You are reading a single comment by @Jon. and its replies.
Click here to read the full conversation.
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
Jon.
Are you absolutely certain the thermostat is able to control the boiler? Does turning the thermostat really high or really low cause the boiler to switch on / off?