lizzieuk1

Thanks Ian, I'm not sure about the Springvale deal, our upstands appear to be xps on the base with an eps upstand. Looks as though Springvale only use eps (as do FutureFound/Buildlite) so I'm not sure if that would be an issue - assume if the strength is equivalent it shouldn't be. I will call them though. I've tried to contact Olaf on his mobile but its not accepting calls. Not tried email yet but will do that. We can source the xps base material easily but the eps is an issue, we need a 90mm but appears it's in 80 or 100 and the kpa rating also difficult - I think we need 100 but not 100% on that, it may be 200! Again, proving hard to source. Currently looking at parapet upstand boards, can get those in 86mm or 106mm 300kpa xps but either a bit big or a bit small, not ideal but may do the job. Nothing simple as a solution thus far 😬

Thanks all for your support/advice. Agreed, we will make them up ourselves. Have had to upgrade the xps400 to a 500 version as appears the 400 is elusive. We shall prevail!

Oh lord, I could cry. Sorry its long but please read! So, having thought we'd have no issues with AFT (insulated raft supplier) going out of business we have, according to the law of sod, now got a rather large issue. We've, for various reasons (some self influcted, others not) been quite delayed starting laying our insulated raft so, it has been safely stored away in one of our barns for the past (eek!) year. After carefully completing the ground works/drainage over the past few months, with what felt like a ship load of pea gravel! all has been fine, levels all spot on and finally, this week we started laying it all out. So now we are at the issue. We carefully installed the perimeter L Elements around 3 sides before we realised, oh bu##er, we don't have enough, we are 3 short! I initially thought it was our fault for not counting them all on delivery (stupid, things were a bit chaotic on the day unloading a huge lorry) but, after cross checking paperwork it looks like AFT didn't actually order enough from Benders! On the original quote from AFT we have 45 detailed but, after double checking the order directly with Benders, there's only 42! I hadn't expected to need to check AFT had actually ordered enough, assuming it's their mistake and not Benders as, obviously, I can't see what AFT sent to them! So, here we are up the proverbial creek without a paddle. Falling at the first hurdle, not a great start! So, please, opinions/advice on how to get us moving again. As we see it options are: 1. Contact AFT for help? I have a contact number (that works) for Greg, but not sure how far we'll get. Left a voicemail & text yesterday (after speaking to him earlier in the day about a minor corner detail, before we found the big issue!) but no reply yet (not a great sign) 2. Try to source from someone else, Benders are Sweden based and don't supply direct but, maybe someone in the UK is getting a delivery from them we could piggy back on. Buildlite/Greenraft i think use similar elements but time likely a big issue here. 3. Manufacture our own L shape elements - doesn't look too tricky (am i being naive here?!) Xps base glued to eps upstand then render the exterior. Then, shutter like mad before concrete pour to ensure they don't fail. Hubby keen on this option as likely much quicker. 4. No idea what else, all suggestions gratefully received! P.S is it too early for Gin?!

Sorry, just seen this! We've not quite finished the install, been doing another refurb too so that kept us busy over summer, but, we have had everything on site for a while now so no issues with materials. It is a real shame AFT are leaving the UK market, I found both Greg & Olof very helpful and hugely knowledgeable and, the system is really well designed. Hoping we won't have any issues going forward, I think I ironed out any tech questions with Greg a while ago - should be finishing the raft over September so fingers crossed it all runs smoothly.

Hi, Sorry only just looked on BH. been in 'the trenches'! Honestly, i don't think our bc could care less what we do at the pond, he's made no mention of any of it. We're quite happy with that though! We have read about having a headwall and do intend to put something in that will stop any erosion of under the outlet as makes sense to us to do that. I don't think it needs to be too extensive, just a small brick or block 'wall' type affair, with the pipe set into a concrete pad directly under the pipe so it can sit snugly. Regards the regs for it, I cant say i remember reading anything but, you could always ask your BcO to ref the docs for it as he seems so set on it! Drainage is certainly a minefield though!

Nick, we've abandoned the multi room option, it's just far too difficult to design. Just spoken to our installer and he has said even Panasonic acknowledge that the systems just aren't quote there yet in terms of design and individual room control. All needs more thought by their techs to get a system that people can actually install without loosing their sanity!

Sorry I've confused things! The ducts are in relation to a multi room fcu. Abandoned now....

Hi, I've sent you a dm, any chance we can get tye Panasonic contact from you? I've spoken to Panasonic uk and they have provided a unit spec but, they have said they don't usually design the ducting runs, how did you tackle that? Our intended installer seems to be struggling with that aspect!

We've not planned to, all our surface water will end up in our large storage pond so, no soakaway blockages etc to worry about.

Trying to figure out the regs for rainwater pipes. We have a couple of 90 degree junctions and one at 45 degrees on our rainwater pipe runs as they go around the hpuse perimeter, can we use rodding points on those or do they have to be inspection chambers? Also, is there a minimum depth they have to run at without needing concrete protection- will all be below paving or garden area.

Agree, 92mm duct is best. Is the Brink cheaper though? I'm not finding much difference online (in fact the Brink seems more money) any links you could share for that Nick?

So, PaulHeat have calculated as below, I think that means we need a unit(s) to do 438 m3/hr max. They suggest either 2 x zehender 450 or 1 x 600 - I'm not sure why if we need 438m3/hr, we can't have 1 x 450, is it to do with the l/s do you think? Anyway, if we need one or other of those options any opinions on 1 or 2 units? (We may go for the Ventaxia units but undecided, same Q re 1 or 2 units though) Initially I thought is it easier to have 2 units so that we have less logistical issues ducting from 2nd floor plant room to gf (we could put the 2nd unit in the utility room on the gf) but, I'm not sure if that's reason enough to buy 2 units! Any thoughts?

No need to panic! They are definitely going to do room by room calcs, all mcs certified. We're just at the initial design phase so once everything is firmed up on that will proceed to final design with full calcs. I was reading about your program and it looks really good - once I get time I will have a go with it for our design and give any feedback I can.

It's a valid point Nick, I suppose there could be some short term variation room by room and, perhaps more so floor by floor with insulation between floors having an effect, but I guess overall the temps will balance fairly quickly with flow round the house via the mvhr anyway.

Thanks Simon. I've not had any contact with Panasonic, I've left that up to the person who doing the install - he seems to be struggling with a fan coil system design, initially it was a spec for the ducting but now seems the more complex issue of whole design for pressure drops etc if we went for a multi room fancoil. I think we've almost ditched that option now as seems far too complex to sort out so, looking to do individual fcu in each room instead, obv more pipework needed but I guess it's swings and roundabouts compared to the multiroom option.