ProDave

Those were popular in their day, and only a few years ago, you could still buy them new, it was about 10 years ago I last installed one. These days they market them for heating industrial spaces. BEWARE if your install is anything like many I have seen, the walls of that cupboard could be lined with asbestos as is often the inside of the cupboard door. They were meant for whole house heating, so 8.5kW is just like having 3 big storage heaters all in the same box. On a 7 hour off peak they could store almost 60kWh of heat. I once replaced a fan motor in one of those. Never again, miserable job with a huge amount to strip out to get at it. Even if the house has suspended floors (which it probably does for the under floor ducting) there is likely a cast in place concrete slab under there for it to sit on.

New install? Boiler swapped for ASHP? If so was it noisy with a boiler?

Those are impressive figures, the usage is commendably low. One of the reasons for my DIY solar PV diverter was the unusual meter position and PV generation remote again from the meter. I hard wired my current clamps using twisted pair armoured telephone cable between the meter box and the house, about 25 meters, then 2 pairs of a CAT5 cable from the entry to the house to the plant room where the diverter is, probably another 10 metres. All seems to work well. I have exported just over 400kW in about 5 years. Definitely very much colder from today for at least the next week.

I would love to know just what was wrong with such a new build that was such an easy fix to make a noticable improvement.

So after the work that cost her £6, is the property actually warmer? Was there really visible black mould before they came?

There will likely be a gap but it can't / won't be that much, the supporting poles will be attached to the garage wall for stability. The whole point of buying this particular type of truck is you can wind he legs down and demount the camper unit from the truck, and use the truck on it's own as a normal vehicle. So parking the other way would mean driving out onto the grass to demount which would not end well in winter when it is wet and soggy.

That is the plan, with battery storage as well.

I would have made it my business to be there and move the builders stuff out of the way myself if they were not there to move it myself.

I meant when you remove the actuator head, and energise it by electricity, i.e. demand heat, does it operate fully and turn the boiler on? 20 degree movement seems too little for a 2 port valve, I would expect a lot more so suspect a mechanical issue in the valve.

If that is the actual valve being discussed, it looks like a clone of a Honeywell.

I could extend them (externally) one to the front and one to the back so they were not actually under the canopy. The front one visible is the exhaust, the rear one, hidden in this picture is symetrical so the same distance is the inlet. There will be a small gap anyway, to avoid trying to form any sort if flashing from the wall to the roof.

DC is nasty as it is hard to let go. But these things are designed to only output a low current, so if you did touch it the voltage would drop a lot lower. It's volts that jolts, it's mills (milliamps) that kills.

A part of my build that is still awaiting to be built. And a good job as the parameters have changed as I hinted in another thread a few days ago. It now needs to be built a bit higher than originally planned to accommodate the latest addition to the fleet. It's almost 3.2 metres to the highest point so we need comfortable clearance under for that. The size remains the same, 6 metres by 6 metres. The original plan would have been sloping down from the front to the back, but that would make the front insanely high now, so it will now slope from the garage wall down towards the left. It will be roofed with box profile roofing as originally planned. I will sketch a proposed joist plan in due course to bounce ideas around. But one thing that has become obvious, the car port roof where it attaches to the garage is going to be above the MVHR vents. I am not sure if that is going to pose a problem or not?

It outputs up to 500V or 1000V depending what you have selected, but only a low current is available. It will certainly smart if you touch the probes. Try not to.

It's okay to short the probes. The damp piece of wood is a good test to give some confidence that it is working properly.