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central 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. S

    Central heating pump

    Wondering if someone can answer my queries. We have a firebird C35, downsized to 26kw condensing boiler. 2 Ufh manifolds and rads. When the boiler runs the rads and manifold 50m from boiler the boiler runs perfectly. When the boiler runs the closest manifold 15 m away from boiler heating approx...
  2. J

    Have my water pipes been plumbed the wrong way?

    Good morning, I recently had an extension, new bathroom and new en-suite fitted. Prior to the works the hot water worked. Now we have moved back we have no hot water. British gas came for 5 hours on saturday and replaced every single part of the boiler to do with the hot water as well as the...
  3. C

    Grant Vortex Combi 21e no central heating

    Hi, I've recently put some heating/hot water pipes into the floor as there were exposed previously. On refit of the pipes i've gone to test the boiler functionality however, the central heating won't fire. The hot water works perfectly. There is no CH light on the boiler and the return...
  4. T

    Whether to power flush a 40 year old central heating system?

    I’m currently looking into replacing my 20- year-old Ideal Classic FF 360 gas boiler in a 70s semi and have been getting various quotes for a condensing conventional boiler, as we don’t want a combi. The current boiler works well, we have it serviced every year via British Gas Homecare, but...
  5. S

    Slow leak on my pressured central heating system

    Hi, new to this forum. I hope someone experienced out there can help me find the fix. We recently finished a building project and had a major re-design/move of all of our hot water (megaflo), boiler and central heating system. I am not a plumber nor do I know much about plumbing but I know...
  6. M

    Smart TRV and room thermostat replacement

    Hi, A bit of background first I have a air source heat pump, downstairs is all underfloor heating and controlled by individual room thermostats. I am happy with this setup and can control this centrally (a heatmiser solution which I may add smarts to later). For hot water I have a simple...
  7. A

    No hot water to kitchen tap only or central heating

    Hi, I require some advice on two issues. I have a Worcester 24cdi combi boiler, my kitchen mixer tap only gets hot water when I turn central heating on. The toilet hot water works without needing to turn central heating on. I recently increased the boiler pressure from below 1 to 1.5, could...
  8. T

    Pipes making noise even when central heating is off

    We have a Grant condensing oil fired boiler in good condition and four years old. Sometimes after a period of use when the central heating has been on, we can hear a rhythmic sound from the pipes and the boiler is not firing up as it should Leave it for a while and turn up thermostat and it...
  9. D

    Cleaning central heating system

    Hello. We live in the UK and have an open vent CH system with a tank in the attic. Recently our hot water didn't work, so we called a gas engineer. He popped in , did tap a few pipes around water storage tank with a magic wound ( magnes ) and water started heating up. He said that some pipes...
  10. W

    Convert central heating with 1 meter into separate controls & meters

    Would it be a big job? Would floorboards have to be taken up etc? How long would it take? Each unit is a single-person flat. Would tenants have to move while it's done, or could it be done in a short time...say within a day? It's an old building - heating is from 70s or 80s. The type of heating...
  11. E

    My gas central heating uses a lot of electricity - Why?

    I have gas fired central heating and hot water system. It is on a timer, but, in winter, I leave the central heating on and the thermostat set low - 17c. I'm well insulated so the heating comes on infrequently but enough to keep the house warm enough for a family of three. Here's the problem...
  12. N

    I Have a problem with my central heating system

    At the end of December 2021, I moved into a ground floor flat with a "wet" Central Heating system. It is fitted with a Sadia Electric Boiler (Amtec 9Kw), which is fairly new and has been checked very recently. The system works OK when the room stat is set a temps below 15degrees but if it is set...
  13. M

    Central heating issue on Logic Combi ESP1 35

    Hi, I noticed the pressure this morning on my boiler was just below 1bar so I went to top it up, opened the loop and it just managed to hit over 1bar then just stopped increasing. Now the central heating looks like its on but all the radiators are luke warm even when temperature is 70 degrees...
  14. M

    Bolier pressure - Central ceating issue

    Hi, I noticed the pressure this morning on my boiler was just below 1bar so I went to top it up, opened the loop and it just managed to hit over 1bar then just stopped increasing. Now the central heating looks like its on but all the radiators are luke warm even when temperature is 70 degress...
  15. W

    No Central Heating, Pump faulty???

    Hi all, Central heating has packed up at my parents house, firstly it was only the upstairs Rads that were working and downstairs not now both have stopped working. I think it could be the central heating water pump as it seems a little loud with some 'odd' sounds now and then, I have tried...
  16. B

    Central heating issues

    Hi all. I've got an issue developing with my heating that is causing some head-scratching. First, some background info - the system consists of a 36kW condensing boiler, supplying 10 radiators, 2 towel rails & an underfloor loop, using 22/15mm copper tube. A magnetic filter is fitted on the...
  17. W

    Oil central heating boiler squealing

    Hi, today I turned my central heating oil boiler on at the switch inside and it seemed to fire up but the water didn't get warm so I checked and it has locked out so we pressed the magic eye (start button) under the boiler front cover on the motor. It fired up and is working but it's making a...
  18. A

    Purpose of a hot water return line and a check valve

    Please see the RED marked area; The Hot water service (HWS) rretun line having a Check valve what is the purpose of this valve here? also i can see a TEE in the HWS forward and Return line, it's the only thing will be available in the HWS F&R joint? What i have understood is the HWS F&R...
  19. P

    URGENT Boiler Issue / No Central Heating

    Hi all, We had a bathroom fitted on the ground floor over the past couple weeks, including a new wall hung radiator in there. Unfortunately for both days since the completion the bathroom i've had an issue where the boiler is coming on but the radiators aren't getting warm. The boiler looks...
  20. R

    S-Plan Central Heating Installation Question

    I'm just putting this out here in case I am missing something. Can anyone think of a valid reason why a plumber would install a completely new S-Plan CH installation (apart from the boiler) but NOT install the necessary electrical control system to to allow the CH and HW to be turned on and off...
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