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Recent content by proppi

  1. P

    Cold water leaking through tundish after service of cylinder

    Many thanks Last Plumber for an excellent explanation and many thanks to all the others too. Looks like I will have to bite the bullet and get a new PRV installed. I just hope that not all future services are going to end so troublesome, otherwise maintenance of the cylinder is going to cost me...
  2. P

    Cold water leaking through tundish after service of cylinder

    Hello, We have had our unvented cylinder serviced for the first time a few days ago (the whole heating system is brand new, well one year old :)). Soon after the service I noticed cold water dripping through the tundish. The company who did the service sent another engineer who said the...
  3. P

    Dual Cylinder Thermostat

    Many thanks again, Stanios, very clear. My only issue is that the installation of the cylinder (and a new Vaillant ecotec plus system boiler) was done as part of a refurbishment project for which I have a contract with a main contractor so I will have to go through him to avoid any problem with...
  4. P

    Dual Cylinder Thermostat

    Thanks to both of you. Pictures below. The black cable runs from the thermostat to the grey box, one white cable runs from the grey box to a switch at the wall which allows to turn the immersion heater on/off, the other white cable runs from the grey box to the immersion heater. Could the...
  5. IMG-20170410-WA0002.jpeg

    IMG-20170410-WA0002.jpeg

  6. IMG-20170410-WA0004.jpeg

    IMG-20170410-WA0004.jpeg

  7. P

    Dual Cylinder Thermostat

    Thanks Stanios for the explanation - indeed I misinterpreted what 'dual' means. So the immersion heater does have a stat that I cannot see but which prevents the cylinder from overheating? Regarding the thermostat that I can see: Unfortunately the installer did wire it to the immersion heater...
  8. P

    Dual Cylinder Thermostat

    Hi, Trying to understand how the (dual?) thermostat on my freshly installed indirect unvented cylinder (manufacturer is Joule) is supposed to be working. The thermostat is attached about a third from the bottom and let's me set the temperature between 25 and 65 degrees. It has been wired to the...
  9. P

    Feed and return pipe size

    If it does prove a complication, can I just turn it off?
  10. P

    Feed and return pipe size

    Many thanks to all of you for your useful advice. The plumber has agreed to replace part of the ground floor pipes with 22mm so that we should not be left with more than 5kW on a 15mm run. He decided to also add a pump to the ground floor zone. After reading the post from Last Plumber I am now...
  11. P

    Feed and return pipe size

    Hello, I need some advice from the experts please. As part of a full refurbishment of our house we had a completely new heating system installed: Vaillant Ecotec Plus 630 system boiler (30kW), three heating zones (loft = 2.5kW total radiator output, first floor = 6kW, ground floor = 10kW) plus...
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