The HeatWinner extracts heat from the air in your home and puts it back into the heating system through the central heating boiler. This is enough to maintain a comfortable temperature in your home on average days. If it gets too cold outside, the boiler switches on to supplement the HeatWinner. Only then does your system start using gas to heat your home. What’s more, Eneco’s smart thermostat Toon®, shows exactly how much you are saving on gas consumption.