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Found 4 results

  1. JohnMo
    Hopefully a quick question. Background installing an unvented cylinder. Location is remote from the cold water manifold, preventing connection of the balanced port to the cold supply. House already has a PRV just after the stop cock set at 2.5 bar. Cylinder comes with a combined inlet set, set at 3 bar. Can I just blank the balanced line off? Do I need the second PRV to comply with regs?
  2. henryroot
    Hi Nick I have a similar problem with a slow pressure drop with a new Vaillant Ecotec Pro 28. Daft question but how do you find the leaks and where are they? Before I had this new boiler fitted we thought there was an underfloor pipe leak as two radiators required constant bleeding. All radiators work fine now except one upstairs which is a bit slow but we don't get any air in them at all now.Any help much appreciated as I must have topped up the pressure about 6-10 times in the last 3 months. The plumber says it's not the boiler but that was some time ago. I am also a little concerned about the use of leak sealer. Plumbers must have put about 3 lots in during the last 6 months but so far as I know Vaillant do not prohibit this. If anyone knows otherwise please let me know thanks. Last but not least, I can't find the PRV on my boiler, there certainly aren't any external pipes. All pipes are well insulated and I am wondering if it was plumbed into the condensation pipe which seems to be constantly dripping down the drain. It's a large diameter pipe so no problems with icing up ;-)Thanks
  3. Fallingditch
    Old edwardianl house with a forty year old central heating system. Modern Vaillant combi boiler that has to be regularly repressurised with mains water. This suggests a weeping joint in the system somewhere - but there us no visible evidence - may well be under the ground floor floorboards (or elsewhere). What is the best approach to finding the source of the leak? Are there any tools available whch I could hire for instance?
  4. tonyshouse
    Can a tundish have two inputs from blow-offs/relief valves or should each valve have a seperate dish?
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