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motorised valve

The Motorised Submersible Canoe (MSC), nicknamed Sleeping Beauty, was built by the British Special Operations Executive (SOE) during World War II as an underwater vehicle for a single frogman to perform clandestine reconnaissance or attacks against enemy vessels.

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  1. N

    Heating Problem

    I was helping a friend drain down his central heating system in the house he had just moved in. I found that some of the rads bleeding valve had been over tighten to the point they had been rounded off, I bled the rads the best I could then refilled and again beld the rads best I could.When full...
  2. W

    installing destratification pumps

    Hi... Im hoping someone here would please be able to assist me in some way with regards to installinf destratification pumps onto my hot water chlorifiers? iv got 2 horizontal chlorifiers and have been advised to install a destratification system onto both of them. it was suggested to tap...
  3. L

    Unvented system

    Hi, On an unvented system can the central Heating circuit be ran through a cylinder coil? If it can would it require a cylinder stat and motorised valve to prevent the cylinder from over heating? Many thanks lenny
  4. S

    Electrical Wiring to Awkward Condensing Boiler

    Hi folks, hope someone can help us here, I'm struggling to get my head around a complicated electrical install of boiler & cylinders. I'm an electrician, not a plumber. The new system has been installed by others but we've been called in to 'sort it out' after the previous people gave up...
  5. J

    A good analogy for all customers that think we charge too much.

    Phone rings"Hi can I help?" "Yes please,my heating doesn't work,we are cold and we have no hot water,but we can hear a terrible bubbling sound from the pipes in the airing cupboard " "No probs you're only 5 miles from me,I'll be there within the hour" Turn up,workout the system,put a motorised...
  6. D

    Replacing motorised valve on a sealed system?

    I need to replace the valve on a sealed system and just wanted to check that its the same prcedure as a vented system ie. turn system off, drain 1st floor rads, replace valve, refill system What presure should the system be presurised back up to? Is there anything else i should bear in...
  7. R

    Unvented system ...No hot water...

    I have a unvented system with a combi boiler. Reciently there is no hot water. The central heating works ok. Switched on emmersion heater for hot water. Any suggestions what to check first..??:confused:
  8. N

    heating

    hi please could you advise what i need to do my central heating wont go off the setting is set at off and the thermostat is set as low as the dial will allow there is nothing on the boiler that i can see that will allow me to overide anything any advice appreciated
  9. A

    Hot radiator

    Hello all if anyone can help it would be appriciated.I Have just been to a large house,the central heating and hot water runs off a system boiler the hot water is then stored in a cylinder.The problem is that the heating for the house is controlled by two thermostats which are turned off at the...
  10. J

    underfloor heating vs conventional rads

    hi, im trying to price up a a small 2 bedroom bungalow which will be built and we might sell on. Iv had experiance with underfloor and too much experiance with rads. Now they reackon running cost of underfloor is 25-40% cheaper due to lower temps. And one company claimed it take 40% less time to...
  11. Z

    Interferring Radiators With Hot Water System

    We have a Drayton Lifestyle LP522 in our property. As the summer months are coming we have decided to switch our central heating to "OFF" on the control panel. Since doing this, we have noticed that when our hot water comes on (which is set to "TIMED" to come on once in the morning and again in...
  12. U

    Potterton Profile 80e cut out problem

    Hi all, I bought the house a year ago and a strange issue started a little while back. i woke up one morning to find that i had no hot water or central heating. After reseting the boiler all was fine, later that day the heating kicked in and the cylinder had heated up, when the heating turned...
  13. C

    My central heating isnt working please help

    I have a Towerstat RS room stat, a Grasslin QE2 and a glow worm micron 40ff boiler. I had an intermittent problem where the room stat light would be on, but the rads werent warm, and when i turned the stat down the light didnt go off, it just got dimmer. I then had to switch the system off at...
  14. T

    yorkshire plus solder?

    Ive been doing lots of endfeed practice and im getting there. helped out a family experienced diy`er move some rads and we used yorkshire. was very impressed on the neatness, perfect silver line around the joint.... until family member insisted on adding more solder to it! in my mind it made...
  15. D

    heating won't swich off?

    Have a job where although the programmer is off the rads stay on, everything seems to be working including the boiler, could it just be a programmer replacement?
  16. W

    Halstead bentley 50 boiler

    Hi All we have just had a major problem with our boiler basically it would fire up when its called then about every 10 seconds its trying to re-ignite the burners and kept doing this until the boiler reached its temperature and this went on for a few days until one day the boiler just cut out...
  17. T

    Buzzing motorised valve

    the motorised valve on my ch is starting to buzz, particularly when it switches the radiator flow on. It buzzes for a bit and settles down after a random amout of time. Can I perform any remedials (subject to usual safety considerations) apart from replace the thing. (not cheap on a limited...
  18. U

    double pumping

    I want to be able to independently pump both the DHW and the HTG circuits. If I use motorised zone valves with end switches, it looks like either both pumps come on every time the boiler is activated OR the pumps start as the valves BEGIN to turn rather than only when they get to fully OPEN OR...
  19. C

    Pressure

    Hi, I recently had some building works done whereby several rads were removed & then replaced. The boiler hasn't been the same since & will cut out at periods per below. I have a Potterton Suprima & have had it serviced almost annually. I have an expansion vessel up in the loft which at...
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