• Content Count

  • Joined

  • Last visited

Community Reputation

2 Neutral

About Rich

  • Rank

Recent Profile Visitors

The recent visitors block is disabled and is not being shown to other users.

  1. Rich

    Manifold + Secondary return

    I've been back over the plan and have come up with the manifold plan as attached (1 single manifold in the cupboard as @Nickfromwales suggested), the UVC/Sunamp will stay in the garage and the decision on which of the 2 can be made later as first fix pipework in the house is the priority at the moment. I've planned the basins sinks and showers as return circuits for comfort (although part of me thinks the showers being return circuits maybe a little overboard they cost so little to add?) as @PeterWthe manifold and 22mm feed leg should be kept warm by activating the HRC for a couple of mins a hour for any outlets omitted from the return circuits (bath + shower 1) in the same cupboard will be a manifold to feed 1st floor and attic radiators (currently trying to find a pushfit 10mm manifold) they all seem to be 15mm, this should allow me to control actuators via loxone to zone the heating. 10mm feed and return from rads? Then the ground floor ufh manifold in the garage (insulated enclosure). anything obvious missing from the above plan? anything any of you would do differently? am I still going way over the top? (so easy to do when its your own build 😂) Thanks in advance. drg 1.pdf drg 2.pdf
  2. Rich

    Manifold + Secondary return

    will be a gas boiler, size/brand I'm open to suggestions, however most of the gas safe fitters around here have their fave to fit for what ever reasons. There's only 3 of us so no real heavy use but thus may not always be the case. what I mean is since it's directly above the garage it would seem a little daft to run this from the single proposed manifold in the upstairs cupboard? Would this just be run from the cylinder/sunamp position straight up? 😂 I'm trying not to dwell on it to much, however I'm fairly sure its going to end up as the biggest mistake of the build! Oh well at least I won't have to wait for hot water to wash my hands after a jimmy riddle 😂
  3. Rich

    Manifold + Secondary return

    I could be convinced at that money, however after a small amount of research around 6 months ago it was looking like I would require 2 units due to the size of house, would this not be the case with the "12"? I think I understand where your going with this, run the last circuit on the mainifold to a point of use and then return from the points use back to the uvc. Therefore the hrc will heat the manifold and manifold feed pipework along with the kitchen circuit? Clever and something I wouldn't of come up with! does anyone make a purpose made manifold for this? or would you just make 2 up from the usual 2/3/4port offerings from jg/hep I think from the comments here this seems like the most efficient route, would you also run the shower room above the cylinder back from the manifold for ease of isolation etc? A very neat solution! It's something I could add a version of as I'm putting loxone automation in (another learning curve for me). This could be used for a similar level of control. Sadly not, I did have a quote I was happy with (circa 4.5k for 4kw in roof) however I had a little last minute doubt in the "investment"due to not having a Epc lowering the kickbacks. kicking myself a little now as the roofs on so too late and it would have only cost 3.6k once I had them take the vat off! So would have been a fairly fast payback! 😡 I think I managed to digest most of what you wrote 😂 Thanks for the help.
  4. Rich

    Manifold + Secondary return

    300L so I'll stick with 22mm. I considered a sunamp after reading a thread on here regarding them. However I then read the pricelist, I think it was along the lines of 3-4K for the units our house would require. Assuming not much has changed in the last 6 months.
  5. Rich

    Manifold + Secondary return

    The cupboard on the landing was my first choice, in fact it's the reason it was on the plans to begin with 😂 However SWMBO has long since dreamt up many uses for the space, if I was in a pinch I could over rule her but life would be far easier if I make the garage placement work. Doing away with the recirc altogether Does sound appealing however. Thanks @PeterWI was planning on using pir's to activate the pump but on second thoughts your method would be far more efficient given the way we live. Would a 22mm feed suffice to manifold 2 given the number of showers etc? I have a 32mm main due to living in Wales and requiring domestic fire sprinklers, so I could support a 28mm feed to the manifold if required. The garage is insulated to the the same level as the house with the exception of the door being a week point (45mm insulated sectional planned) so I was hoping it would be ok in there. Although what your saying could add more wieght to what @ProDave has suggested.
  6. Hi all, over the last few days I have been reading up on the best route to go whilst planning my own plumbing. I was originally set on hot water recirculation due to a mixture of the overall size of our build and not being a fan of waiting for the shower to warm up. After reading all the relevant threads on here I like the idea of manifold distribution (easy isolation, pressure loss, and less joints). Which has led me to where I am now, considering a mixture of manifolds fed via a secondary return loop to keep the home runs as short as possible. I have done plenty of plumbing on my rentals however these are obviously far more traditional systems and want something more for our own house. I will be carrying out the work my self so again I like the idea of single lengths of plastic pipe from the manifolds to point of use. I have attached a plan of our build overlaid with manifold, Boiler + UVC positions and would be happy for any thought / critique. My initial first thoughts are to lower the number of manifold from 4 down to 2 (dropping manifolds 3/4), also possibly moving the UVC to the position of manifold 2 which may negate the need for secondary circulation all together? (SWMBO doesn't like the idea of my robbing her cupboard however) 😂 Has anyone gone down this route? or used an alternative after discounting this route? DHW 1.pdf DHW 2.pdf
  7. Thanks nick, very helpful. I can see your point of view, however is this the only benefit the dedicated membranes have over this cheaper option? If so surely this can be mitigated depending on the wall buildup.
  8. Was this on a full build? If so was it successful when the air test was carried out? The pics help a lot thanks 👍🏻
  9. has anyone used a normal VCL such as and taped the joins to form a airtight membrane? Im trying to sense check this idea as it would seem to me these plastic membranes would be airtight if applied correctly. Would anyone have any advice to the contrary? thanks in advance.
  10. Thanks for the input, that can be achieved if I put 150mm insulation in the main house and then 100mm with 100mm of screed in the garage. Would standard "celotex" be fine for under the 100mm screed in the garage? Or is there a specific "high load" insulation?
  11. The beam and block design seems to use the same.beams (155mm) just at reduced centres. in all reality it's unlikely to be used for a car during our time here, more of a workshop/store.
  12. Hi all I am looking for a little help if possible. After meeting with our Architect today I have been left with more questions than answers. Our house is being built on driven piles and therefore a ring beam with block and beam on top. The floor make up has been specified as follows: Block and beam, DPM, 100mm "celotex rigid insulation", (already looking to increase this to 150mm) 50mm Screed. I enquired as to how I will achieve the required 100mm step down into the garage, the solution? remove the insulation from the garage floor build up. Now I appreciate this is a simple solution however it doesnt really sit right with me for the a few different reasons: Ideally I wanted underfloor heating in the garage, wanting the garage to be part of the thermal envelope of the building as it is integral, last but not least there will be an internal door to enter the garage off our hall, which i would rather not have an cold room on the other side of. Now after a bit of research (found a few relevant threads on here) the step down can be replaced by a slope away from the internal door. However whilst this subject was being discussed with the architect he suggested the floor makeup with insulation may not even be up to the job for the garage. Have any of you found your self in this situation? If so how did you get around it? at the moment I am thinking sufficient reinforcement to the screed layer or maybe 100mm insulation in the garage (upping to 150mm in main house) which would allow a thicker screed/concrete layer in the garage. I have attached some drg's for reference.
  13. Rich

    Hi, new self builders.

    Thanks, nothing out of the ordinary a fairly simple 3 story timber frame build (room in roof). after browsing the forum for weeks, im currently exploring ways of improving the current planned building regs compliant insulation/airtightness without blowing our already tight budget 😂 Its all part of the fun it would seem! Thanks all for the welcome.
  14. Hi everyone, new self builder here from South Wales, Currently we are at the early stages of groundworks so still a lot to do! Glad to have found the forum and look forward to the advice on offer.