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Which? is a United Kingdom brand name that promotes informed consumer choice in the purchase of goods and services by testing products, highlighting inferior products or services, raising awareness of consumer rights and offering independent advice. The brand name is used by the Consumers' Association, a registered charity and company limited by guarantee that owns several businesses, including Which? Financial Services Limited (Which? Mortgage Advisers), Which? Legal Limited and Which? Limited, which publishes the Which? Papers.
The vast majority of the association's income comes from the profit it makes on its trading businesses, for instance subscriptions to Which? magazine, which are donated to the campaigning part of the organisation to fund advocacy activity and inform the public about consumer issues. Which? magazine maintains its independence by not accepting advertising, and the organisation receives no government funding. The Consumers' Association is the largest consumer organisation in the UK, with over 573,000 subscribers to its magazine.Until 2006, the association used prize draws similar to those of Reader's Digest to attract subscribers, but following criticism they were discontinued. The Association now attracts subscribers to its publications with free mini-guides and trial offers.

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  1. P

    heatline vizo wiring

    hi there looking for a little help please i have a heatline vizo boiler that started to go wrong a short while ago and a plumber came out to look at it and told me that the diverter valve was leaking and had blown the three way valve motor, he replaced the motor unit and then cut the cable...
  2. B

    Boiler feed pipes

    This is a question of which pipes are which really with regards to the infeed and outfeed pipes to boilers in general but more specifically the gas feed pipe. Is this usually noted by a yellow thumb turn switch? No work to be carried out here of course just to make that clear :-))
  3. B

    new bolier needed and i am a newbie

    good afternoon i wonder if anyone could help? i have been givin a price for a range of boilers for my 2 bedroom house a ideal boiler,valient and worchesterbosh which one is best? thank you for your help :)
  4. R

    Hot water problem with immersion/boiler system

    Hi, My rather old immersion boiler decided to give up the ghost the other day, notifying the household by tripping the switches at the fuse box. I guess it is the heating element as replacing the fuse did nowt. No problems I thought as we have a boiler which can do our hot water for us - right...
  5. I

    Which unvented direct cylinder

    Hi all, new here. I am in the middle of researching unvented direct cylinders to replace my faulty cylinder at home. A bit of background before i ask my questions etc. Since moving into my 2 bed flat in London 3 years ago, i have had nothing but trouble with the current setup... and...
  6. T

    Room thermostat advise please

    I have a combi boiler central heating system (Worcester Bosch). The room stat is in the hall way, not ideal you may think, but we have a log burner in the lounge and the hall is centrally located so is a reasonable place for it given the house layout. At the moment I have Honywell digital...
  7. S

    Vaillant Eco Boiler - Heating will keep coming on and off at random times!

    Radiators keep coming on and off, could just be a coincedence but I have noticed this happens on really cold days/nights. Frost protection? I have the Hot Water and Radiotor dial on the boiler turned to half way. Thermostat in house switched off or set to under the dispayed temp. On the odd...
  8. AlexGas

    Boiler servicing... by Which? mag. Just bizarre!!!

    What a bizarre way to put it!? Someone who’s been trained is likely to do a better job than someone working illegally. https://www.which.co.uk/documents/pdf/boiler-servicing-checklist-pdf-412872.pdf
  9. A

    Which Oil Combi Boiler is best

    Hi Guys New to this forum so excuse me if this question has already been raised. I am about to install an oil central heating system and wondered which boiler you guys recommend I have been quoted for both Warmflow UC120 HE and a Worcester Greenslave Heatslave 25/32 but some reviews favour a...
  10. T

    How does a TRV work

    Apologies if this is a double post, I thought I had posted a message but I can't see it. I had a radiator which wasn't getting hot and on closer inspection I found the locking nut was loose. As no water was leaking I unscrewed it completely. What I found was a valve with a central pin slightly...
  11. C

    Noisy Programmer

    I have recently had a new replacement oil fired boiler installed in the garage as well as a new wireless timer/programmer which is located beside the new boiler. My previous programmer was a Horstmann Coronet mechanical timer which is inside the house. This old timer is still used as part of...
  12. D

    New member TRV problem.

    Evening all ! I recently had the wax bulb break on one of my radiator TRVs, so I took the thermostatic top off the valve, checked the pin was working correctly(which it was) so got a replacement Drayton RT212. Fitted the new top only with no problem, three days later the wax bulb had burst...
  13. B

    How much would a new bathroom cost?

    Hi i want to buy a new bathroom. is there any idea how much a new bathroom cost?
  14. K

    Central heating upgrade recommendations

    Hi, I need some recommendations on how to improve the central heating in my house. We have a 35kw combi boiler which pushes out good hot water to the taps and manages to heat up all the downstairs radiators just fine. The ones on the middle and top floor are warm or luke warm at best though...
  15. P

    new boiler advice

    Hi all, going to replace my boiler have a potterton promax 24he regular boiler 14 years old having continuous ignition lockout and has started leaking so has to go , looking at a couple of cheap boilers the potterton gold 24kw open vent which would prob be a straight swap and just seen a...
  16. M

    Wide range cylinder stat?

    Hello forum, Can anyone please tell me, is there such a thing as a cylinder stat with a wider than standard temperature range? I have a bog standard one now which holds temperature to (I guess about) +/- 5 oC from set point. I'd like one that has maybe a 20 oC range, so it comes on at 50 oC...
  17. jaydebruyne

    Fluorescin Dye

    Has anyone ever used fluorescent dye and UV torch to trace leaks in heating systems? Any good? Any reviews...? What do you guys do if leak sealer doesn't work and there are no visible leaks from boiler of rads/valves..?
  18. D

    New thermostat - does this sound right?

    hi iv just had a new thermostat fitted and it acts in a completely different way to my old ne so just wondered if this sounds right? my old wireless stat was a British gas WG1 wireless(?) which I'm led to believes re-badged Drayton(?) It did what you would expect from a stat, set to 20, drops...
  19. R

    Faulty Thermostat?

    Hi everyone, I have a central heating system with a Worcester Bosch combi boiler which was installed 15 years ago by British Gas, but on two occasions in the last couple of months the boiler has become unresponsive when I use the thermostat to adjust the room temperature. The thermostat is a...
  20. R

    Which unvented indirect cylinder

    I am looking for some advice on which 150litre indirect invented stainless cylinder to buy. We were going for a Gledhill, but the plumbers merchant is suggesting an Elson Zircon would be as good, but cheaper. Any recommendations on which to buy, or any other better brands would be much...
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