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system

  1. alanmcm

    Moving into a new home and boiler system is 17 years old

    My daughter bought her first home and was hoping to convert to gas but its not available in the area, so thinking a boiler upgrade is the better way to go. Just after some advice and rough costs involved, is it worth getting a pressurised system installed and a new boiler and oil pump? Heating...
  2. S

    Repiping Central Heating System Advice

    I am repiping my whole house and changing from combi boiler to a 30kW system boiler & 250Ltr or 300Ltr unvented indirect hw tank. Can somebody give advice on my rough plans/sketches for repiping my radiators using 22mm & 15mm. I have only shown the flow line as the return line will just be a...
  3. N

    Replacing a Radiator Valve on a Boilermate 2000 system.

    My daughter's place has a small water leak on a ground floor radiator valve. The radiator pipework is small diameter.i.e 8 or 10 mm. A plumber is coming back in a day or so to make necessary repairs. I am a little concerned as the house has a Boilermate 2000 on the upper floor and the...
  4. J

    Old un-pressurised heating system - top up valve

    Hi All, I hope you are doing well. I have old un-pressurised heating system and I need to top up the water but I cannot locate the bloody valve. Where is it? Is it in the attic? I also have this valve with black screw on top. Should this be opened or closed? Thank you
  5. Zig168

    Combi Boiler vs System Boiler

    I think the last discussion was back in 2021. A few questions to guide any discussion. Which are the cheapest to heat over the year, system or combi in an average 3/4 bed property? Which will be the more reliable and cheapest boiler type to repair over the next 10 years? Is there a better...
  6. B

    New regular boiler (heat only) in a sealed system??

    Hi, I am replacing our 11 year old boiler (due to H.Ex. leak) with a new one. This is in a "sealed" system with red expansion vessel in airig cupboard & a megaflo (no tank in loft). However the exisiting boiler is Vaillant ecoTEC 4xx boiler - which is satated by vaillant as an "open vent" boiler...
  7. chloeradhsaw

    One Pipe System Ideal Mexico 2 Boiler

    Hello friends - I really struggle to understand my heating and hot water system I posted my question on Diynot but it ended up being five pages and couldnt get to the bottom of it and I thought worth asking the elders on here for their view - Hot water temp is 40 Degrees - Ideal Mexico 2...
  8. C

    Ideal 32 system efficiency level

    I’ve had an Ideal Vogue 32max/gen2 system boiler to a Megaflo fitted a week and running it at Flow temp 73 degrees to getting a return temp of about 55 degrees C, I’m seeing the LCD screen saying the efficiency level is only 25-28%. Has anyone else seen such a low percentage? I know for a fact...
  9. P

    Is a fast recovery HWC a benefit for PDHW system?

    I am looking into a new Main eco compact / Baxi 618 system boiler set up for PDHW (if its possible) I was hoping to use the EPH controls priority hot water pack I currently have a 15year old HWC around 900mm tall by 450mm dia would I benefit from a new fast recovery HWC for the system (I...
  10. K

    Smart Pump Setting with gravity fed system

    Central Heating Pump - G Pump Force HE-RS25/6PWM-130 Hi, I would be grateful if someone could explain whether our CH system can cope with the AUTO (adaptive mode) setting on this the new pump or which mode it is best set at (recently had our old 3-speed pump replaced with the above smart...
  11. gmartine

    Very cheap system boiler?

    Anybody have an account with City Plumbing? Of course they have no obligation to sell it to you at that price...
  12. H

    can this be done in a pressurised heating system

    Hi all , on a pressurised heating system is it ok to take a flow and return up into the loft and down again to install new radiator also would it be prudent to put AAV at the high point , thanx in advance . Howy
  13. mattgriff88

    Flushing/Cleaning central heating system?

    Hi I have recently bought a house which is 17 years old. There was a small leak from one of the radiators So I took the pipe off and drained the radiator and the water was black/brown. I took the radiator off and flushed it out with a hose pipe out the garden but it's got me thinking and I...
  14. 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...
  15. P

    Changing a system fill valve

    Hello, I want to change the system fill valve, but I’m struggling to dismantle the existing toilet to access underneath the tank, I’ve added some pictures can anyone advise of the steps? Thanks!
  16. Inverness

    Intergas rapid 25 change to system

    Hi. I believe this boiler can be changed to a system or combi. Does this mean the hot and cold tails have to be blanked off?? Also the horizontal flue does not come with self tappers compared to another brands I've installed in the past.. Im I right in saying it's almost like a pushfit? The...
  17. R

    Always lots of air in our CH system

    When I turn on our CH there's a lot of noise from one specific part of the system - the pipes on the landing, and one radiator. It sounds like air, and the landing radiator needs bleeding regularly (about once a month), even though it isn't the highest point in the system. The two upright rads...
  18. T

    Vaillant eco plus 837 System loosing pressure.

    I have a Vaillant eco plus 837, year installed 2008. It works well. We have one large zone for the house with 13 rads running off it. We also have an UFH zone in the kitchen. Near the boiler I have 2 port valves which control this part of the system. The boiler has been loosing pressure...
  19. R

    Gravity fed system not sure how this valve works

    This valve is fitted to the lower heating coil of the hot water cylinder Can anyone say what is the point of it I have been told its a thermostatic valve to control hot water temp so would have thought it may be in the wrong position ?Any explanations welcome
  20. T

    h/w cylinder compatible with future heat pump system?

    Hi We urgently need to get our h/w cylinder replaced because it's leaking. Our current system is oil boiler feeding underfloor downstairs, radiators upstairs and an unvented hot water cylinder for hot water. We are thinking of moving to a heat pump at some point but aren't ready to do this. My...

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