"The cloud-based OptiWatti optimizes energy usage on heating and cooling with a smart and predictive control mechanism. OptiWatti is a smart system that can save up to 40% on heating and cooling costs. Optimization is based on user preferences, weather forecast and price of electricity. The user interface is available on computer, tablet and smartphones, which makes it easy to access and control the heating and cooling remotely. OptiWatti provides a single solution for controlling all the heaters such as radiators, ceiling, underfloor and window heating systems, and also air-source heat pumps and boilers. The smart energy saving system is installed alongside the traditional electrical or water-based heating system. OptiWatti is suitable for homes, cottages and large properties." With integration to the booking calendar system heating and cooling are automated based on the booking situation.