Glow-worm is introducing a new domestic heating system, which uses hybrid renewable technology to provide homeowners with a heating system that will automatically choose the most cost effective method of heating their home. <br> <br> The Glow-worm Clearly Hybrid system is the first innovation in the UK heating market that couples renewable and traditional energy sources to offer homeowners a heating system that is environmentally conscious and cost efficient for domestic heating and hot water. <br> <br> Clearly Hybrid uses its advanced control system to automatically choose when to use low carbon renewable energy from the heat pump or traditional energy from the high efficiency boiler depending upon which source provides the most cost effective option, based on customers’ heating requirements, energy tariff and outside temperature.<br> <br>