SteamyTea

Did you grow up in a stately home?

I am sure Google will know. https://en.m.wikipedia.org/wiki/Richard_Hills_(jockey) https://en.m.wikipedia.org/wiki/Michael_Hills_(jockey)

Yes, especially as I was at boarding school. The Hills Twins, Richard and Michael.

While I think it is an odd rule, it is a bit like speeding. I do it a lot, thousands of times a year. Not been caught for over 20 years. I had a £270 fine and 5 Points that time. Just worth pointing out that within our own boundaries, you are not King of the Castle. So I hope you point out the planning rules to your customers, they could be a bit miffed at you if they had to take it down and ask for a refund, which you would refuse.

Basically because of the mismatch between volume and low heat demand. Buffer, or volumiser, amounts to the same thing as long as right size for the demand. Like all heating systems, they need to be insulated so that the energy is distributed to where it was designed to be. Not some vague, 'well it all stays within the building'.

Can you inject ozone into it. Oxidisation will sort it quite quickly.

Or Stand Alone Domestic PV Installation Limits and Conditions (Mounted within the grounds your house, block of flats) The effect on the external appearance of the building and amenity of the area should be minimised. The first stand alone installation only will be considered ‘permitted development’. The installation must not exceed a height of 4m at any point. The installation must be 5m or more from the property boundary. The array of solar panels may not exceed 9m2. Stand alone solar installations are not permitted within the grounds of a listed building or scheduled monument. If you live in a conservation area or in a World Heritage Site, no part of the stand alone solar installation should be nearer to any highway bounding the house than the part of the house that is nearest to that highway. If you stop using your system, it should be removed as soon as possible. https://greenbusinesswatch.co.uk/domestic-solar-panel-installation-and-planning-permission-england

Would that need planning permission because it is considered a ground mounted system? (the bonkers 9m2 rule and all that)

You will end up fitting one, so make space. And don't make the tank too small.

Would be hard to disaggregate what is actually going though the walls/windows/floor/roof/doors and what is ventilation losses. You would also need to know how much has been absorbed by the air and the building fabric. There was a idea to do air leakage tests with a pulse of air, was that what you were thinking of?

What Centrica are try to do down here. https://www.centricabusinesssolutions.ie/knowledge-centre/ideas/matt-hastings-bbc-r4-battery-storage (slight disclaimer, I had to spend 3 years working with Matt Hasting)

I am working, but not on a building site. Or I am up off upcountry as Mother is seriously ill again. Building something would be a relief.

Not you trolling, you speak sense.

Easy enough to work out. Calculate the (leaky) area and volume. Divide volume, m3, by the product of the m3.h-1.m-2 and the area, m2. The thing that stops it being easy is that the leaky area and volumes of houses is different. So taking my house, which is solid floored and terraced and just comparing it to the end of terrace net door, for the same m3.h-1.m-2 @50Pa will give different numbers. Knocking up a spreadsheet quickly and it shows that at 1.5 m3.h-1.m-2 @50Pa, my house would have an ACH figure of 1.5 and my neighbours at 1 ACH. So care has to be taken if the m3.h-1.m-2 is used on its own and in isolation. Bit like U-Value for windows or walls. Great to have a low window U-Value, unless you cover all the walls in glass.

Biology is just a Latin test. I read a good book about epigenetics. Only thing I learnt was the Dutch went hungry and the reason it is so hard to make new drugs. Drugs need to be small molecules so they can pass through cell walls. Most of the useful small ones have already been discovered.

Not sure. Could be that one end of the WD (stands for water displacement) is small and attracts the water out of a hole, them wiggles it's way in. The other end of the molecule may be larger, so, though electrostatic forces gets drawn in. This will act as a wedge, causing the surface to swell. Guessing a fair bit here. I tend to avoid chemists. They have 20 words and just keep rearranging them.

Is that because WD40 displaces the small water molecules in the nylon and the gaps are replaced with the larger molecules of the oil.

Do most half decent controllers have the ability to gather data? Being on E7, I have not bothered to keep up with general heating system controls. If they are like ASHP ones, they all seem to have their own way of doing similar things.

Check against the HDD databases, the charts should be similar shape. https://www.degreedays.net/ Solar gain is quite tricky. When I plot my house data against weather data, there is not a very strong correlation. I think there is a better correlation to windspeed, but when the wind is strongest, the temperatures are highest. Not as if I get many clear skies caused by NE winds, in the summer. Not as if I get many clear skies and warm SW winds in the summer either. It rains most days here, and when it is not, it is dark.

The base (x-ais) is going to be gas usage. Then I would plot (separate plots), in no particular order. Room Temperature Eternal Temp Room - External Temp UFH Flow Temp UFH Flow - Return Temp Buffer Temp Buffer - UFH Flow Temp Boiler Flow Temp Boiler Return Temp Boiler Flow - Boiler Return Temp (probably the most important) Boiler Flow - UFH Flow temp I would also categorise them into a frequency distribution where the x-axis is the delta Temp between the Room Temp and the External Temp (this is your comfort control. Then to make sure it is making sense, find the times (hourly) between Maximum Temps and Minimum Temp (the Temp Ranges) Those last two will not always have a very good correlation, but are quite useful visually because you can probably disregard the tails.

And you are still not getting it Now you are just trolling.

FFS. You seemed, a few replies back, that you knew what was going on because you had access to Gridwatch. Now you say that information is irrelevant.

I am starting to think this topic is being trolled.

Yes, we have the highest prided water and sewage, Indian and Chinese food, electricity.....

The stress in a bending beam can be expressed as σ = y M / I (1) where σ = stress (Pa (N/m2), N/mm2, psi) y = distance to point from neutral axis (m, mm, in) M = bending moment (Nm, lb in) I = moment of Inertia (m4, mm4, in4) https://www.engineeringtoolbox.com/beam-stress-deflection-d_1312.html