We have provided the improved version with a zoning function so that for instance south and north facing areas can be controlled as individual systems. We have done this to save you energy since snow in south facing areas melt more quickly due to the warmth of the sun.
You can also give priorities to the zones so that the ice and snow in one zone melt before the next. You will benefit from this feature if you have to allow for limited power output – and you can add new zones as you expand the system.
EFIT™ 850 - makes it possible to control four separate sensors in two zones - on your roof, as well as the pavement and parking lot.