Demtroys offers a leading heat control solution for the multi-residential market, combining energy savings and resident comfort. Our multi-source wireless technology works with any size building and generates savings from 10% to 40% (average 25%) for a 6-month to 5-year payback period. Whether you have electric, hot water, fuel or natural gas heating, Demtroys has the right technology to adapt to all heating systems. Today, Demtroys™ System is installed in more than 12000 units including several retirement homes in Ontario. Rebate available.