Certified ThermaRay dealer and distributor
Premier Energy USA designs and supplies ThermaRay radiant heating for homes, businesses and industrial buildings. The heat is built into the structure, so there are no ducts, no boiler, and nothing to maintain.
New construction, remodel or retrofit. Each system is matched to the building with a room-by-room heat loss calculation, so you only install the heat you need.
Under a concrete slab
Panels go in below the slab and turn the concrete and the ground under it into a heat battery 2 to 2½ feet deep. The bigger the mass, the longer it holds heat and the less it costs to run. It charges on cheaper off-peak power and releases heat all day.
Above the ceiling
Panels lay between trusses or rafters, just above the drywall. They warm the floor, walls and windows the way sunlight does. Ideal when you can't tear up a floor.
Under the subfloor
Panels hang between the floor joists below the subfloor, so the floor height doesn't change. A good fit over basements and crawl spaces.
Under tile, stone or wood
A thin heating cable goes on top of the subfloor or an existing slab, under almost any flooring. It's the lowest-profile cable in the industry.
Surface mount, hanging or T-bar grid
Slim radiant metal panels that mount to a surface, hang from the structure or drop into a 2×2 or 2×4 ceiling grid. Heat lands exactly where people work.
Under concrete, pavers or asphalt
A limited mass system that sits below the wear surface instead of being poured into the concrete. That protects it from the cracking, heaving, shifting and salt that destroy embedded systems. Sensors watch moisture and temperature and turn it on before snow sticks, so there's no shoveling, plowing or salt.
Sit next to a window in January and you'll feel it. The air is 70°, but the cold glass pulls heat out of your body. Forced air and baseboards heat the air. Radiant heat warms the surfaces around you: floors, walls, windows and you. That's why a radiant room feels warm at a lower thermostat setting.
At Battery Wharf in Boston, ceiling panels run along every window wall so the owners can sit by the harbor view all winter.
Hydronic systems pump hot water through tubes in the floor. Here's how an electric thermal mass system compares.
| Feature | ThermaRay electric radiant | Hydronic tubing |
|---|---|---|
| Cost to install | Usually a quarter to half the cost, depending on location | Boiler, pumps, manifolds and tubing |
| Cost to operate | 35–70% less than hydronic or forced air, depending on power source | Higher, especially when insulation limits the thermal mass |
| Foam under the slab | Not needed for thermal mass systems | Usually required, often thousands in materials |
| Off-peak electric rates | Qualifies with most Midwest power companies | Most systems don't qualify |
| Mechanical room | Considerably less space | Room for a boiler and plumbing |
| Maintenance | None. No moving parts, nothing to replace, silent | Pumps, valves and fluid to service |
Figures from Premier Energy USA project experience. Actual costs depend on the building, climate and electric rates.
A few of the buildings Premier Energy USA has heated with ThermaRay.
Manhattan, New York
Invisible radiant ceiling heat in the primary and secondary bedrooms of a new Upper West Side condominium.
Industrial
Chelsea, Manhattan
“Radiant heating panels offset the heat loss at the window while making the guest experience pleasant, providing them a gentle warmth while sitting on the bed near the curtain wall and window.”
Calgary, Alberta
“We could never go back to living in a standard house. The extra effort was the best investment we have ever made.”
“We're now warm enough to know we will eventually just stay the winters and give up Hawaii … crazy, eh?”
“The Thermal Mass Storage Heating System is easy to install and well-suited to maximum demand control … We’re talking days’ worth of storage so the money you save is enormous!”
Premier Energy USA designs and supplies the system. Most owners or local electricians handle the install, with drawings that make it straightforward.
Call or send your plans. New construction, remodel or retrofit, a single bathroom or a 500,000 sq ft facility.
We run a room-by-room heat loss calculation, recommend the right system, and send drawings and a quote.
You or your electrician install from our drawings and videos. A typical home thermal mass floor takes two people 3 to 5 hours.
From a simple wall thermostat to Wi-Fi control from your phone, or thermostats hidden in a closet so nothing shows.
Have one that isn't here? Call 800-506-7973.
ThermaRay systems typically cost 35% to 70% less to operate than hydronic or forced air, depending on your power source. That holds even against systems burning natural gas. Thermal mass systems also qualify for off-peak electric rates offered by most Midwest power companies, which lowers the cost further.
Not with a thermal mass system. Heat only moves toward something colder, so it stops spreading once the ground below reaches the same temperature, around 54°F. In a five-year North Dakota study of two identical duplex units, the fully insulated unit was only slightly cheaper to run. The insulation worked out to a 43-year payback.
Yes. Most systems are installed by the owner or a local electrician. We provide the design, drawings and installation videos, and we can help coordinate the install if you'd like. A typical residential thermal mass floor takes two people about 3 to 5 hours.
Yes. Thermal mass floor heating and radiant ceiling heat are both designed as primary heat, including in North Dakota and northern Minnesota winters. Floor joist heating, floor warming and metal heaters can be primary, supplemental or spot heat.
They're closely related. Radiant heat is any heat that travels as electromagnetic waves and warms objects directly instead of the air. Infrared is the part of that spectrum, just below visible light, that's especially good at warming surfaces and people.
We're based in the Minneapolis area and supply projects across the US and Canada, from cabins in Minnesota and North Dakota to condominiums in Boston and Manhattan and a net-zero community in Calgary.
