The Worcester Bosch Greenstar Comfort I is an intelligent programmer that plugs into the boiler and comes with a separate room thermostat. When used with a gas boiler, the thermostat has a load compensation function that allows the control and the boiler to communicate intelligently, resulting in a 3 percentage ErP package efficiency increase. This control simply plugs into the boiler and comes pre-paired with the room thermostat for a quick installation.

• Three adjustable heating and hot water time periods
• Wireless signal strength indicator to identify best location
• Pre set heating and hot water programme
• Pre-paired transmitter and receiver
• Easy menu navigation
• Holiday mode of which only frost protection will remain active throughout this programmable period
• Simple to install
• 7 day time control for heating and hot water
• Enhanced load compensation for increased efficiency
• No wiring required