Nickfromwales

Yup . Question is of cost of wood, convenience / inconvenience and how much heat your home will withstand, and for how long. Some folk are happy to tend to a boiler, I'm not one of them. Do you have block or TF ground floor walls?

I thought they were the pump sets from the ST A very commercial inspired install but very neat and well laid out. So the pump sets negate any further equipment at the manifold ? Eg you just have flow and return to the manifolds, and they don't have pumps and blending valves at those satellite locations ? Whats the dip pipe you've fitted to the accumulator? Quite interested in that, but I negate the 'fresh water' issue by buying accumulators which are bottom outlet, rather than the top outlet you've gone with That massively reduces stagnation vs a top outlet one IMO. Good to see the Armorflex fitted snugly, and plenty of it. That a typo? Ecotec? Have you gone with the system boiler? If so, it has an integral 6m pump so you'd have only needed a zone valve for the cylinder tbh but assume the reason for the stations and pumps is to 'drink' from the low loss header where I also assume the ST and the boiler flows combine. Have you set it up so the ST is able to help with space heating, eg the reason for the low loss header.

Look closer........there's a mop close to hand. I wonder what mops are used for

I doubt a plumbing firm in Toronto will get much business from us in fairness.

When I say to the builder I'm currently subbing to, "I'll be back in an hour with the parts" he asks if that's a builders hour or a plumbers hour...........so when I said later let's assume I meant a day later OK Source : I would recommend Telford. S/S : A no brainer for me, deffo yes. Plumbing : If there are rads and they are regular steel, then there is the problem of corrosion contamination which you'd ideally want to design out where possible / practicable. I'd probably say run the towel rads from a coil, via a dedicated 2-port manifold, and run the space heating ( ufh ) direct from the body of the TS via a second dedicated manifold. Benefits therein of being able to select the time and temp of each application to suit yourself, eg being able to run the towel rads when the heating isn't necessary but warm towels would be nice. C/V/P : Room stats to Ufh control, ( multiple stats for multiple zones if required ). Time clocks for towel rads control. 2-port zone valves to achieve both previous. Pumps on manifolds will suffice regarding flow to the manifolds from the TS. With a TS, I assume you'll know you'd be using a system boiler and not a combi as the TS would typically then provide dhw ?

As per my last then Any rigid pan connector can be cut to make it 'short', but a flexible one cannot, thus forcing you to make the connection sub-floor level if you chose the latter.

The biggest shits will be the bco's

I'd not recommend 80mm myself, when you can use 110mm with you having no real reason to deviate from 'standard'. Wall hung ( Geberit etc ) have 80mm pan connectors but they increase to 110mm within 300mm with the supplied adaptor. That takes them to 'our standard' from European standard. Our pan connectors are narrower bore anyhoo so 6 and two 3's imho.

Is it only the WC onto that vertical rise? Your allowed around 1300mm before you really need air admittance so you should be fine with a direct termination to the WC. Any standard WC will have 7" centre for the outlet and enough room for that flexible bent pan connector. Personally I'd recommend a solid unit as that flexible one will end up under floor level where it changes from flexible to solid. Making that off to the finished floor will be a challenge for you that I'd rather dodge . Mark the WC centre and bring the soil up according to the WC of choice. Of course, that means buying it now but I wouldn't suggest any other way if it were me doing the job. The rigid bent pan connectors can be cut to length and will allow you to bring the 110mm pipe up through the floor slightly and then you can seal up with ease against rigid pipe instead of fragile flexible pipe. That make sense?

Oh, and +1 on a back to wall wc .

What's the vertical drop between the wc outlet and the bend in the soil run ( to horizontal ) ?

Your timing is terrible, that's all

Personally I'd want the timer so I could specifically dictate when the events were. Have you considered remote PIR's so you can aim them accordingly ? That would avoid unwanted / nuisance triggers.

Sika do a system for exactly that Demo here

Rotund plumbers?

Your on your own here mate

The convenience needs to be a two way street. If there's an excess tax accrued via the arrangement then it would have to be at least a 50/50 split IMO. It's just down to how much you want to get 'out' of the old house and into the new one tbh. Cant say I've ever heard of such an agreement / arrangement, but I've often thought about it.

What about slender Americans?

A bit of reading

Seems quite easy to source One example

I'll reply later . In a 'high power' business meeting at the mo ??

Download the MI's for the boiler you wish to fit, and the specs / stats should all be in there

The mesh reinforces the slab, adding immensely to the integrity for one. I'd not even think about not fitting it tbh as it's cheap as chips and gives you a grid to attach the pipes to. Has your engineer / BCO specified no re-bar ( mesh ) ? I'd have thought it would be a given.

Dont kick a man when he's down eh?

I was welling up reading that. I feel your pain. I still won't sell or give away my first Dewalt combi drill which went around the world with me for 5 & 1/2 years.......and STILL bloody works ! It'll stay up the attic until I get buried with it. At least you 'other child' is only 15 mins away, so you can visit whenever you like. Couldn't you have arranged custody ? Every other weekend or something ?!?