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  1. R

    Legislation affecting solar thermal

    Given that solar thermal is an uncontrolled heat source, does one have to have any specific qualification to flush and refill a thermal system if the system is heating an open-vented (gravity) hot water system? For clarification, the primary solar water is a sealed system, but the secondary hot...
  2. R

    Setting up a balancing valve on a cylinder coil on Y plan?

    Whether it be the usual gate valve or the more correct lockshield valve. Jennie raised a point elsewhere on this forum and someone mentioned the purpose of these being 'by reducing the flow, the coil will remain hotter longer. Thus heating the water quicker'. Makes no sense to me as reducing...
    • Ric2013
    • Thread
    • cylinder valve
    • Replies: 2
    • Forum: Boilers
  3. R

    Pressure reducing valve - is this normal?

    Hi. Just been shown a job by an engineer friend who likes to mess around with things. He's fitted a pressure reducing valve to the supply pipe to a heated outbuilding. The mains pressure is 5 Bar, the valve has a gauge on it showing 2 Bar when taps are closed. He helps me out, so I don't...
  4. R

    "I might get another price, if that's all right?"

    I said it sounded like a day's work, so £170 labour. Not seen it, so was a guess. Replace bath taps Replace mastic around bath Replace some tiles behind a towel rail (customer had new heating system fitted and the RGI fitted the new towel rail over an area of missing tiles and thinks it will...
  5. R

    System filters change the polarity of the water

    System 'filters' eg Spirotech, Magnaclean, TF1, I was told today, 'change (or reverse?) the polarity of the water'. My comment was that I have never seen any manufacturer make this claim... and considering they make all sorts of claims, I'm surprised they haven't used this in their marketing if...
  6. R

    Expansion vessel on a flexi - illegal?

    Saw a photo a customer showed me of what seemed to be a flexi installed on an expansion vessel serving a small electric water heater by someone he found who was cheaper than me. I say 'seemed to be' because I'm not sure from the angle of the photo whether the flexi was attached to the vessel or...
  7. R

    S plan/Y plan hybrid system needs a name

    So I've decided I will be converting my system to a low loss header (well, close-coupled tees as I'm cheap) and running the UFH off one pump and the rads and cylinder coil off another. With a pump on the primaries, that is three pumps (to make up for the fact that the new pumps are more...
  8. R

    Apprentice Water Regulations Officer

    Hi. I am currently in the process of being interviewed for the above position with the local water board. It sounds like a well-paid, secure, job, but I am aware that you really have to like the job you do otherwise you end up leaving and are neither well-paid nor secure :) so I don't want to...
  9. R

    Theoretical questions regarding low loss headers (or close-coupled tees)

    T'other day, the subject of hydraulic separation came up again on this forum and I decided it would be interesting to look at the subject again. Thinking about the kinds of design shown on this page: Why all the fuss about hydraulic separators? Closely spaced tees have worked just fine for me...
  10. R

    Conversion of the national gas network to hydrogen?

    The other day, I met up with a friend who has contact with 'green' groups and who hears a lot of alternative technology ideas. Apparently, hydrogen may well end up being produced as a means of using excess electricity when renewables supply exceeds demand (i.e. as a battery, or a means of...
  11. R

    My Husband used to do all the plumbing? What is the worst DIY plmbing you have seen?

    Good work. I always do them that way as I think the bigger the depth of trap seal, the better. Nice to see my method is catching on :)
  12. R

    Potterton (Netaheat) Profile 40e from 1988 - worth powerflushing?

    Okay, so my boiler kettles fairly badly once it reaches a moderate temperature even under conditions that are allowing good flow rates. Having resolved the system air ingress, let's move on. The Netaheat Profile (later rebranded simply as the Profile) has a cast-iron heat exchanger. It has...
  13. R

    "Fluxuator" electrical tool for fluxing pipes

    Anyone seen the adverts for this in Installer magazine? It reminds me of the Betterware hammer that had a hollow handle and dispensed the nails to make driving nails a one-handed job. Which I also didn't buy.
  14. R

    Three lovely gas meters to cheer people up

    Lovely and tidy... Photo of a photo I took, apologies if the image quality is lacking... Ric
  15. R

    Going to be nvq2 but still not allowed to DIY at home?

    Some buyers will find every possible excuse to push the price down, but other buyers won't. In fairness, it's sometimes a matter of bluffing as all a buyer can possibly expect is to get the house at a fair price. A relative of mine recently sold a house she had owned for nearly 30 years and it...
  16. R

    Having Fun With Some DIY Plumbing

    I must say, design aside, which I'll leave to you and the legislators to decide over, that is tidy work and impressive. I just hope that you aren't being fooled into thinking this is going to reduce your total environmental impact by a large percentage?
  17. R

    Oh dear.... another DIYer

    Don't know that that's quite a fair comparison. A DIYer may not have the money to pay a professional (though they can afford to redecorate, apparently) and we're trying to help out, on the basis that they do the work and take the risk. This is the sort of job that, quite frankly, I'd rather a...
  18. R

    Oh dear.... another DIYer

    Cash in hand and not his main source of income?
  19. R

    Bathroom room thermostat

    Hi guys (and gals?), Anyone fitted one of these or similar? : Underfloor Heating Thermostat with Bathroom Remote Air Sensor Reason is I need the room stat for my second heating zone to be in my bathroom (long story and not worth the digression) and can't think of any other solution. I note...
  20. R

    Rookie DIY Mistake - Advice needed

    If 75°C at boiler, it will be very close to that at radiator. Might lose a degree or two, but no more than that sadly.
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