Go all-electric without giving up real warmth in deep cold
Whether you're building in a state that now requires all-electric new construction or simply choosing to retire the gas furnace, the same question keeps you up at night: will an electric system actually keep the house warm at 20 below? Waterless Radiant is built to answer it honestly. A single inverter air-source heat pump — no gas line, no flue, no combustion — drives refrigerant directly through copper capillary coils in your floor for quiet, even, draft-free warmth, and delivers true cooling in summer from one platform. Enhanced vapor injection lets it keep pulling heat from frigid air down to a rated −13 °F and hold full heating output to 5 °F, covering the vast majority of cold-climate winter hours on electricity alone. For the handful of genuinely brutal peak hours each winter, we engineer in right-sized backup rather than pretend it never matters. All-electric, ahead of the gas phase-out, and purpose-built for your quality life.
Can an all-electric air-source heat pump really heat my home in a cold climate?
Yes. Our cold-climate platform uses an inverter compressor with enhanced vapor injection and supercooling specifically so it keeps extracting heat from extremely cold air — it's rated to operate in heating mode down to −13 °F and holds full rated heating capacity all the way to 5 °F. That covers the vast majority of a hard northern winter on electricity alone. Real-world performance always depends on your climate zone, building envelope, and proper sizing, which is why we engineer each system per region rather than ship one nationwide spec.
Common All-Electric & Cold-Climate Projects Challenges
We understand the unique production challenges your industry faces. Here's how we address them.
"Air-source heat pumps don't work where I live"
The fear is real and earned — plenty of older air-source heat pumps quietly surrender by the time it hits the teens, leaning on electric resistance heat. Going all-electric only makes sense if the system actually carries the house through a hard northern winter, not just a mild one. Without genuine deep-cold capability, electrification feels like a downgrade.
A gas ban with no luxury-grade replacement
New construction in New York, California, Washington and a growing list of jurisdictions must now go all-electric, and gas furnace sales face phase-out elsewhere. But most all-electric options feel like a compromise — strip-heat furnaces, basic mini-splits, or a hydronic loop that can freeze and burst. You need an all-electric system worthy of the home, not a code-minimum substitute.
Overpromised "never needs backup" claims
The market is full of vendors swearing their air-source heat pump never needs supplemental heat. On the worst night of the year, that promise can leave a family cold. Affluent owners want the truth about the coldest hours — and a system engineered for them — not marketing that papers over the one moment comfort matters most.
Solutions Built for All-Electric & Cold-Climate Projects
Inverter EVI air-source heat pump rated to −13 °F
A variable-speed inverter compressor with enhanced vapor injection injects extra refrigerant mid-compression to pull usable heat from air most systems can't touch. It's rated to operate in heating mode down to −13 °F and holds full rated heating capacity all the way to 5 °F — so on a normal hard winter day there's no struggle and nothing burning in your home.
Cold-Climate Air-Source Heat-Pump Platform →One all-electric platform, three jobs
The same air-source heat pump that warms your radiant floor in winter delivers true cooling through quiet indoor air handlers in summer, and can produce domestic hot water — heat, cool, and hot water on one electric platform. No gas line, no flue, no second condenser, no combustion. You meet all-electric requirements with one coordinated system designed once and owned once.
Heat, Cool & Hot Water — One System →Honest backup, engineered for the worst night
We don't claim you'll never need backup. For the few genuinely extreme hours at the bottom of the range each winter, your system is designed with right-sized supplemental heat that engages seamlessly, so you stay comfortable on the coldest night by design rather than by luck. Waterless DX means no water loop to freeze or burst when it matters most.
Products for All-Electric & Cold-Climate Projects
All-Electric Cold-Climate Air-Source Heat Pump
The inverter air-source heat pump at the heart of every all-electric Waterless Radiant home. Enhanced vapor injection and supercooling keep it productive in deep cold — rated to −13 °F, zero capacity derate to 5 °F, with a heating COP up to 4.6 — available in capacity tiers from roughly 2.3 to 9.5 tons and sized to your climate zone and envelope.
Waterless DX Radiant Floor
Hot refrigerant flows directly into copper capillary loops embedded in the floor — no water to freeze or burst, no plate exchanger or circulating-pump losses. A low-temperature radiant floor is the ideal partner for an air-source heat pump, letting it run in its efficient sweet spot while delivering gentle, even, draft-free warmth from the surface you stand on.
Two-in-One Heat & Cool Configuration
Radiant warmth in winter plus true summer cooling and humidity control through discreet, ultra-quiet indoor air handlers — all from the same all-electric air-source heat pump. A triple-function option adds domestic hot water, consolidating three jobs onto one refrigerant platform instead of separate gas and AC systems.
An all-electric mountain home through an extended deep freeze
Challenge
A high-end home in a cold mountain climate zone needed all-electric heating owners could trust through prolonged sub-zero stretches — without the freeze-and-burst risk of a hydronic radiant loop, and without falling back on a gas furnace as a crutch.
Solution
An inverter EVI cold-climate air-source heat pump was sized to the home's load and envelope, feeding a low-temperature waterless DX radiant floor, with right-sized supplemental heat engineered in for the extreme peak hours and summer cooling delivered through quiet indoor air handlers.
Result
The system held even, comfortable indoor temperatures through an extended deep-freeze event, running on the air-source heat pump for the great majority of hours and calling on backup only briefly at the coldest extremes — all electric, with no combustion and no water-loop freeze exposure.
Rated heating operation to −13 °F outdoor
Zero capacity derate held down to 5 °F
Heating COP up to 4.6
An all-electric platform proven across real cold-climate installations
Figures reflect the manufacturing partner network's installed base and rated platform performance.
690,000 sq ft installed
Installed across projects
In service since ~2017
Field-proven since
Rated to −13 °F
Rated heating range
All-electric
Combustion in the home
Frequently Asked Questions
Yes. This is a fully all-electric heating and cooling system: no gas line, no propane, no flue, and no combustion appliances. New York's All-Electric Buildings Act took effect for most new low-rise buildings (including single-family homes) on January 1, 2026, California requires all-electric new homes, and Washington's code pushes air-source heat pumps in new construction. A single inverter air-source heat pump handling heating, cooling, and optional hot water meets the spirit of those all-electric requirements with one coordinated platform. Always confirm specifics with your local code official.
For most cold-climate homes the air-source heat pump carries the house through the great majority of winter on its own. We're honest about the exception: during the few genuinely extreme hours each winter — at the very bottom of the temperature range — your system is designed with right-sized supplemental heat that engages seamlessly. We design that backup in deliberately rather than claim you'll never need it. You stay comfortable on the worst night without oversizing or overspending the rest of the season.
Yes — it's a complete all-electric replacement for furnace heating, with one platform handling both heating and cooling. Even in serious cold an air-source heat pump delivers far more heat per unit of energy than a combustion furnace can, and pairing it with a low-temperature radiant floor keeps it running efficiently. As more regions phase out new gas furnaces and tighten emissions rules, an all-electric cold-climate air-source heat pump positions your home ahead of the change and avoids the rising cost of compliant gas equipment.
Most cold-climate air-source heat pumps push air through ducts or wall heads. Ours is purpose-matched to a refrigerant-direct radiant floor: hot refrigerant goes straight into embedded copper loops, so there's no water to freeze or burst, no plate exchanger, and no forced-air drafts or visible wall units. You get the deep-cold capability of a premium inverter air-source heat pump plus the quiet, even comfort of a radiant floor — in one all-electric, waterless system built for a luxury home.
Capabilities for All-Electric & Cold-Climate Projects
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