Oz07

I watched the urban plumbers youtube video where he made the storage combi. In the comments someone mentioned a couple of high flow combi boilers there was the worcester bosch 50kw which can do something like 22L per min and a Navien 54kw one which also has a high flow rate. Does a boiler like this tick the boxes @Indy? you'd be getting 2 showers at once with minimal complexity

Is there any benefit to internal/external stacks. Assume same temp air inside them so no thermal differences? Just neatness u suppose but square boxing in corner sometimes ruins the room

Just fill it up then as you say see if water drops. I normally put 1m stubs on pipe and test each run when coming out of ground.

Hard to see the plan with it being a photo. Nice big house. Gf toilet looks a bit cramped to me for the scale of the rest of the place.

I just think they would rather deal with something when in occurs and seek to reclaim any costs if applicable afterwards. I just can't see a massive water company coming out to replace a section of sewer for pvc as a preventative measure. Although you do say its already leaking. Is there a build over agreement for this work or not needed?

@JohnMo you've not really answered my question, are you a politician by any chance?! In all seriousness im beginning to come round to your ashp way of thinking but It seems to me you have to be quite clued up, almost an engineer to make sure its designed and set up right. Can they not recharge water as quick as a gas boiler then even if rated to same kW? Does op want the gas to get away from all this boffin stuff @Indy?

They all seem to have these little pvc boxes on now, with holes behind which vent them. You see them on containers in self storage places so they must be good. Have a google for them. Tbf some site containers have panel heaters in too. Might be worthwhile if you have elec.

Good answers here interesting thread. Without wanting to derail too much how do ashp users cope with this scenario? Can they heat water just as quick as boiler? Is it all just about having enough kw? Or do you need massive tanks with elec only system.

Can't see water company doing anything themselves at their cost.

the scissor lift seems like an upgrade! You might have to cut one end of the guardrails off god knows they're hard enough to get in without a wheelchair!

Don't brick manufacturers still have ancient deals where the first merchant to submit an enquiry with your plot gets a % of the sale regardless if you go elsewhere? I've also had it where you get a quote off truss or floor beam or lintel company direct. Tell a merchant and they say we get x% off that and they split it with me for the order. You're right its a minefield

Vexgold worth a call but I don't know how you guarantee its good quality. Have to be there on delivery to inspect and be prepared to send back. James Latham are a bigger nationwide outfit might be worth a call too.

I've always just used the structural slab as the only floor when building with a ground bearing slab. Not used UFH in those though. I normally do hardcore, blinding, dpm, insulation, dpm 100mm slab and job done. Use the self compacting concrete to get a good flat finish. Bet it would be squeaky bum time putting some crack control cuts in the slab with UFH pipes in there! I can't see the logic in putting 2 floors in but obviously each project is unique and has reasons.

Im sure you're right but I think there's a few to many physics / heating boffins here who don't realise how clever they are. Us layman just want our boiling hot rads and open windows!

Why 170mm on top of 100mm slab. That just seems crazy to me, sure there is a reason? Why don't people just put the ufh in the floor slab and have no screed with self compacting concrete? Do you have to increase the thickness to allow for the pipes interrupting the continuity?

Can ct1 be used for glazing units or does it effect the black rubber round the edge? I know silicon is a no no but its hard to find something paintable that is good for this in timber windows

is your house roughly 250m2 net internal space then? If you have a look around here at build costs you could be anywhere from 250k-upwards of 500k so there is a lot of wiggle room on the figures you submit to lender.

Just make sure you have separate building control applications then and explain your method to the BCO he will work with you then hopefully

Unless you stockpiled them during the house build 🥷

When I applied for a self build mortgage years ago your cost estimates could be done by yourself and I suspect along as they were within a certain range per m2 then this passed muster. Just to make sure the borrower isn't in dream land. How big is your house m2? I reckon you could just adjust your figures and lose 40 - 60k on 460k and you'd still pass their checks. With your figures above are you saying the mortgage would need to be 460k because of the VAT? Providing you can comply with your planning conditions and provide enough parking spaces your probably not obliged to build the garage so your plan sounds ok to me. I'm not sure if you'd have to start telling your mortgage company about this it could probably just open a can of worms. Then when your VAT reclaim comes through you can finish off any externals that don't stop you getting your completion cert off building control. It's probably a good idea to split you building control application if possible and going down this route so you don't end up with a place they wont sign off until garage built. Need completion cert for VAT reclaim I think. Depending on garage location and size you might not even need to include on your building control plans although at 50k build cost I assume its quite a decent garage?!

I went the hillbilly route and bought a webber bbq. I'm outside in whatever weather doing all the smokey/greasy cooking. Try to keep inside just for boiling things and non greasy stuff

Yeh the timber frame smoking is understandable, i'd be saying you can only smoke outside. The radio i'd probably just say don't take the piss with the neighbours as you have to live next to them. Fair play for finding good guys who have got on with it regardless though!

Am I the only one not pensioned off yet 😅

No radio and smoking would exclude a lot of good contractors from your site round my way. Seems sensible otherwise.

I honestly think with all the regulations the best thing to do is stick your head in the sand and take @nods approach. Your head will explode if you try to cover every eventuality. Even the big boys who lobby for alm these rules cant get their paperwork in order. I have never once seen anyone read a rams or method statement on an induction everyone just signs them. Get some site insurance, try to get it as comprehensive as possible, make sure subbies insured, common sense safety and hope for the best.