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heating

A central heating system provides warmth to the number of spaces within a building and optionally also able to heat domestic hot water from one main source of heat. It is a component of heating, ventilation, and air conditioning (HVAC) systems, which can both cool and warm interior spaces.

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  1. B

    Ever had Central Heating Water leak INTO Cylinder fresh water ?

    Hi, Vented system, F&E Tank etc. Cylinder about 10-12 years old. Just running some x800 through to try & improve radiator heat. (another story) Been in a couple of hours. Just run a bath & the water has a slightly odd brown'ish tint to it. never had before. does not smell. Is there anyway it...
  2. jamesythe3rd

    New radiators not heating

    Having recently replaced my condensing gas boiler, i decided to upgrade two small double radiators which were located in a room which had been added to the original footprint of the house. The new radiators were tall standing double radiators approx twice size of originals. My fitter explained...
  3. R

    Radiator vs underfloor heating

    I am in the process of having an extension for approx 4m by 6 m including sky lantern Whilst I appreciate underfloor heating would be good don’t think I can afford this however would a large vertical radiator be enough to heat the area space
  4. A

    Please help. When Heating on no hot water and vice-versa with Drayton 27101 - 3 port motorised valve

    We have a Drayton 27101 - 3 port motorised valve 22mm compression Issue: when heating switches on there is no hot water, when you switch heating off you get hot water. I replaced the motor in the motorised valve, everything started to work like it should. But an hour later and the same...
  5. B

    Central Heating cuts out when DHW reaches set temperature

    Hello, I hope someone can give some advice with this problem. I have a Vaillant ecoTec plus 418 with Drayton MA1 mid-position actuator, Drayton HTS3 cylinder stat, Honeywell DT90E room stat and Drayton LP522 controller. Boiler fires up reliably, but after it cuts out as soon as the DHW...
  6. L

    Tp9000 won’t stop heating

    Hi, moved to the house with tp9000 controller with sensor downstairs and another thermostat in top bedroom. Normally all works ok , ch and hw works as per temperature set points. Once a week(random) downstairs controller will not turn off and heat all the time. No red lights are on so it does...
  7. J

    What size heating element is needed for this tank?

    Just wondering what size heating element is needed for a 1200 x 450
  8. P

    Heating works but not hot water

    I have an Ideal combi isar HE 24. Heating works perfectly but hot water does not at all. Turn any hot tap on and water gets luke warm after about 10 seconds then boiler disengages and water gets cold again. Been told it could be thermistor, or a couple of other things. Can anyone please help?
  9. P

    How to raise pressure in my samsung 6 gen joule heating system

    Hi Guys, my pressure gauge showing nearly (if not) 0 Bar. Heating downstairs works for now, upstairs 2 out of 5 rads not. I'm trying to get a plumber in but it will take few days, have kids home and afraid to end up with no heat. I believe all what it needs is get pressure back to 1 bar but...
  10. N

    Dual zone central heating query

    Hopefully a quick question: I have bought a new house and had a few issues with the CH system (they connected the valves for the two zones to the wrong thermostats which has now been fixed) but have now come across something that doesn't make sense to me. I have a downstairs cloakroom (toilet)...
    • Neil Atkins
    • Thread
    • central central heating central heating system dual dual zone forum heating plumbing query zone
    • Replies: 2
    • Forum: Plumbing Zone
  11. K

    Hot water no heating

    Hi, I have just had me diverter valve and cartridge replaced so solve my original issue of have both heating and hot water on at the same time without the option to turn off. But now I can’t turn my heating on. It’s on, on the boilers thermostat but doesn’t heat. I’ve disconnected all other...
  12. A

    Understanding gas central heating system

    Hello everyone, We have recently moved to the UK, so really don't know much about gas central heating and boilers over here etc. So this is probably a very basic question but I just don't know! We are moving to a house later this month. It has a "wall-mounted gas-fired boiler for domestic hot...
  13. S

    How to test central heating pump?

    Happy New Year everyone! I need a little help on figuring out what's wrong with my central heating (CH) system. I'm in a new house, and I know the system has a single motorised diverter valve for hot water and radiators (rads). Problem is almost none of my rads get hot, except for 2 or 3 that...
  14. dips31

    Ground floor heating not working.

    We shifted to a new house with 3 floors. The boiler is in the attic. We have problem with the ground floor radiators which is not heating at all. When we shifted a plumber removed one radiator in the ground floor we are not sure if that is the reason. Its a one pipe heating system. So many...
  15. T

    Drain Central Heating System- when is it safe to switch Boiler back on

    Drain central heating system (water tank in loft) in a two storey house - ground and first floor when is it safe to switch the boiler back on - is it only when the tank in the loft has stopped making a noise - implying that the system is back to where it was before the system was drained. The...
  16. dilligaf

    Grundfos Central Heating Pump Weak?

    Do central heating pumps lose their strength over several years and is it worth taking it apart and servicing it? Are the two seals either end 1 1/2 inch or 1 1/3 inch? What's the latest central heating pump should I need to replace mine (photo) like for like?
  17. S

    Banging heating pipe

    Hello everyone! I've spoken to my super a few times about the heating pipe in my bedroom, which makes a terrific amount of noise every time the heat comes on - a problem that does not affect the similar pipes in my kitchen or bathroom. He says it's normal and that nothing can be done, but I'm...
  18. C

    Boiler running but no heating

    Hi boiler has been making a noise continuously for 24h as if running but no pressure or heating. Could this be because of a frozen condensation pipe? We can't check it die to location. Should we leave boiler on? Worried about energy costs as you can imagine. We had barely put heating on
  19. Fogster74

    Working on heating side of system with an unvented cylinder, no G3?

    Hi all, I'm a competent DIYer with an engineering background and am active in Heritage Buildings. I never touch anything I'm not allowed to albeit I've worked on the wet side of my own heating on the central heating circuit before when I had a combi - balancing rads, add a Fernox TF1, washing...
  20. F

    Ideal 25kw combi boiler issue No heating Just hot water

    I wish to thank the boiler guy for disconnecting Hive for me from the combi boiler. You did a wonderful job of cutting off the heating bit, so now I cannot heat the house but still have lovely hot water coming out of the taps, So luckily I have moved my 76-year-old father out of the house. Turns...
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