True comfort isn't a number on a thermostat. It's the quiet certainty that every room feels the same the moment you walk in. 5-Constant Comfort is our integrated standard for a serene home, holding five things steady at once: temperature, humidity, fresh air, cleanliness, and quiet. Radiant floors warm the room evenly from the ground up, with rated temperature swing held to about ±1 °F. Matched air handlers manage cooling and keep relative humidity in the 40-60% range that ASHRAE and the EPA recommend for healthy, comfortable indoor air. High-efficiency filtration keeps the air clean, self-cleaning indoor units stay clean between services, and the whole system runs near silently at roughly 20 dB(A). The result is a home that simply feels right, all year, without you ever thinking about it. Purpose-built for your quality life.
Far-infrared radiant floors warm a room evenly from the floor up, the way the sun warms a stone terrace, so there are no hot ceilings or cold corners. Refrigerant flows directly through embedded copper loops, holding rated room-temperature swing to about ±1 °F. You stop noticing the temperature, which is exactly the point.
Air that is too dry feels harsh; too damp feels heavy. Matched air handlers actively manage moisture to hold relative humidity within the 40-60% comfort window recommended by ASHRAE and the EPA, so the air feels balanced in January and July alike. Skin, furnishings, and fine wood floors all benefit from steady, well-tempered air.
A sealed, well-built home needs intentional fresh air. The system pairs radiant comfort with continuous, gentle air movement through matched air handlers, so rooms never feel stuffy or stale. Fresh, conditioned air keeps the whole home feeling open and alive, even with the windows closed against weather, noise, or pollen.
High-efficiency filtration captures fine airborne particles as air circulates, and the indoor units are self-cleaning, so the equipment you rely on for clean air stays clean between services. Because radiant floors heat without blasting air across dusty surfaces, the home stays calmer and tidier underfoot, too.
Comfort you can hear isn't comfort. The indoor units run near silently at roughly 20 dB(A) — quieter than a library reading room — with no rushing vents, no rattling ducts, and no boiler cycling on at night. Your home stays as serene as it looks, so the only thing you notice is how good it feels.
An affluent homeowner building a custom residence wanted the calm, even, draft-free feeling of a fine hotel suite throughout the house, not just steady temperature, but balanced humidity, fresh clean air, and true quiet, without a basement full of separate single-purpose equipment.
Working with our manufacturing partner network, the home was designed around the 5-Constant Comfort standard: far-infrared waterless radiant floors for even floor-up heat, matched air handlers for cooling, humidity management, and fresh air, high-efficiency filtration with self-cleaning indoor units, and near-silent equipment selection throughout the living spaces.
The finished home holds steady, even comfort across every room with no visible vents, no audible mechanical noise in living and sleeping areas, and balanced, clean air year-round, delivered as one coordinated system rather than a patchwork of devices.
Five qualities held steady at once: constant temperature, constant humidity, constant fresh air, constant cleanliness, and constant quiet. Instead of treating heating, cooling, humidity, air quality, and noise as separate problems, the system manages them together so the whole home simply feels calm and comfortable year-round.
Very. Refrigerant flows directly through copper loops embedded in the floor, and the floor radiates warmth evenly upward rather than blowing hot air around the room. Rated room-temperature swing is held to about ±1 °F, which is why rooms feel consistent the moment you enter, with no warm ceilings or cold corners.
Humidity is managed by matched air handlers, which condition the air to hold relative humidity within the 40-60% range that ASHRAE and the EPA recommend for comfortable indoor air. Balanced humidity is a large part of why a room feels pleasant rather than dry and harsh in winter or heavy in summer.
Yes. The indoor units operate near silently at roughly 20 dB(A), with no rushing vents, ductwork rattle, or boiler cycling. Because the floors heat by radiation rather than forced air, there is far less air noise overall, so the home stays as quiet as it is comfortable.
It integrates them. One refrigerant-direct system delivers even radiant floor heat in winter and, with matched air handlers, cooling, humidity management, fresh air, and high-efficiency filtration. Coordinating these together is what produces the steady, all-season comfort that a stack of separate single-purpose devices rarely achieves.
In the ways you feel every day, yes. Warmth comes from refrigerant flowing through sealed copper loops in the floor — not from electric resistance cables — so there are no heating-cable electromagnetic fields underfoot and no in-floor electrical-leakage or water-leak risk. Because heat rises evenly by far-infrared radiation instead of being blown through ducts, the air stays calm: no forced-air drafts, no dust pushed around the room, and none of the dry static that blown-air heat tends to create. The result is steady, even, low-irritation warmth that is simply easy to live with.
Most luxury homes end up with two mechanical systems fighting for space, budget, and attention: radiant or hydronic heat for winter, and a separate air-conditioning system bolted on for summer. Waterless Radiant settles the question. A single inverter air-source heat pump drives refrigerant directly through copper capillary coils in your floor for invisible, draft-free warmth all winter — then, in summer, the same platform delivers cooling through discreet, ultra-quiet indoor air handlers. Add domestic hot water and one system handles all three. There is no second condenser to hide outside, no competing thermostats, no mismatched comfort. You design once, install once, and own one coordinated system that holds the whole house steady year-round — purpose-built for the way you actually live in your home.
Learn more →Smart Zoning & App ControlComfort should answer to you, not the other way around. HT Radiant treats each room as its own zone, so the primary suite, the home office, and the rarely-used guest wing each hold the temperature you set for them. From your phone you can switch heating or cooling on and off, dial in a setpoint, build daily and seasonal schedules, and watch energy use room by room, whether you are upstairs or three time zones away. Underneath the simple app sits a control system that reads several signals at once, including your target temperature, the actual room temperature, supply conditions, and refrigerant behavior, then adjusts output continuously rather than slamming on and off. The result is steady, even warmth in winter and quiet cooling in summer, without the hot-and-cold swings or the on-off cycling of cruder systems. For a primary home, a mountain retreat, or a property you manage from afar, control stays effortless and always within reach.
Learn more →Tell us about your project requirements and get a custom quote within 24 hours. No minimums on digital production — start with a prototype and scale to millions.