Installing different types of radiant panel heating units, by Stu Silverman

Radiant panel heating units are typically installed under the floor, but can be purchased for ceilings and walls as well. Radiant units are effective for heating your home, and are generally easy to install.

Electric is most popular

Radiant panels are heated in three different ways: electric, water pipes and air channels built into the panel. Electric and water pipes are the most commonly used type of radiant heating panels. Air panels are rarely used. Electric is most popular because of the lower cost of installation.

Electric radiant panel systems come in a roll-out mesh. This mesh can be installed under a hardwood floor or on top of the subfloor, beneath the flooring material. Installation is made easier if you can access the floor joists. This method is preferred if your home has existing floors that you don't want to remove and replace. The panels are fitted between the floor joists and connected to a thermostat. They can fit areas from ten to 160 square feet.

Electric and water pipes are the most commonly used type of radiant heating panels. Air panels are rarely used.

Hire an electrician or handyman to do wiring

The panels are powered with a low voltage current, and have a low heat capacity. They are connected to a typical thermostat – which an electrician can wire for you. Alternatively, you may decide to hire a qualified electrical handyman to do the job.

Radiant panel systems are also available in ceiling and wall panels, which are typically made from gypsum or aluminum. These can be heated with either water or electric. Again, electric is most common. The reason is both the lower installation cost and the risk of leaks in the panels.

Testing is required for all types of radiant panels

Regardless of the type used, a radiant panel test should be conducted every two or three years. In addition, testing will need to be conducted when the home is sold. Another good time to test the system is when flooring materials will be replaced. Since you will be removing the flooring and exposing the panels, it's a perfect time to discover any problems and take care of them. This will help prevent the need to tear up relatively new flooring, should a problem arise.

Best to test when replacing the floor

Electric systems need to be tested for continuity. This ensures that there is no current leakage. In addition, these systems should be tested with an ohm meter to measure resistance. If the system was installed in the floor joists, the flooring may not need to be removed. However, if the panels are on the subfloor, under the flooring, you will need to remove the flooring materials. For this reason, it's a good idea to test when you are replacing the flooring to save unnecessary work and expense.

Get hydronic panels tested by a pro

Hydronic systems can develop leaks from a variety of different sources. Leaks can develop from improper installation, tubing becoming brittle and breaking down, or simply old age.

Hydronic panel heating systems will need to be tested by a professional, who will conduct a pressure test to determine the health of the system. Repairs will need to be done by a professional, and in most cases the flooring will need to be removed and replaced after the repairs are made.