How it Works


SunnyTherm’s weatherproof, UV-resistant panels are 2 feet square and about 3 inches thick, and their polycarbonate double-glazing makes them much stronger than glass.

The panels, which weigh only about 15 pounds each, can be mounted on any exterior wall with good exposure to direct sunlight. The number of panels and their configuration are customized to the unique needs of each site. Each panel heats about 100 square feet, and the blower moves the heat from the panels to the space being heated.

Because the panels absorb radiant heat from the sun—not the sun’s light, as with photovoltaic panels—they’re able to function even on overcast days.

The system pays for itself in two ways: It consumes much less energy than a conventional heating system, and it reduces wear and tear on that existing system as well.