heating

  1. Noisy76

    Help replacing old thermostat with new

    Hi I have a new thermostat for our central heating which I'd like to install, however I'd like some guidance on wiring it in. I have some experience in electrical work, and have taken precautions to isolate the wiring, and checked with my multimeter, so everything is safe to work with...
  2. Small85

    How do I turn this radiator value off?

    Hi, I'm doing some decorating and need to take a radiator off the wall. I've done this a few times before however I've never seen a lockshield value like this one before where the spindle is completely round. Does anyone have any idea how to tackle this? Thanks in advance
  3. Audronius

    Boiler pressure rising indefinitely when heating is on

    Hello, Recently moved to a new rental place. The Vaillant EcoTec Pro 24 boiler was empty (I think for quite a while), refilled it via the loop to 1.5 bar & bled the radiators to remove any air. One of the valves (the smaller handle) in the filling loops leaks very slightly but I don't think...
  4. C

    Location of radiator without TRV

    Hi all, I understand that a CH system requires that at least one radiator have no TRV to prevent the user from closing all valves, and overheating the system, but I have also read on this forum that the radiator lacking a TRV is typically placed near the thermostat...
  5. mafj

    convert cold water tank/vented cylinder installation into vented heat store with HIU for DHW

    Hoping to solicit opinions before venturing into this project. The motivation is simple - shower/kitchen pressure (mind this is bungalow with 1.2m head ove r shower). I have been toying with the idea of connecting PHE to cylinder directly with pump and bunch of necessary components. But this...
  6. S

    Hive heating wiring - bdr91

    Hi all, I am in the process of updating our heating controls. Looking to install Hive as we had it at a previous house and simply want to utilise the app as we work shift work so do not have set schedules. I am looking to install this myself as I always like to attempt in the first instance...
  7. Winglet

    What could I replace this system with?

    Hi everyone, I recently moved into a detached house that is about 20 years old and has the original boiler. The boiler is in the kitchen and then upstairs I have a cupboard with a hot water tank. There is also a cold water tank in the loft. I had the boiler serviced and it works but not...
  8. R

    Hanging a heavy radiator?

    Hi, I’ve recently bought a new build house. I’m looking to change a standard double panel 600mm x 600mm radiator to a vertical radiator which is 1800mm x 480 mm. The vertical radiator weighs around 45-50kg before water. I think the current one is probably only 20kg before water. The current...
  9. SS-ProjectBuild

    Boiler in outbuilding garage/control unit

    hi Guys, I'm building an outbuilding for recreational purposes which includes a separate shed/garage.... I'm thinking of installing the new boiler in here as its easier to get the gas supply pipe here. I want to be able to control the central heating from inside the main outbuilding... like...
  10. O

    Holes in Walls

    22mm tubes going through a solid 9" brick wall. 30mm holes drilled- strapped a spirit level to the drill & a square to the wall so they're straight and level for a change. Question- is that 4mm gap going to give me annoying rattles and creaks when thermal expansion kicks in (the 2 tubes are feed...
  11. JK5599

    Why do I have 2 receivers??

    I hope someone can help, We have a Mitsubishi ground source heat pump system with a water cylinder with a Mitsubishi PAC-IF013B-E Unit on the front. Downstairs we have a wireless Danfoss TP500Si thermostat which talks to the Danfoss RX1 single channel receiver also attached to the unit. There is...
  12. Sriq

    Actuator issue? Drayton ZA5

    Hi, So for the past week we've been hearing this loud constant clicking/motor-like noise throughout the house, and I've managed to track down the cause of said noise. It's a white box inside one of our un-used storage cupboards that says it's a Drayton Zone Valve ZA5 Actuator. The device...
  13. B

    Honeywell To Hive Dual Receiver Help Please!

    Hi all, I hope someone can help. I recently purchased a hive dual channel receiver for my Worcester boiler which works alongside an immersion tank. The existing system was a Honeywell setup consisting of: - Wireless thermostat (battery powered in hallway) - BDR91 Wireless relay box (in cupboard...
  14. T

    Replacing an oil system hopefully with something 'green', too many options, advice please.

    We've recently moved to a 1960 bungalow. Reasonably insulated, double glazed, retrofitted cavity wall insulation, fair loft insulation. The house has a modern (2009) large extension, feels well insulated but with lots of glass and rooflights. The extension has underfloor heating, everywhere else...
  15. M

    Conversion from outbuilding to Annexe

    Dear All, Today is my first day on this forum & amateur. So pls do not use abbreviations in reply. Last month I bought an end of terraced house which has an outbuilding at the end of the garden, which is 36 feet (11 meters) away from the kitchen/toilet in main building (extended kitchen/toilet...
  16. D

    Garage conversion heating

    What is the best option for heating a garage being turned into an office? The garage is separate from the house so connecting to the boiler would be tricky.
  17. Gwreay

    Horstmann H37XL Nest Integration

    Good morning, I've had a look at a few threads featuring a horstmann H37XL however the wiring on the posts is slightly different in that our box has 2 lives, earths and neutrals. Our central heating is a 2 zone controlled by Drayton ZA5 aculators, oil fired and currently using the horstmann...
  18. Harmonitron

    Miele G1022 giving brief pulses of power to water heater

    My Miele G1022 stops washing with three Wash / Rinse, Drying and End LEDs flashing at 1 Hz. Heater element is 25 Ω. That looks OK. Thermistor is 13 kΩ at room temperature and 2 kΩ in a cup of boiled water. That looks OK. The Schrack 0419 11 0101 02 relay shows scorching on the inside of the...
  19. Rich2020

    Nest - Central Heating Problem

    I have a Nest gen 3 Gas C/H system in a standard size semi. Up until a couple of days ago, the hot water and central heating worked fine. The schedule and app on phone triggered as should. Nothing has changed in the house whatsoever. The thermostat and the Heat-Link(receiver) are paired so I...
  20. Dashy999

    Nest E compatible?

    Hi, Wondering if some kind person on here happens to know whether my Honeywell cm907 thermostat can be swapped out for a Nest E thermostat? Currently I have the honeywell connected to my gas combi boiler and the thermostat controls the heating alone. The screen on the honeywell has failed (a...
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