MikeSharp01

You should be so lucky.

I have the Bosch GLM 50 C (around the £150 mark) although its has an accuracy of of +/-1.5mm it will measure to 0.1mm if you fire it with Bluetooth and don't hold it so you can detect tiny wobbles / vibrations. I don't like the battery life, which feels like a couple of hours when you are working it hard but otherwise it is a great workhorse.

I quite like OnShape this is very like solidworks in interface terms but is browser based and more than fast enough, it also has full collaboration features so several designers can work on the same drawing / part / assembly at the same time. The free version, marketed for the maker community, has only one limitation in that every part you draw is open for others to work with (not shared). It creates all the standard file types.

Recess the vent - much the most likely to work and simplest.

Sounds like theft - get a crime number and / or start harassing the local Police to step in and investigate - they perhaps won't but maybe worth a try?

How about the whole reframe thing. Convert the current connector into a great looking pendant fitting, perhaps black to match the light fitting, get some similarly great looking cotton covered cord and run (loop down, over and then up) it into neat gland (you will perhaps need to spray that one) on the pendant box which can then go anywhere you like. See what the committee says.

Well done for getting this far and providing your insightful advice.

I think there is a recommendation on this 2m springs to mind: have a read here

That will make for an interesting balancing and control scheme. Sounds like you have done all you could - have you checked the penetrations to the roof have all sealed & flashed correctly and that any moisture getting into the ducting (condensation / wind blown rain) can get out / is otherwise dealt with safely?

The very definition of hysteresis🙂.

This feels like the age old challenge of trying to navigate past the technology wins that proprietary systems want to make so as it keep you in their fold all the way through. While I get the basic business logic of this idea for the companies concerned (Loxone / Honeywell / ....) it makes very little sense otherwise for several reasons. Firstly from the overall efficiency point of view as none of these companies do it 'all' and they always end up needing / offering interfaces that allow the bits they don't do to be sourced elsewhere - it is in fact classic defender mentality at work. Secondly wanting a sophisticated system does not / should not equal getting a complex or chaotic one. Open source thinking like MTTQ & node RED, similarly maker technologies like - RPi / Arduino, do allow the construction of accessible systems albeit without sophisticated documentary support and, thirdly, in the era of IoT I am not sure that many of the proprietary systems will last. As it will be expected that your whole automation system, and its component sub systems, is / will be just a node on the IoT and should be open to a conversation just like you and I could have and will be demanded by the likes of Alexa and what will follow. KISS is still a great concept - Keep It Stupidly Simple. (Yes not keep is simple stupid as I would not wish to insult anyone.) Eventually, given this is likely to be mass market - as we all demand better control of our energy use, in the end, once the adoption curve starts to play ball, the 'VHS' solution will emerge and most of these systems will fall by the wayside! No one will be buy an actuator that does not expose its capabilities and control parameters on the IoT or, for that matter, a sensor that does not do the same. Then the technology winners will be the ones who make the higher level stuff (software) that allows these things to work together and offers a robust self documenting interface anyone can use / understand.

Tidy enough job.

Maybe you could slightly reframe the problem! You could rearrange the cupboard doors and make room for the pucka thing. EG Just fit a post, the required depth, to the wall and put the hinges on that or perhaps have concertina / bifold doors on the cupboard.

Wonder how all this works with shadow gaps? Layer of plaster then the gap forming strip on that then the rest built up to the strip? Then there is the ones with the LEDs in - respect to plasterers🙂.

LED lamps can develop several.of ours have in the past.

Where are they now one wonders?

Yes merry Christmas one and all - time to hit the cans.......

Looks like a job for some nifty lead work and / or some fine cutting of the ridge tiles to make a 3 way junction.

Have a good one then.

Yes - but don't get any of it on the gears or the grease in the pack (unless it is a lithium based one) - the vast majority of plastic gears are not happy when lubricated with petroleum based lubricants. This site knows what it is talking about.

Very 'Now'!

This might be some sort of Cornish cultural appropriation as 'Bird' (meaning girl / young woman) was around in the 14 century although tracing its use up to the 1960s when it seems to have seen a resurgence looks tough. Naturally in the hands of @SteamyTea , in the way that bulls**t baffles brains, it could mean almost anything - but we digress from the core topic of this thread. Back to PHPP - which tells me what our home should need (Treated Floor Area TFA = 140m2): Heating Demand = 9.993 kWh/(m2a) & DHW = 22.4 kWh/(m2a) (Based on 2 person occupancy)

Looks like fun and why would you not like your bird? (or is 'bird', not the rather old school (c 1300) word meaning 'girl', something in Cornish I have missed)

Commiserations, that's 10kWh/m2 more for DHW than @ProDave, assuming a COP of 3, and he is three occupants IIRC🤔

It will as you will get a much more efficient boiler today - we did the sums here and came down to a modern 27kW boiler from a 32kW 30 year old one and still we use a lot less gas than before.