dpmiller

RTU

that screed quote is well over twice ours...

have you the 50mm to spare?

strip of self-adhesive foam rubber? Bed and damp the slates in one.

how close is it to the plant room? could you (say) loop the return from the hot tank to the boiler through the room?

Did ours ourselves (clay tiles). Felted and battened by the TF crew but we did the rest and saved a fortune in the process. But would I do it again? not so sure...

@Declan52 is there any way of getting that clean blueish-grey that the local wetdash tends to be, in a rubbed up coat?

generally the gubbins of the unit bayonets into a bottom mounting boss so possibly no need to remove the cistern.

why do concept, developed design, and technical design all look the same to me?

to go through the timber frame on ours I used these: https://www.schiedel.com/uk/products/additional-ranges/ignis-protect/

Now it's not much more than an anecdote but... there's been s few sunny days this week. Reported diversion is about 10kWh per day (yes, I'm running hot water off every evening to pull some energy out of the TS) bringing the store back up to 88c and both stats satisfied. I've been able to do some monitoring of the DHW coil performance in the process and can see that the deltaT between store and flow out of the coil is around 10c at 10l/min sustained, less at single-tap flow rates. Plus the coil's volume means it's even better than that for a quick handwash. Oh as 20secs for hot to the ensuite which is about the longest run in the house. But what I find more interesting is this. I've been having difficulty believing in the heat loss calcs for the house, it's hard to wrap yer head round such a big house only taking a few kW to heat it. So while I'm surprised, I'm also pleased to see that since commissioning the TS evening temperatures in the house have dropped between 2 and 4c from a stifling 22-24c to a rock steady 19-20c. And all because the silly wee 800w halogen heater that I'd connected to the diverter isn't trundling away all day...

or you could go poured and down to 50mm

iBoost is more configurable and can drive two loads, plus has the option of the Buddy remote display

would the steel bend up a touch?

There are plenty of blokes in the local papers that do extensions and stuff. I'm gonna say try running your design past the chap that did ours from scratch as he's... good. PM on the way

Have you desgns finalised or do you still need some fine tuning done too?

I have two apps- Network Cell Info and Cell Tower Locator. The former tends to show the coverage centre of a tower whereas the second has the actual tower location

the grey bits are European sized IIRC.

why is copper a must?

Love a neat bit of TIG

It's an Afriso pump station for the boiler stove, Like a Laddomat. Recirculates the water in a boiler stove until it heats to a useable temp before letting it into the tank. Improves combustion efficiency and boiler life.

Fakro do a smart sealed and insulated door for this kind of application,. We've a couple of similar spaces in ours ( however they're "inside"in terms of insulation and airtightness) and we put a pair of these doors in. They're pretty good quality and not at all expensive https://www.fakro.co.uk/products/all-products/loft-ladders/dwk/

Hot-press plumbing done, give or take. Just need to bring some cables up to a wiring centre on the wall and that'll be it for now.

It's as supplied, but I'll look into a copy of the MIs for the valve itself, thanks. OK for completeness it's a Reliance tempering valve and good to 99c

OK so what's the normal max to run a TS at? Fairly sunny today and both immersions (upper as master, then the lower one) have tripped their stats with the tank now at 82c. Aim for 85c?