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cold

  1. B

    scalding hot new Danfoss c-2 TRV cold lockshield and new radiator only hot at top .

    I have recently replaced all fourteen Stelrad radiators eight singles four doubles and two chrome towel radiators on small bore 10 mm piping in my four bedroom detached house.The Grundfoss pump is ten years old and sounds good .no bearing rumble.The Ideal classic ff 350 boiler is twenty years...
  2. L

    Water hammer caused possibly by cold feed crossing into hot feed

    Have a water hammer that can't get to the bottom of and have searched everywhere. Hammer occurs when hot tap 1st runs the noise comes from the hot water tank cupboard thought it was the expansion vessel so had it replace went away for a short time but returned. Had the vessel checked again and...
  3. H

    Priority cold water flow to combi

    I understand that its normal for output flow from a combi to reduce when the inlet cold water flow is reduced (when other outlets are opened) but is there a method/process/configuration that can be adopted to minimise the effect in the the drop in flow and in doing so, provide a priority flow...
  4. J

    Sweating cold water pipe

    I'm having an issue where I am getting a buildup of condensation on the cold water pipe in my home that is located in my kitchen. I have insulated the pipe with plenty of foam but it's still doing it, It's then running down the pipe and down my stop tap and onto my wooden floor. The cold water...
  5. T

    Hot/cold taps not mixing

    Hi I have mixer taps on my kitchen/bathroom taps and when I put the hot on a then try to cool it with hot then the hit goes off, what could be causing this?
  6. P

    Cold tap in upstairs bathroom flow problem

    Hi all, I'm having an issue with the cold tap in my upstairs bathroom. There is barely a trickle of water coming out, while the hot water tap is running fine. I'm not having any problems with any other cold taps in my house. A Google search suggests that there may be an airlock in the system...
  7. G

    One cold rad

    I have a gravity feed heating system. F&E tank in the loft - boiler is located outside in the shed. the problem i am having is that when i turn on the heating on 1 radiator upstairs in the master bedroom wont get hot - I've bled the rad and its running clear water. if i isolate the heating...
  8. T

    Mains cold water knocking out gravity hot water in bath shower mixer

    Hi all. My customer has a bath shower mixer that gets cold from the mains and hot from a vented cylinder and the cold knocks out the hot. I'm thinking about putting in a thermostatic bath shower mixer but would appreciate any other ideas! Cheers all/
  9. D

    Hot water only lasts 2 - 3 minutes before slowly dropping to cold.

    Hi all, Hot water only lasts 2 - 3 minutes, if I turn it off for a minute hot water returns for a couple more minutes. It seems to last longer on a lower pressure. We had a plumber change the heat exchanger which didn’t make a difference. And it’s not the thermal mixer in the shower as we had...
  10. K

    Why do i have one cold radirator

    Had a combi boiler installed, Power flush as well. but I have 1 stone cold radiator, all the rest through the house get piping hot, thermostat have been changed, inlet valve has been changed, water flows through the radiator, if youy try to bleed it it comes straight out. so no air in the...
  11. R

    single rad is cold following change of water in the system

    Hi I'll much appreciate opinions on the following. gravity system, two floors noise in the pipes best heard in the airing cupboard in the morning. Noisiest on hot water cycle. All rads working fine. attempted to remedy using sentinel noise reducer. drained water from the system, added the...
  12. r1k1n

    Advice needed about cold water copper pipes sweating

    Hello there guys, We've recently discovered (after a drop of water hit my brother on the head!), that a cold water copper pipe is sweating. We thought it might be a leak but have only seen droplets of water on the pipework and after some research have deciphered that the pipe is sweating. The...
  13. KarlAtkins

    Cold radiator

    Hi all, Hoping someone can help me out with this. I have added 3 new radiators to a system and replaced 2, the 3 added are small 400 X 600, initially upon refilling the system all worked fine except one 400X600 which was the furthest from the boiler and one other which was a replacement...
  14. D

    Air lock from cold water storage tank

    Having problems with a recurring air lock in the cold water system which is tank fed. Every couple of months it dribbles out very slowly hot water. Not full flow but just a dribble. I use a wet vac to suck the air out every couple of months but it re occurs. Is it possible it’s due to a faulty...
  15. X

    Towel warmer staying cold after working initially

    Hey everyone! I have a towel warmer that used to work fine for a few months then all of the sudden stopped. As far as I can tell nothing has changed as in nobody fiddled with the balance of the radiators, the pressure in the combi boiler has been fine, etc. So far I have tried: bleeding the...
  16. D

    Constant use of cold water after bathroom/kitchen renovation???

    I renovated my bathroom and kitchen recently and installed new piping+ faucet + thermostatic mixer and new dishwasher in kitchen, the work was done by a professional plumber. I have noticed that during the night I use cold water when all the taps are closed( around 9L each day, it has been a...
  17. L

    Noisy cold water pipe

    Due to our kitchen being refitted the mains cold water supply has been moved to a new location 12 inches from the original location. Now when I use any cold tap in the house I hear a rumbling whining sound. My plumber tells me that he has used the original stopcock and pipe so this sound must be...
  18. B

    shower in loft is cold unless I turn on sink cold tap.

    Hello, I've got a thermostatic shower valve feeding a shower head in the ceiling of my bathroom. The bathroom is in my loft, so 3rd floor. I have a system boiler setup on the ground floor. The shower was running stone-cold whatever the settings so I fitted a new cartridge but even now at it's...
  19. P

    Cold Water only during power cut - why??

    Boiler is Worcester Heatslave external 18/25. We were notified of a pending power-cut for today a few days ago. Electricity was due to be off for 12 hours but fortunately came back on after about 6. I assumed that I'd be able to draw the hot water from the 51 litre tank whilst the power was off...
  20. P

    Sirrus TS1503 cold on start

    I do hope you can help, I have a Sirrus TS1503 shower connected to a combi boiler. Sometimes, not all the time, the shower will be cold to start with and stays that way. if you leave a while and then try again it will be OK warm/hot does not get cold when in use, and temperature is very...

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