Whole-Home Heat Pump Conversions in Ticonderoga & the North Country
A whole-home conversion replaces your oil, propane or electric baseboard heat entirely with a Mitsubishi Hyper-Heat system sized to carry the house at your town's design temperature — about -10°F in Ticonderoga, colder in the High Peaks. Most designs mix ductless zones with a ducted air handler, run on one or two H2i outdoor units, and heat and cool every room with its own thermostat. Decommissioning the old system puts you in the highest NYS Clean Heat rebate tier, and 18-month 0% financing lets the project cash-flow against the fuel bills it eliminates.
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How a whole-home Mitsubishi system is laid out
A whole-home design divides your house into comfort zones — living areas, kitchen, bedrooms, basement, the sunroom over the lake — and gives each one an indoor unit with its own setpoint. The outdoor unit's inverter compressor varies its output to match whatever the zones are asking for, so you can run the bedrooms cool at night, the living room warm in the evening, and shut off the guest room until company comes. One Mitsubishi multi-zone outdoor unit runs up to eight indoor units; larger homes use two.
Indoor units come in two families and most conversions use both:
- Ducted — a multi-position air handler (SVZ/PVA) sits where the furnace was and serves a whole floor through existing ducts, or a short-run horizontal unit (SEZ/PEAD) hides in a soffit and feeds two or three bedrooms.
- Ductless — wall-mounted, floor-mounted and ceiling cassette units create smaller zones in rooms the ducts never reached, or in homes that never had ducts at all.
A typical Essex County example: an air handler on the first-floor ducts, wall units in three upstairs bedrooms, and a floor-mounted unit in the drafty sunroom — all on one or two H2i outdoor units.
Converting off oil, propane or baseboard
Oil or propane furnace with ducts
The cleanest conversion. A Mitsubishi SVZ or PVA air handler replaces the furnace on the existing ductwork, the tank and flue are decommissioned, and ductless heads handle any rooms the ducts starved. Nothing new on the walls of the main floor.
Ducted air handlers →Boiler with baseboard or radiators
No ducts means a multi-zone ductless design: wall units in living spaces and bedrooms, floor-mounted units where big radiators stood under windows, a one-way ceiling cassette in a hallway. The most common conversion in 1800s village homes from Whitehall to Keeseville.
Ductless systems →Electric baseboard
Baseboard makes one unit of heat per unit of electricity; Hyper-Heat averages about three. The electric service is usually already sized for the load, so the panel work is minimal and the savings start on day one.
Run the numbers →Why decommissioning matters for the top rebate tier
NYS Clean Heat, delivered through NYSEG and National Grid, pays its largest rebates for whole-home conversions: the heat pump has to be sized to carry the full heating load, and the fossil-fuel system has to be removed or permanently disconnected. Keeping the old boiler as a backup drops you to a lower tier. The difference is significant, and the rules change by program year, so we show you both numbers side by side at the estimate and file the application for you. Addison County, Vermont homes earn Efficiency Vermont incentives plus utility bonuses on the same kind of project. See current rebate programs.
A fully sized whole-home system also means the rebate program's load-calculation and cold-climate-equipment requirements are met — which is exactly how we design anyway.
Do you need backup heat in a whole-home conversion?
Mitsubishi H2i equipment doesn't need it to function: 100% capacity at 5°F, operation to -13°F, and -22°F on H2i Plus / FS-series units. In the Champlain Valley — Ticonderoga, Crown Point, Port Henry, Westport, Middlebury — the honest answer is that a correctly sized system carries the house and most of our customers decommission completely.
In the High Peaks the conversation is different. Lake Placid, Saranac Lake and Tupper Lake see -20°F to -30°F on their coldest nights. We design around -22°F-rated equipment and talk through two things: whether to keep a wood stove or the existing boiler for those few nights, and what you want to happen in a multi-day power outage, which stops any electric heat including a furnace blower. Some homeowners add a generator circuit for the heat pump. We'll tell you plainly what we'd do in your house.
Electrical panel considerations
A whole-home heat pump adds one dedicated 240V circuit per outdoor unit, typically 20 to 50 amps depending on capacity. Homes with 200-amp service almost always have the room. Older 100-amp services — common in camps and older village homes — sometimes need a panel upgrade, especially if you're also planning an EV charger or a heat pump water heater. We check the panel on the first visit, price any upgrade into the estimate, and coordinate the electrical work so it's done before install day, never discovered on it. Decommissioning an oil furnace also frees up the circuit it used.
A whole-home Hyper-Heat conversion in Ticonderoga
An older lakeside home in Ticonderoga was heating with aging electric baseboard and cooling with window units — uneven temperatures, drafty corners and high bills. We designed a seven-zone Mitsubishi Hyper-Heat system on two outdoor units: an MXZ-SM42 Smart Multi (42,000 BTU) and an MXZ-3C30 (30,000 BTU), feeding wall-mounted units in the living room, kitchen, basement, three bedrooms and the sunroom overlooking the lake. FS-series heads with the 3D i-see sensor went in the living room and sunroom; GS-series heads in the bedrooms and kitchen.
Both outdoor units sit on custom stands over crushed stone, above the snow and spring melt. Line sets run in slim-duct covers matched to the trim, and a branch box distributes refrigerant across the zones. The homeowner now has room-by-room control, air conditioning for the first time, and no more temperature swings between floors. Read the full Ticonderoga success story, including the equipment list and the rebate math.
What a whole-home conversion costs
Whole-home systems are a larger investment than a single zone — the number depends on how many zones, which indoor styles, line-set lengths, whether an air handler reuses your ducts, stands versus brackets, panel work and decommissioning. What offsets it: the top NYS Clean Heat tier, 18 months at 0% through Synchrony, and the fuel bill that goes away. For an oil or propane home the annual savings are typically the largest of any conversion we do. Run your own numbers in the free savings calculator (the whole-home scenario is one of the three it models, and finishing it earns $250 off), then read what drives the price. We quote in writing at a free in-home estimate.
Whole-home conversion questions
Can a heat pump really heat my whole house in Essex County?
Yes, when it's sized from a load calculation and uses H2i equipment. Mitsubishi Hyper-Heat delivers 100% rated capacity at 5°F and operates to -13°F (-22°F on H2i Plus / FS-series), which covers Ticonderoga's design temperature with margin. For the High Peaks we size for -22°F-rated units.
Do I have to remove my oil or propane system?
Not required, but removing or permanently disconnecting it is what qualifies you for the highest NYS Clean Heat tier. Keeping it as backup drops the rebate to a lower tier. We show both numbers at the estimate.
How many outdoor units will I need?
One multi-zone outdoor unit runs up to eight indoor units. Most homes under about 2,000 square feet use one; larger or sprawling homes use two, which also gives some redundancy. The load calculation decides.
Can I keep my ductwork?
Usually, if it's in decent shape. A Mitsubishi SVZ or PVA air handler replaces the furnace and uses the existing ducts. We inspect and seal ducts as part of the job and add ductless heads for rooms the ducts never served well.
Will my electric panel handle it?
Most 200-amp services have room for one or two dedicated heat pump circuits. Some older 100-amp panels need an upgrade, which we identify on the first visit and price into the estimate.
What about power outages?
Like any electric heat, a heat pump stops when the power does. Many North Country homeowners keep a wood stove for outages or add a generator circuit for the outdoor unit. We'll plan for it with you.
How long does a whole-home conversion take?
Typically two to three install days, plus any decommissioning and electrical work scheduled around it. Your existing heat stays on until the Mitsubishi system is commissioned.
What does a whole-home system cost?
It's a larger investment than a single zone, driven by zone count, unit styles, line-set lengths, electrical and decommissioning, and offset by the top rebate tier, 0% financing and the fuel bill it replaces. We price it in writing at a free in-home estimate.
Rebates Available
North Country homeowners switching from oil, propane, wood or electric baseboard to a Mitsubishi cold-climate heat pump qualify for NYSEG or National Grid rebates through NYS Clean Heat, and Addison County, Vermont homes qualify through Efficiency Vermont plus utility bonuses. Rebate amounts change by program and tier — we tell you exactly what your home qualifies for at the free in-home estimate and handle the entire application for you.
★★★★★“We had Mark, Rolland, and Matt help get mini splits installed in our first home. They worked with us to make sure we had the right system for our home. This team provided amazing professionalism, customer service, and expertise!”
★★★★★“Been doing business with Gerry and his crew for close to 10 years and always totally satisfied with their product and customer service.”
★★★★★“This is our second Mitsubishi heat pump … to heat the 30x40 insulated metal building with a single head we put up but handles it great. … they had to order and install the system in a little over 2 weeks to get it done by 12/31 to qualify for a large rebate and they got it done.”
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- Your number, not an average. Modeled on your ZIP's heating degree days, your fuel price and your system's age.
- Three paths compared. Single-zone, hybrid with your existing furnace or boiler, or whole-home Hyper-Heat.
- Rebates confirmed for you. We tell you exactly what NYS Clean Heat or Efficiency Vermont will pay at the free estimate and handle the application.
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