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    Different floors prep

    Looking to have Karndean flooring in kitchen. Floor is currently made up of floor boards in original part of house and concrete screed in extension. Its effectively all one room now so need to prep the floor ready for covering. Would it be wise to lay 6mm ply on existing floorboards and...
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    Spreader pipes

    Can anyone advise where I can get INTERNAL stop ends for 22mm pipe. Was advised to use these to make up spreader pipes for within a cylinder. However, all the merchants I have tried either don't list them or have never heard of them. BES included. Thanks
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    DIY Heat Bank

    PB seems to be talking about commercial ones so obviously more complex. Yes you are right, I'm talking about adding a PHE along with pumps flow switches etc. Its just that I've seen basic diagram then others add that it should have this and that. Not seen the completed optimum model! If it...
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    DIY Heat Bank

    Has anyone successfully made an effecient fully working heat bank. If so would they like to share details. I really fancy having a go. Have seen a few posts but seems that those made are not quite as they should be.
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    Backup for a combi ?

    Its not that, Tony. I need to replace my existing system as explained in the following post: //www.diynot.com/forums/viewtopic.php?p=496490#496490 Someone on Screwfix forum suggested perhaps 2 combis in tandem as solving my problem as apposed to megaflos/heat stores etc. I just...
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    Backup for a combi ?

    Paul, Have you tried this approach anywhere? I'm considering doing just that.
  7. I

    Vented, unvented or Combi???

    <<It's the MIN pressure which matters. Try asking your water supplier, though Thames now only say "minumum 1 bar". >> When I said max 4bar. This is because when I have overfilled my existing combi it never goes past this point on the guage. So I'm guessing its around the 4bar mark. Need to...
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    Vented, unvented or Combi???

    Yes, do live in a hard water area. Just measured flow rate at kitchen tap as follows: 1 tap full open = 16 litres/ min 2 taps full open = 12 litres/min Believe pressure to be max 4bar
  9. I

    Vented, unvented or Combi???

    I need to replace my tired combi but not sure where to turn! Background: Have a 5 bed house with 1 bathroom, one en-suite, downstairs cloakroom, utility room and kitchen. This equates to: 1 bath 2 showers 3 basins 2 sinks washing machine & dishwasher. 7 rads + 2 towel rails upstairs 8...
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    Combi not firing up on HW demand

    It was the left hand one I replaced as definately had a split in it. Unfortunately, hasn't resolved the problem. There is definitely something wrong in the Mainflow Switch area ( I think this is the one you are referring to on the front) as it does not trigger at all. I've inspected it and...
  11. I

    Combi not firing up on HW demand

    I have an Ariston 27MFFI. Problem at moment is if I turn on a hot tap, the boiler does not always fire up. To make it work, I have to go to the sink that is right next to the boiler and turn that hot tap on at the same time. Once boiler fires, I turn that tap off and water flows to the other. I...
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    RSJ bearings

    Hi all I have a 290mm wide cavity wall. Each wall is 4" wide and made of block. About to make an opening of approx 2.5m and insert an RSJ above to support. (Yes BCO is well aware!!) Structural Engineer screwed up slightly so not 100% sure on padstone size to use. The depth is stated as 150mm...
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    Padstone / lintels

    Thanks for that. What mix would you recommend for the "on-site" block? Does it need reinforcing or maybe chicken wire?
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    Padstone / lintels

    Can anyone tell me is it OK to use concrete lintels as padstones to rest a I section UB on? Just seems lot simpler! If it makes a difference, beam is about 8'x 7"x4". Padstones supposed to be 8"(l)x4"(w)x6"(d). If OK, what mix should I uses to set them on? Does the beam sit on a mortar mix or...
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    Which heating system?

    Need some advise on the type of heating system to go for. I bought 2 semi-detached houses and knocked them through to make a detached. One of the semis had a combi boiler, the other had nothing! I've had the whole house running on the combi for the last couple of years but its really not...
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    7 inch skirting and mitre saws?

    1andrea, do you still need a wide mitre saw. I may be able to help you out. if you do. ====================== email address removed, see forum rule 7
  17. I

    soil stack relocation

    I came across it today from Marley though its 10" not 8" (the chamber that is!!).... "250mm bottom outlet inspection chamber The 250mm bottom outlet inspection chamber UAC02 provides a multiple collection point for branch drains from one or more dwellings and may also serve as a rodding...
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    soil stack relocation

    Hi everyone. I am moving my soil stack from one end of the house to the other due to bathroom relocation. Want to use original underground connection point so having to run horizontal UG pipe from base of new soil stack position to it. Question is what sort of connection should I make. Just a...
  19. I

    Air pressure switch

    Hi I have an Ariston Genus 27MFFI combi. Recently it has developed a problem where the air pressure switch does not always operate. What will happen is the boiler will light then after a short time, the burner will go out but the fan still spins. Then the boiler will re-light again. This cycle...
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