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  1. J

    How to add chemicals?

    Just wondering what the easiest way is to add chemicals (e.g. inhibitors) to a closed CH system? 1. Inject into radiator valve with mastic gun (e.g. for Fernox F1) or 2. Use a magnaclean or 3. Use the towel rail in the bathroom Sorry if its a silly question - I'm new to all of this...
  2. J

    Boiler buddy or Magnaclean?

    Hi all, just ordered a Worcester CDi30, and before installation I have a few quesitons: 1. Which is better - Fernox boiler-buddy or Magnaclean? 2. Do I need a limescale inhibitor (I live in London)? According to Worcester-Bosch: "As the maximum temperature of the domestic hot water...
  3. J

    Inhibitors & Cleaning products

    Thanks for all the advice. I'll ask my corgi registered plumber too, but its good to know beforehand what kind of things I'll need. Many thanks, Garcia.
  4. J

    Inhibitors & Cleaning products

    Hi I've just bought a worcester greenstar 30 CDI condensing combi boiler and need to know what products I need to go along with it. I've been told to get a quality inhibitor, but not sure which one. Can anyone advise from here please...
  5. J

    Which (condensing) Combi?

    Theres 2 ways of reading that! Either they are so crap that the only way to shift them is by giving a 5 year warranty. Or they are so good that they can afford to give a 5 year warranty. Which one did you mean? Ok thanks very much for the advice. How do I go about cleaning the radiator...
  6. J

    Which (condensing) Combi?

    Hi I'm replacing an ailing Potterton Puma 100 boiler which has given me nothing but grief with a new combi condensing unit. I'm torn between a Baxi Platinum (because of its 5 year guarantee), and one of the Worcester-Bosch Greenstar range (probably a 25si). Basically I need something which is...
  7. J

    Calculating Boiler size

    Thanks baxpoti. So presumably something like a 25kw will do for a 4 bed semi with 1 bathroom?
  8. J

    Calculating Boiler size

    Hi I'm about to buy a new combi condenser boiler, and have a few questions: 1. In the boiling sizing tools available on the internet, for a semi-detached house should I list it as having 2 length-ways walls or 1? (it has 2 walls obviously, but 1 is exposed, and the other is attached to...
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