Creating one of the most comfortable and economical heating systems available, our Earth Thermal Storage Electric Radiant Heating System is an under-concrete slab (sometimes called “under-floor”, “in-ground” and “ground storage”) heating system installed in soil or sand under a concrete slab building foundation.

The result is that the ground underneath becomes an efficient, large mass of stored thermal energy. It’s the same principle as the earth’s core.

The system is charged (energized) when less expensive off-peak electric rates are in effect or to shift peak demand to quieter periods. The stored energy is only released when the area above it becomes cool. Otherwise the radiant heat remains where it is so there is no wasted energy.