SteamyTea

What you have, in effect designed, is a fridge, with the door open. This is how heat engines work. They take a lot of low temperature mass and condense it into little high temperature mass.

Is it a probate sale? Lead poisoning. Ask for £15k off the price, on top of the current 12% asking price. Dow here the water board (currently without water for around 4 hours) will change a lead pipe for free. Thought I do think it depends on how easy/far from their meter/stopcock.

As nice as it is to have everything digital these days, a normal cylinder thermostat is digital, it is on or off. I am not sure if covering it with insulation will be a problem, may have to adjust it a degree or two. Not the same as covering a cable to a 3 kW heating element, tat can cause problems with overheating and potentially an electrical fire. Well the tits are still in the football.

Yes, but not sure it will help much as it is my house, not yours. Do you have trouble sleeping usually, have you thought of a cheap sleep monitor, it may show that you don't actually have a problem. Follow the red line. Scale is on the right.

That is the problem with a relatively small, one off project though. Not as if the customer can test out ten different people to design the extension or family home. Then get them to build full scale replicas to test out the different design and construction methods. And when one is finally chosen, them them they are only going to get the price of the cheapest quote, while not paying the other nine. It is a one off deal, in both sides. So probably best to save some cash by learning to do things yourself.

Not about heat pumps, where he perpetuates all the old tripe about them.

So have they made a plasterboard tent inside our house?

My lightbulbs are 3W, when on. I usually only have one at a time on.

That is a McDonald isn't it?

Years since I looked into this, but what do ships use, they often have electrical stuff on the exposed decks.

They may help flow by reducing the static electricity charge. That would help in the 'packing'. Interesting idea.

Yes. I have two marketeers sitting behind me. (expletive deleted)ing hell do they talk complete bollocks. They are only good for colouring in charts.

I was just getting a coffee and was discussing the new coffee machine with the staff. It cost £35,000 WTF. Not as if they are sophisticated, Italians make them.

I know that graphite is anisotropic (better one way than the other) but the thermal conductivity, at best, is ~ 6 W/m.K. Solid, non porous, polystyrene is around 0.15W/m.K. Expanded polystyrene is much better. Now I know that the graphite coating is a few microns thick, so in reality, neither here nor there. So what is going on? Does it reduce moisture retention?

@Adsibob When I was lecturing, the university decided to check all the lecturers' certificates. Was interesting who left before the deadline. One law lecturer, who was also working as a JP had no relevant qualifications at all. They took her to court I believe. Another, who claimed to have a Doctorate, and in his words, 'I don't need a PGCE' happened to have the same name as someone that had genuinely done their doctorate though the university. He left before the deadline. All his students knew he was a fraud. It is a shame that there is not a central database where qualifications cannot be easily verified, same with professional insurance. May stop the term 'engineer' being miss used.

Check your charitable status, easy to get caught out.

Surely, should be the same in all offices. I often wonder how much time is wasted contesting quite minor issues.

And you woodburners are happy to have this happening in your living room, or should that be renamed, dyingroom. When it gets cold can I pop over and sit in your warm room. I will not smoke more than 1 packet of Marlboro Reds (even though they are in a black packet). You will not notice me being there.

Get curtains. While there may be some solar gain in the winter mornings, it is the colder side of the house, especially if an easterly blows in at night.

I have a feeling that the water companies can still charge for waste, even if not metered. It is the waste water down here that costs the most. Can't have our beached covered in human waste, dogs will get upset, then slink off and dump in the street. Still, the residence of S. Agnes like to think their organic, locally produced wholefood shit don't smell.

This changes the usage ratio somewhat, but also the income potential. Because of that the heating system may be better being on constantly and take advantage of UFH in a large concrete slab. As buildings get larger, they tend to have a smaller exposed surface area to volume ratio, so in effect, use less energy per square meter of floor area. Having said that, overall usage is the important bit. Having a thermal load of 20 W/m2 may sound impressive, but if you are heating a 500m2 building, it is not as good as 30W/m2 for 300m2. You seem to have focused on the inside space, but do you want it to look like a Methodist Chapel, or a generic village hall, or worse, fit in with the local vernacular? Most Methodist Chapels down here have a very grand frontage, then 'tin shed' built behind then. If you want to take advantage of PV, and I think you should, most of the front should become PV modules, that will make a really big statement. Just make sure the Cross does not cast a shadow. So avoid porches, trees and street lamps/telegraph poles that could cast shadows as well. 3 Chapels in a town in I avoid. OK, that last one has become a community hub.

Yes. As I have been in this house for over 17 years that is 15 times a year, under 50 m3. Now if I was in the very dry Thames Water area, where water is a lot cheaper than in the very wet South West, it would take a lot longer to pay for itself. It really comes down to how cheap your water and waste is. I cannot see that the rain water harvesting cannot be run at the same time as mains water. What is to stop me filling the bog at the same time as watering the garden? Like PV, systems can be designed to cope with both inputs easily. Retrofitting could be expensive, but if designed in from the start for a new build, the costs should be pretty low. Also would not be hard, or expensive, to fit an ozone steriliser to a pumped system. Just takes a bit of design imagination. So best to not ask an architect to do it.

What is the temperature of the inner frame, is it below the dewpoint for your RH levels.

Yes, but it highlights how the whole building, as well as the air in it, needs to be heated up from a lower temperature. Bit more complicated than that. It is the ratio of heated areas to heat loss areas and that governs temperature difference. But agree that you need relatively sophisticated control and monitoring to make a mix of UFH and radiators work well.