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hot water

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  1. M

    Leaking hot water heater. Repair or fix?

    Hi, I've got a brand new (2nd hand) Bosch Hydropower 16H tankless hot water heater. Since it was installed I have noticed it leaks a lot. I took the cover off and it looks like the bottom part (water section?) is leaking in a couple of places. maybe a seal or diaphragm? Can it be repaired or...
  2. K

    hot water but no heating

    We have a dual heating system, a solid fuel stove with back boiler and a external kerosene heater. The kerosene heater is working fine heating the radiators and the water for the taps The solid fuel stove will heat the water for the taps but the radiators will only get luke warm. Can anyone...
    • Kenneth1
    • Thread
    • heating hot water water
    • Replies: 1
    • Forum: UK Plumbers Forums
  3. lollino

    Measuring Hot Water Consumption in Shared Recirculation System

    Hello everyone, I'm facing a rather complex situation and I need your expert advice. My neighbor and I share a boiler for hot water, and we have a single recirculation pump serving both of our homes. However, after the pump, the recirculation circuit splits into two separate branches, each...
  4. F

    shower bar mixer not producing hot water

    hello all, happy new year! i hope i have posted this in the right section i have a shower bar mixer. the shower runs luke warm. a quick google search showed some ideas on how to adjust it. i tried adjusting it and it didn't change the temp. when i adjusted it the other way to test the cold...
  5. Inverness

    Solid fuel hot water

    Firstly I won't be touching or going anything... I only want advice if this is right.. my partners dad has a aga that is solid fuel unregulated heat source and a oil boiler. The problem the hit water cylinder doesn't have a stat thus why the hot water is roasting hot but there is a pipe stat on...
  6. J

    Air source heat pumps and hot water

    Hi Can somebody tell me if a standard heat source pump installation uses a pressurized hot water tank? Or will the pressure for the hot water be the same as with my oil boiler and water storage tank (gravity-fed)?
  7. M

    Boiler pressure is rising? Did indirect hot water tank coil fail?

    First post as I can not figure this one out. I have a hot water boiler heating system, gas fired, with an HTP SuperStor indirect hot water tank. I'm on well water and have a water softener and two whole house filters for my water. Three days ago I found my high pressure relief valve tripped...
  8. P

    Change shower mixer. Invented hot water cylinder

    I need to change my shower mixer and I have a unvented hot water cylinder. Is it sufficient to turn off the mains? Do I need to drain the cylinder? Thanks
  9. S

    Sporadic Hot Water - Unvented indirect

    Good Afternoon all, I am hopeful someone may be able to offer some guidance on the following. In the home we have a gas boiler (serviced annually, October time) providing hot water to the CH system which is split into 3 zones (Honeywell 2-way valves) and it also heats the HW tank (Tribune...
  10. M

    Combi boiler hot water but no heating

    My first thought when I heard this fault a combi boiler with hot water but no heating. Was a problem with the stat, controls not making the call for heat. If this is not the case. Can the divertor valve be the cause of the issue?
  11. B

    Do I need a washer for blanking plug in a copper hot water cylinder?

    Hi all I'm blanking a couple of openings in a hot water cylinder. The Screwfix Flomasta 1" BSP plugs fit perfectly but no washer supplied or listed. Given that the element has a washer and everything else is a compression fitting I'm concerned these should have one. The alternative is PTFE...
  12. F

    Hot water diverting back to the boiler

    When I put the central heating on the hot water gets drawn through the pump but is then being diverted straight back to the boiler instead of the rads What is this, and how likely is it that it is faulty? That sits in between the hot water to the rads and hot water to the hot water tank...
  13. B

    What happened to stop valve and hot water?

    Hi everyone, Could someone please explain if this set up is normal and what changed: Stopcock under kitchen sink turns off cold water supply in kitchen only Stopcock in kitchen wall panel turns off cold water supply in kitchen only Red gate valve in airing cupboard next to bathroom turns off...
  14. W

    Low hot water pressure

    Low hot water pressure Hi everyone, I'm hoping someone is able to shed some light on my situation before I have to call out the professionals. We've been in our house for over 3 years now, when we moved in the hot water pressure was pretty good (confirmed by a retired plumber family friend)...
  15. S

    hot water not staying hot in an unvented system

    hello we have an unvented system. we have an issue where the hot water is hot for 10 seconds and then luke warm, turn off taps / wait and turn back and it repeats itself. had boiler checked and told it was the expansion vessel. Had the expansion vessel drained and recharged. plumber told me...
  16. B

    Boiler short cycling in system with hot water tank

    Issue with boiler short cycling in system with hot water tank. We have an ideal heating logic heat2 h15 boiler which feeds a hot water tank upstairs in the house. We have an issue where if the boiler isn’t set to 80c then the boiler will short cycle, the hot water tank thermostat is set at...
    • Boiler short cycling
    • Thread
    • boiler hot water system tank water water tank
    • Replies: 10
    • Forum: Boiler Advice Forum
  17. markmanningnz

    Hot water cold after weekend away

    Hi all, new to this forum and looking for a bit of advice please. Have been noticing recently some odd behaviour with our hot water system. If we go away for the weekend, leave Friday afternoon and back Sunday night, the hotwater is lukewarm at best up our return Sunday evening. I then need...
  18. K

    Vaillant ecofit pure hot water cuts out

    I have a Vaillant ecofit pure, we had it installed about 6 years ago so it's not an old boiler, a new pump was also fitted at the same time. Anyway, I have the hot water set to come on the morning but the last couple of days I've noticed after around 10mins it's cuts out, then after s couple of...
  19. S

    Greenstar CDI Classic - Hot Water Issue

    Evening All, Been having on and off issues with a Greenstar CDI classic Combi were the hot water is not heating up but only intermittently. Some days/ weeks it’s fine and works fine all of the time but on the odd occasion it’s been running cold in the following sequence. It fires up the boiler...
  20. P

    Isolating hot water supply - indirect unvented cylinder system

    Hello, I am fitting new taps and a shower mixer in my en-suite and was looking to isolate the hot water pipes. I have an unvented indirect heating system (have attached some photos). I was wondering if the isolation valve that would shut off the water to the hot water taps is as circled in the...

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