Dave Jones

a normal plate wacker will be fine unless you plan on parking 40 ton artics in the living room!

The only issue you may have is the filter getting blocked up with dust/flies etc. I was amazed just how filthy our intake filter was after just a month, it was black. Zehnder recomened 120 days but im changing them 30-60.

sectional tracks will sit behind the reveal and hang from the ceiling so doesnt matter if the rafters are not level, they will level the straps.

if you have budget, id go for electric underfloor in bathrooms so you can use it in the summer when you dont want the rest of the heating on. As i mentioned earlier with karndean its not cold anyway, ceramic tiles are different of course.

any builder who needs a welfare cabin would be off the shortlist immediately. They are there to work.

pull off the 3 way solenoid, set system to dhw and not which direction the solenoid turns. manually turn the valve to DHW position and refit solenoid so when it returns to heating its turning the right way.

why would it ? It's not in direct contact with soil so as long as cavity remains dry (tray) wil be fine. stick to scribbling.

have a look at https://www.intelligentchargingsystems.co.uk/products/5106632-5-12-kwh-home-battery-storage-system#product-specicifations £2kish

looks cheap, a powerwall 3 is £7k. I have the powerwall 2 and its great. It's not an in roof system though so will not look very good hanging out the roof. Some properties it doesnt matter but some it does to be aware.

bottom up blind and a stanly knife ? https://www.orderblinds.co.uk/dept/perfect-fit-bottom-up_d01359.htm

who's decision to use reclaimed instead of new ?

sit them on marmox blocks. they are structural.

looks to be a type of ludlow, take it to your nearest merchant they will tell you. https://www.roofingsuperstore.co.uk/product/marley-ludlow-major-interlocking-concrete-roof-tile.html

add a tray with weepers

turn it over

While it may be good in principle, in reality how do you do it ? Infil plots are rarely large enough to plant extra trees and who wants trees anyway with the potential for damage and maintenance. It's just a tax plain and simple.

just the normal house NAPIT type cert was all we needed.

id let them add all the conditons they like, secure planning. then appeal the conditions with costs. its free so nothing to lose. Unfortunately dead head civil servants are completely unaccountable in the country so can literally do what they want with zero repurcussions.

overthinking it. just leave them on auto with a fan on/off temp set then let the heat pump control them.

ideally you should be using marmox on the inner skin all way round anyway.

not true actually. If it were the case the bank would be on the hook for all the liability and you would be a tenant. You are allways the owner, the bank has a legal charge is all.

id stick to 75mm screed, not much cover above the pipes with 50mm

i did think the same but its massively more costly and hassle to do underfloor for 1st floor. In the end its not needed, if anything upstairs is too warm at night even with heating on fallback after 6pm. Bathrooms we have electric wet rads all controlled by home assistant as somewhere to dump spare solar/free sessions and ride the cheap rate sessions. Karndean floor is not cold once ambient air temp is 21 anyway.

needs planning, truss company needs to know so they can account for the weight, will probably need to sit on a stud wall below to take the weight. You need to lift it 400mm off the 'floor' of the loft so you can insulate under it, there is risk of freezing. https://www.discountheating.com/telford-tempest-300-litre-unvented-horizontal-indirect-heat-pump-cylinder.html