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heating system

  1. jarnold231

    MCZ Pellet central heating system

    Good morning, I'm trying to get an MCZ Hydro-22 pellet stove to provide heating. The stove is operational and is providing hot water to the taps, but it is not supplying the radiators. Things I have done: 1. Bled radiators 2. Re-pressurised system (all gauges showing 1.5 bar) 3. Set...
  2. king of pipes

    Filling heating system with softened water

    I have a job with a pre plumbed cylinder the filling loop is attached and piped in with it, my issue is I am putting the water supply supply through a Tapworks AD9 Ultra which will supply all the hot water and cold water taps and showers except for the quooker tap in the kitchen, not sure I like...
  3. B

    LOOSING PRESSURE ON COMBI HEATING SYSTEM

    Gradually losing pressure on combi. heating system. A smallish system in a flat, 7 radiators+ a couple of towel rails. No sign of any water leaks. The boiler is a VOKERA UNICA 32HE. Have been advised that it could possibly be the boiler expansion vessel. If it is this, is it a relatively...
  4. M

    Back Boiler System and oil central heating dual heating system?

    Hi, i am moving into a house with a back boiler open fire. which is great apart from working long hours and not been in to keep the fire going? i want to keep the system but would like a back up sytem that will kick in when the fire goes out? would i be able to put in a oil central heating...
  5. D

    Central Heating System losing pressure despite replacement parts and multiple visits from plumber?

    Good afternoon, Our system is losing pressure on a daily basis. Despite repeated top ups. I have listed the key points below. When motorised valve on the heating side is switched to automatic. System loses pressure overnight. Guage on top of expansion tank drops to zero. I then top the...
    • Deleted member 100166
    • Thread
    • central central heating heating heating system plumber pressure replacement system
    • Replies: 21
    • Forum: Central Heating Forum
  6. M

    Central heating system drained, leaks repaired and now gushing flowing noises in radiators and pipes

    I had a new boiler installed 3 years ago. Recently, I called in a plumber to fix leaking radiator valves. He drained the system and repaired the leaking valves. He also fitted 2 TRVs on 2 radiators in my lounge where there hadn't been TRVs before. I have a large lounge (originally 2 rooms) with...
  7. Pauld1962

    Unvented heating system, unusual boiler fault

    Called to a customer today and the system boiler keeps repressurising on its own ... After I dropped out all the pressure I watched as it refilled ... The filling loop was disconnected at the time ... Customer reports that it's never done it before ... The only way I could stop it was to turn...
  8. O

    New heating system: 4 bed,2 bathroom, UFH/radiator mix

    Hi We are getting new heating installed. Likely go with Viessmann - looking for set and forget, high efficiency, high comfort level, weather comp heating with high modulation ability x20 levels from 1.6kW to 35kW -- Question is, what to choose: system boiler + unvented cylinder (180 litre), or...
  9. D

    Flushing out central heating system

    Morning all! I'm about to flush out my central heating system then put some cleaner in before flushing again then putting the inhibitor in. My question is do I need a magnaclean type device fitted prior to doing this? Bit worried it might damage the boiler. Thanks in advance
  10. Deanoss

    Advice for heating system to install

    Hi Guy's, I am moving into a property that currently has storage heating and no gas supply. The hot water system is a vented set up with tank in the loft and cylinder in a cupboard under the stairs. I have arranged for a gas connection to the house but am left wondering what to do for the best...
  11. G

    sealed heating system air lock problem

    Ive now got to run a heating zone through a flat roof structure where the pipes will have to rise 300mm for 8m before dropping to a single rad using plastic pex pipe. Its obviously a sealed system but im worried about airlocks. Has anyone done something similar with no problems. What do you...
  12. D

    Help with my Y plan heating system please

    hi everyone I’ve noticed a small issue with my heating and it’s bugging me because I can’t put my finger on what’s causing the radiators to randomly come on when our Nest therm is off. I don’t think the Nest is at fault because the heat link is not showing “Heat on” lights when the boiler...
  13. K

    Central Heating System Noise

    I've recently moved into a rented property. Its an old terrace house that's had a great refurb. My problem is they have fitted a brand new Ideal i-mini boiler. The central heating and hot water works fine but there is an irritating hum around the house when it's on. Its loudest when it comes on...
  14. M

    Cannot fill my closed loop heating system

    I am having a strange problem trying to repressurise my closed loop system. I believe there is a (small?) underground leak in the system as the pressure regularly drops. Typically takes a few days So regularly I repressure the loop with a feed valve. There is a pressure meter near the feed...
  15. B

    Constant air in central heating system

    I used to have a duel fuel system at home where I had oil heating and a multifuel stove with back boiler linked up to the heating system and they worked fine together for years. Around a month ago I got the oil taken away and a new worchester gas boiler installed. From this work was carried out...
  16. O

    Flushing central heating system

    How often do you flush , replace inhibitor in closed system. Partly extended in 2008.
  17. M

    Issues with commercial heating system

    I have got a problem with a commercial system. One zone is working fine, the other isn't. There are two vaillant boiler linked together through a low loss header and controlled by a VRC 630 control unit. When the zone which is causing issues is turned on, the zone valve opens as per the...
  18. M

    TF1 Omega Filter on heating system

    Hi all, not on the tools now days just the odd job for family and friends. Need to put a filter on the heating system my problem is all the pipe work goes from the boiler into the loft and across the loft floor, (Bungalow) the only place to put filter is between the boiler and ceiling 9" (228mm)...
  19. R

    How does my heating system work? Very confused

    Hi all, just bought a house and can't for the life off me figure out how my hot water is been heated.. I had a Honeywell controller thingy that I swapped for a hive, when I turn on central heating boiler fires up etc house gets warm all is well but here's the bit that confuses me... When I turn...
  20. mbc0

    Creating A Multi-Zone Heating System

    Hi, I have bought quite a large house to renovate and have completed the upstairs but am now wanting to create a multi-zone heating configuration. I have bought a nest thermostat, we already have many google home's in our house so this was a logical step. I am not a plumber but can get my...

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