service includes coil cleaning, condensate line clearing, refrigerant charge verification and electrical checks. Dirty indoor coils are the most common cause of a mini-split that stops cooling well after a few seasons.
Can one outdoor unit run multiple rooms?
Yes. Multi-zone outdoor units support several indoor heads on a shared refrigerant circuit, each with independent temperature control. There are capacity limits per outdoor unit, so larger homes sometimes need two outdoor units. That decision comes out of the load calculation.
Get a Sized Quote, Not a Guess
Obie Comfort Solutions has been installing heating and cooling in MetroWest homes since 2006, and we handle the Mass Save paperwork as part of the job. Call (617) 415-1522 or request an estimate and we will run the load calculation, show you which rebate tier your project falls into, and put it all in writing.
