Frequently Asked Questions About Radiant Heat

Q.

What is radiant heat?

A.

Radiant heat is a unique transfer of energy that naturally searches out colder objects to warm. Instead of rising like warm air, radiant heat starts by warming the coldest and closest objects from its source. Installing radiant heat systems under the floor ensures efficient, luxurious warmth that is spread evenly throughout the room.

Q.

How does a radiant heating system work?

A.

Electric radiant heat systems utilize a conductive material (heat cable or thin panel) that is embedded in the floor. When the floor heating system is turned on, the energy forced through the heating element, which creates resistance - or heat. The heat radiates and warms the floor and room. Electric floor heating systems feature rapid response times and are very energy efficient. There is virtually no wasted energy with radiant heat.

Hydronic radiant heating systems utilize specially treated water that is heated and pumped through a closed loop of PEX tubing to heat the floor.

Q.

What radiant heating system is better, electric or hydronic?

A.

Both systems have distinct advantages. When heating small areas, such as a bathroom or playroom, electric radiant under floor heating systems make the most sense. The advantages and benefits of electric floor heating systems are usually superior to hydronic floor heating for warming small and medium-sized floor areas. Electric floor heating systems are more efficient, easy to install, and the least expensive. Controlled by a thermostat with an in-floor sensor, electric under floor systems are maintenance-free and have the quickest response time.

Hydronic systems require a mechanical room with a boiler and pump, but because these systems usually operate on natural gas, they can offer a slightly lower operating cost than electric systems, making them more popular for heating large indoor areas.

Read the article Which Radiant Heating System is Best for your needs.

Q.

What is the difference between low-voltage and line-voltage systems?

A.

The main difference between low and line voltage systems is in how the heating elements are controlled. Low-voltage heating elements require a control box and transformer, whereas line-voltage cables only require a thermostat. Low-voltage systems are not any safer than a line-voltage system once embedded in a medium, and operational costs are about the same. Line-voltage heating systems tend to be less expensive per square foot when heating smaller areas.

Read more about line-voltage and low-voltage radiant heat systems.