SteamyTea

My shit don't smell mate. Did a similar thing on my sister's Viva back in the 70's. Tight ropes around it, made sure if it did fall there was a timber pallet to soften the blow. Thing weighed about 25 kg, could easily hold it up with one arm when putting it back.

Work out the dry mass, multiple by the energy content, multiply that by the system efficiency and you have your answer. Takes a lifetime to grow some trees too. I wish people that burn trees would count the rings they have before they throw them on the fire. That may bring home just what an inefficient 'storage and energy' system biomass is.

Tat would be an interesting project. Would need some other inputs, i.e. external temperature, windspeed, shape of building, solar gain, ground temperature, rainfall. Then would need a lot of people to do it for calibration purposes. But fun all the same. I prefer Ed'd idea of letting off a stink bomb and seeing how long it takes to rid of the smell.

That is pretty impressive @Ed Davies, Wonder if you can use a gas analyser and local wind speed as a proxy for air tightness.

is 15 mm about 5/8th of an inch, which is probably a 1/2" pipe. Who thought up this system, a Victorian.

It is also perverse that we do not directly tax pollution, but add on the cost of green generation to our utility bills.

What do you mean 'turning'

And because of these idiots and super easy to drive cars we now have much safer roads, even allowing for the increased numbers of drivers, the higher average speeds.and cars that are capable of accelerating so much faster than we were used to, not to mention the greater distances traveled. And they all do 50 MPG too. Like anything new, people adjust, and adjust quickly. This does not mean that everyone adjusts, just the vast majority do.

That would still be an increase in installed systems though. This does seems a bit peculiar, but then our tax system is. It really does need a total rethink instead of this sticking plaster approach.

Considering that PV systems are now at least a 1/3rd of the price they were 8 years ago. Sales since Jan 2016 have been fairly steady.

When they got rid of new car tax, car prices stayed the same. Many things are sold on a price point. So probably won't make much difference.

Isn't 3/4 the bore of the pipe. I have never really understood plumbing fittings.

The kWh is a unit of energy that us used to buy energy in. It is what the numbers on an electric meter are. Look at your electric bill and you will see kWh Think of it as the number of gallons (even though we pay for it in litres) your fuel tank holds. Lots of gallons go further (the input knob turned to full).

Cheers @joe90 May use that as an example of 'thermal mass'

Because by looking at extremes it can be helpful to the bigger picture. Because they look at the rate of increase or decrease in numbers and it is helpful to the bigger picture. Can you answer this?

While I think of it, do you know the U-Value of your roof, is there insulation between the upstairs ceiling the the loft floor?

Bit of a different issue. But I think most BCO would spot the difference between bricks and cardboard. They also rely on the integrity of professional bodies and leave it up to the owner/builder to sue for damages.

@epsilonGreedy You are showing just one area of the globe there, and an extreme environment as well. If you constantly go looking for the outliers then you are just reinforcing your biases. There was a study a few years back about some glaciers that had increased in length and volume. This was used as proof that climate change was not happen, in fact I think they stated that it showed cooling. It was soon pointed out that in this special case, there was more rainfall in the region. Rainfall goes up when the world is warmer. It just happened to be dumped on those 4 glaciers because of the local weather patterns. There is a reason why we use different words for weather and climate. You really need to ask yourself what you are trying to prove here.

I have a picture for sales called 6°F. Only one person has commented on its meaning. She did not buy it.

Part of it is legislation. We are told what we can and can't use and what quality standards to work to.

I tend to live in my kitchen, not sat on my sofa for years now. Last year I did heat the house during the winter because I am getting weedy. Though the heating is only two storage heater with a combined maximum capacity of 22.5 kWh/day. My biggest usage is DHW, but that is because I like a bath, a deep one, every day, sometimes twice a day.

Or about a quarter of what I pay on a m2 basis. Small houses look terrible on paper and are even worse to live in.

Does show that designing in PV from the very beginning is worthwhile.

Just basic physics really. Treat it as such and the rest falls into place.

I have never had a satisfactory answer to that. Excluding the combined cylinder/header tank ones, where you tend to heat the cold store with waste heat from the main cylinder, the physics is the same. One reason given is that there are losses though the pipework, but I find that a bit dodgy as pipework should be sufficiently insulated.