ProDave

By making the first floor extension so small you introduce the complication of some probably substantial beams to support 2 of the walls of the extension and obviously that part of the downstairs cannot have the open vaulted ceiling.

I have so far replaced one clearly missing track with a wire link, and put wire links through 2 via's that were no linger making continuity through. But still is is resolutely totally dead. I have just downloaded the service manual that contains the circuit diagrams and the board layouts, so there might be a chance of resurrecting it.

But the copper has GONE. Not just lifted from the board, gone, dissolved, no longer present. Regardless of how the board was made, something has dissolved the copper. I have never seen that before

Your partner should have consideration not to use the en-suite for smelly jobs. Find a more remote toilet for that.

A remember a former member who had done a lot of work to improve his house, when he came to sell it and needed an EPC he showed the assessor details and photographs of all the improvements he had made, and the assessor ignored it all just made the standard assumtions. I wonder where us self builders that got an A with a full SAP taking all the actual details into account will fair if in > 10 years time we need to renew the EPC for instance to sell the house. I bet that will be an RDSAP and come out much worse?

This week I have been getting our touring caravan ready for the season. First job was fix the battery charger / monitor / control system that had died over winter. Simple and boringly monotonous electrolytic capacitor failure. that is not the question. Now the 12V electrics will turn on I find the car radio is dead. Withdrawing it from it's slot and a small amount of rusty brown coloured water dripped out. It seems the water has entered a leak at the roof mounted aerial and ran down the inside of the coax and entered the radio through the aerial plug. Inside the radio there was an area of dried up rusty water on the PCB. When I cleaned it off, it revealed that several of the tracks were missing, simply gone. Water won't dissolve copper. So I am wondering what compound has been created here that did dissolve the copper? I know Ferric Chloride is the normal chemical for dissolving copper. Is that what has been created by rainwater running down inside a coax cable and then rusting the steel aerial plug on the end of the cable? Or what other compound may have been made that dissolves copper?

That really does sound like boiling water to me.

How hot is your hot water? Normal temperature or scalding hot? That energy has to have gone somewhere.

I am looking for recommendations where to buy bioethanol from please? Not for the house but for the spirit burning stove on my boat. Currently using meths and I want something non stinky instead.

100kWh in 24 hours and something is going to get hot. VERY hot. Was your hot water normal temperature or scalding hot? Any sign of discharge through the tundish. That's over 4kW continuous over that 24 hour period, i doubt the HP would / could consume that much it sounds more like the immersion heater with a failed thermostat and boiling the water in the tank? Keep the supply to ASHP and immersion isolated until you have a proper chance to get it looked at. Electrician is more likely needed than plumber.

On the rare occasions that happens, they have only been interested in looking at the meter to confirm the serial number and confirm a real up to date reading. They never even looked at the inverter (in the garage) or looked up at the panels on the roof. Since Covid no meter reader has been, we were instead asked to send a photograph of the meter.

Where is "over here"? It would be handy to add your location to your profile so everyone knows where you are and what regulations apply.

My reading is if you are not changing the total installed capacity you don't have to do anything. So new panels of broadly similar size to the old and operating with the same original inverter I would just do it.

I like the open plan feel of that but think the rooms are disproportionately sized. I think the living room at the front will fill tiny compared to the huge open space at the back. Make the living room encompass what is currently laundry, and shrink the large open plan room a little to fit the laundry in that space somewhere.

The original UK grid was indeed centralised generation. But a major change now is very much more renewables, in particular wind, is being built in Scotland. The original grid had little generation north of the Central belt. Now there is more and more wind farms in the far north, meaning it is the high voltage gris that is struggling, not just local issues.