Radiant Space Heating and Cooling

The Use of Temperature Controlled Surfaces

Radiant Heating/Cooling Overview

What is Radiant Heating and Cooling?

Radiant heating and cooling is a process that uses temperature-controlled surfaces to transfer heat to a space. This is typically done by having a thermal tubing inside a surface that transfers heat to the space. In a Radiant system, we may have a single heating unit that distributes heat to multiple heated panels or areas with thermal tubing.

A radiant system, on average, is 30% more efficient than an equivalent air system. For users with a geothermal system or a solar water heater, a radiant system can be used in conjunction to increase savings and efficiency.

Once installed, the radiant system is virtually invisible and operates almost silently.

Ideal Applications

Whole Building Heating

Whole Building Cooling



Out Buildings

Driveway Snow Melt

Sidewalk Snow Melt

In-Ground Pool Heating

General Use in Buildings

Heated Panels

Hydronic Underfloor

Heated Panels

For buildings using radiant systems, heated panels are an excellent way to provide temperature control to specific areas or small spaces. These panels are suitable for new construction and also retrofitting existing structures. The temperature is controlled by the water flowing through the thermal tubing in the panel. The water-controlled systems require a water heating/cooling source and a pump to control water flow. Compared to a system installed into the structure, the panels are easier to install down the road and provide more area-specific heating.

For outdoor space heating, radiant heat is a favorable option. Instead of heating the air, heat is transferred directly to the people or objects in the range of the heater. This means the wind or heat loss caused by heat quickly rising and leaving the space does not affect efficiency. An electric or gas radiant heater is best suited for this situation.

Hydronic Underfloor, Wall, and Ceiling System

Hydronic systems use a series of thermal tubes, either installed in the floor, wall, or ceiling, to transfer radiant heat throughout a space. The tubes transfer water that has been heated or cooled just above or below the set room temperature. The surface absorbs the energy from the tubing it is fixed to. That energy radiates out into the space to provide even and accurate climate control. A traditional furnace and air conditioning system will output the hottest or coldest temperature it can to heat or cool a space. This leads to wasted energy and uneven heating. On the other hand, a radiant system outputs a temperature just a few degrees from the thermostat set point to heat or cool the space with maximum efficiency.

A hydronic system also has many other uses, such as heating driveways, sidewalks, pools, and more. For more information on snowmelt for driveways and sidewalks, check out our snow melt systems here.

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