You are reading a single comment by @mashton 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.
@mashton
They really aren't three ways valves. They are two way valves.
I know this in (haha) two ways: 1) they have two pipes going in/out of them, 2) googling the model numbers and noting that they are 2 port zone valves.
The immersion heater is ONLY there for when the system is broken. I know this because 1) I was told it by the last heating engineer I had out and 2) it is TURNED OFF all of the time. With the off switch. That I keep turned off and only turn on when the system is broken.