ProDave

Please explain why you don't want to leave the hot water on all day letting the thermostat top it up when needed. Not wanting to do that is forcing you to devise a complicated strategy to measure when an unusual amount of heat has been extracted from the cylinder when the tank thermostat will do just that, if the heating were on to allow it.

I think you have to serve notice on City Fibre to remove their equipment from your land as it was put there without a wayleave or other permission to do so. you can't just take it down otherwise you may be liable for criminal damage to their cables. What sineage is on your Heras Fencing? i.e what rules have they broken by entering apart from trespass. Point out to them they will be answering a charge of criminal damage to your fencing and anything else they have damaged but you will not proceed with that charge if they remove their equipment swiftly.

What size pipe? If it is the semi flexible stuff from BPC that is used in a lot of radial systems I have some left over. It is stored outside so will need a bit of a clean. You are welcome to some next time you are heading down this way.

Yes, which is regarded as bad for the environment. So before rushing to burn this new massive reserve of hydrogen, would it not be a good idea to ensure this is not just going to be a different problem going forwards?

Clothes airer is a wonderful thing, position it just below an mvhr extract vent and it dries your clothes very quickly. All looking very good and in spite of being a tight fit, it all looks to be servicable.

I would at least start by making your present timed periods much longer, so you are sure the cylinder has reached set temperature. Personally I would leave the HW on all the time people are in the house. If you really really don't want to do that, then whenever someone takes a shower get into the habit og pressing the +1hour boost button on your programmer. Your recirculating water pipes will be losing far far more heat than the tank, and that is where your attention should be, e.g make the circulating pump only come on when hot water usage is likely, e.g by motion detectors in the bathrooms.

@Adsibob can you post a picture of your cylinder please. It SHOULD already have a thermostat, that is a safety requirement and part of G3 for an unvented cylinder to ensure it cannot overheat, so I don't see why you are only timing the boiler to come on for set periods. Have you actually tried leaving the hot water on all day and just letting the thermostat do it's job?

You missed my point. Ignore the fact I have an ASHP, that distracted you. Your boiler should be "on" all day in DHW mode and a cylinder thermostat will fire the boiler whenever the tank needs more heat.

While the burner of an oil boiler is only on or off, it is controlled by a thermostat that is setting the temperature of the water leaving the boiler. So if all UFH zones are open, the flow temperature will cool down quickly once the burner stops so it won't be long before the burner starts again. But if just one zone is open, the flow temperature declines slowly so it will be much longer before the burner comes on for it's next burts. Hence power delivered and oil usage is directly proportional to the heat delivered. In our old house we used to turn the heating on 2 hours before we normally got up so it was warm by the time we were up, and in the evening it turned off at least an hour before we went to bed. That worked well for us.

I hope one of the English members who are part P can come and comment. Unless things have changed, it is only new circuits or work in special locations. So if you have a power circuit feeding a sun amp, then altering that circuit to feed a different how water tank in a different location is not notifiable. Please someone correct me if that is not the case?

I am not the best person to comment on part P as it does not exist in Scotland. But my understanding is it only applies to new circuits, and work in special locations like bathrooms. So if you have an existing circuit feeding say an ASHP and you want to modify that by changing the fixed wiring, that is outwith the scope of Part P so just get on with it. My choice for power switching from a microcontroller (Arduino in my case) was a solid state relay. That has been hapilly pulsing mu thermostat for years.

The rest of us have a cylinder thermostat, and when that senses the water going cold the boiler ASHP fires up and re heats the cylinder. No need to put the boiler on for a timed period. The thermostat in in a pocket half way up the cylinder in our case. So when that senses the cylinder is "cold" you still have the best part of half a cylinder of hot water left.

A lot depends on the quality of the corner. Nice smooth crisp plastering with a perfectly smooth, straight transition = easy. Old knackered ceiling with lots of patched up cracks and a corner that if far from smooth and straight = very hard to get it looking right.

That looks at escape of hydrogen into the atmosphere. I was considering the burning of a long time captured reserve of hydrogen would result in removal of oxygen from the atmosphere as well as release of water vapour into the atmosphere. This is different to producing hydrogen as a means of "energy transportation" and then burning it. Both ends of the process pretty much cancel out. A bit like the burning of recently grown wood = good, burning very old stored wood (coal) = bad.

If the planners refused a porch saying it is too big and you say it needs to be that big to be accessible, then that would be good grounds for appeal. Perhaps just telling your planners that is what you will do if they refuse it, might make them reconsider?

It is definitely a requirement here. Outside underground pipes were tested when BC inspected them before filling the trenches. For the final test of the house pipes you plug it at the closest IC to the house, surely that won't be 8ft down? and you cap off any vent pipes. In the case ot a file vent you would uncouple the flexi connection and plug the top of the rigid pipe. I assume you have access to that in the loft. Then you should be able to pressurise it up to the depth of the lowest trap, in our case that was 80mm. Your "fun" starts if it won't pressurise as you would have absolutely no idea where the leak(s) is. If BC ask for this test pass their request to your builder / plumber who both should have known it would be required

I read the extra post if >3M as suggesting if you don't then the balustrade rail might snap if you apply a .36kN/m load at mid point without the extra post.

So total energy demand 25,265kWh per year, which currently at about 28.5p per kWh is an astonishing £7200 per year. What were you paying previously? I bet it is nothing like that. I would have ran a mile from that. How much are you actually using per month? And remember this will be in addition to your normal usage.

You get plenty of time to do that during the sale process. However it all completed in a strange way, having been kept waiting for weeks due to problems on the buyers side, we had notification right at the end they were ready to complete in 3 days. Our solicitor had a busy 3 days as he had not been given warning of this sudden rush to complete after a long wait.

With such a large reserve, the obvious thing would be to build a large hydrogen fuelled power station close to the well head. then all the distribution is by cables. Now a controversial thought. That Hydrogen has been there a very very long time. Burning it will remove O2 from the atmosphere and add water vapour to the atmosphere. Has anybody modelled what that will do to the climate?

Why? You have all the figures on completion day. The tax rules have changed, it used to be you waited until the tax year end and then declared it, but now it has to be declared and paid within 60 days of completion.

Yes, all declared and paid. It was not that much, covered by 3 months rent.

No you just need to undo the wrong bits and re do them in accordance with the planning permission that was granted.

I think you only get that temporary protection if it was the sale of your own house. Sale of your spare house might not count. Anyway it is distributed in suitable sized chunks and RBS did not go bust in the time it took to move it, so all is well.

So make your covered walkway with a sloping roof as steep as you dare at least 45 degrees.