SteamyTea

I don't think cast iron, steel and aluminium production are either. You can easily look at metal prices, here is Cobalt. https://www.dailymetalprice.com/metalpricecharts.php?c=co&u=lb&d=0

Interesting project, where about in the country is it? Thermodynamics is fairly simple in principle. Heat (which is the old word for energy) of itself, can only travel from the hotter to the colder. It now gets into detail and silly terms. But at this stage, no need to worry about that. First thing to do is to measure all the wall, floor and room areas. In metres. Then note what they are made from and how thick they are, and which bits are are covered with earth. From that, a U-Value of each element can be calculated and the expected weather/earth temperature seasonal profile established. If the place is already weather proof, it may be worth getting/making a temperature logger. Real data is really helpful. Air changes an hour can be estimated (I suspect they may need to be a bit higher than normal). Again, the calculation are pretty straight forward. Domestic Hot Water (DHW) is usually around 80 litres per person, per day. You may be able to estimate better than that from your current usage. Where things start to get difficult is when you want to incorporate the effects of solar radiation, though if your house is basically underground that may be simplified, as will wind losses. But first things first, measure the place up. A read of this wikepedia page may be useful: https://en.wikipedia.org/wiki/R-value_(insulation)

I don't have a secret method to reduce lime scale build up, I just live in Cornwall.

At the time FiTs was planned there was a fear that energy prices would double in a short space of time. What happened is that domestic demand dropped though the use of 2 cheap technologies, lighting and flat screen TVs. This did not stop the PV sellers playing on people's fears. Even now, energy prices are not much different, once inflation is accounted for. I have never looked into the numbers, but wonder if the reducing in domestic usage is a better incentive, in cash terms, than the FiTs.

How much cash are you willing to spend on this? Was thinking that maybe two fan units, with the same airflow may be a bit quieter. https://www.engineeringtoolbox.com/fan-noise-d_61.html

That was Shell. Personally, as my Mother has lived off a Shell pension since 1978, I think they should charge people to export their energy.

I put some samples in a bucket of water for 13 months, took them out and thy seemed fine. Somewhere on Youtube there is a video of it, but think it was on an account I don't use anymore

Yes. The big players are offering the least. I have always been wary of smaller companies offering 'better' deals.

They seem to be there every day. Cafe is open Thursday to Sundays at moment.

@A_L Brilliant. I think I can build a story around that. Thank you.

Right on Bird

Feynman replied, “Hey buddy if I could explain what I won the Nobel prize for in 2 minutes, it wouldn’t be worth winning the Nobel lyrics for would it!” But was overhearing a conversation today about the the recent MET Office data release. The daughter, probably late 30s was chatting to her Mother about how it was the second hottest dacade on records, within minutes, the Mother was explaining that the world is always getting hotter, as the Bible said about the flood. Was a conversation I wanted to join in, but felt best not to.

It is a lot bigger than my tent, even my big one.

Almost sounds like someone from the West Country.

I piddled about every Sunday sorting out my energy data, because I did not have the time to make it faster.

No. I am after a simple explination, preferably a mechanical one, that describes how molecules absorb and emit different wavelengths of light. Why should some molecules not absorb UV but absorb IR. For that matter, why should snow, which is cold, and made from water, reflect UV and not absorb IR. It seems a simple enough question to me, but hard to get an easy to understand answer.

Can it be done with Unicode symbols.

It does amaze me that anthropogenic climate change deniers tend to think that those of us that believe, through the science, that we are changing global temperatures, have never heard of all the counter arguements. But that is moving away from what I need to know, which is a description of how molecules change energy types.

One problem of cooling a flue is that it can affect the gasses being extracted. Basically it makes them denser, so do not rise so fast. This could cause CO to be released into the building. I do wonder, as you already have large vents and pipework around the house, it some sort of ventilation heat recovery could be easily incorporated. I lived in a house with forced air heating and did like it, except when my girlfriend was typing in her office/spare bedroom, the noise coming into the main bedroom was terrible. Have heard that conversations can carry down the ducts quite nicely too.

Not what I heard from the local police. Known as the naked keyhole peeper.

There is a large ICF developement going on at Tehidy, (south drive) at the moment. I think @BotusBuildis going ICF too. There is also a small ICF place being completed near St. Agnes, guy did most of the work himself.

Welcome. Further West than you. Are you a local?

So it can dip the lights unexpectedly? Having had a high beam light blow on my motorbike, when crank on a tight bend, I know how scary it can be to loose visibility with no warning. 40 years on, and after having my lens changed to shiny acrylic ones, I notice that my eyes don't react as quick as they used to. I am not sure if this is just an ageing thing, or a side effect of new lenses implanted in my eyeballs. It was not a problem before the operations, but then I saw jack shit at night anyway.

Do 'single peddle' cars actually only have one physical pedal. Or is it marketing crap that you can slow down without using the brake pedal, like my Father had on is mobility scooter.

Still does not explain how CO2 causes warming, just the effects increasing it has. Though it is good to see that he myth busts the greenhouse analogy.