SteamyTea

There is down here, hospitality workers (12% of the area's economy) and non essential shops (about 35% of the area's economy). Even agriculture has had to lay people off because of the reduced demand for some crops (generally the posh things that restaurants buy). Fishing is hard hit as well. Then there are the unknown people that have had reduced hours because they support the other industries. Last year, 39% of the workforce was on genuine furlough in Newquay and St Awfull, and the county as a whole is at 33%. The Cornish would rather be poor than have anyone tell them what to do, but like the EU (we are still getting some) and Central Government handouts. I would happily be on furlough till I retire, then I would get a pay rise. I think it is money that helps, certainly more than low paid jobs in unsecure employment, which is what we normally have here. People seem pretty happy.

Can you put a pipe in and then pump out. A pipe can be cast in concrete.

As other have mentioned, if it is draughty, then that is a problem.

How much, 50mm, 200mm? Basic 'Celotex' type insulation has a thermal conductivity of 0.03W/mK So 50mm will give you a U-Value of 0.6 W/m2.K, 200mm 0.15W/m2.K Oak (as an example) has a thermal conductivity of 0.17 W/mK, so a U-Value of ~11W/m2.K

I wish I had a well in the house, I pay £8 a tonne to get water in and out of the place. It costs me more to get the water than heat it. Use this valuable resource.

@pocster Offer and Acceptance. At long last.

Welcome Without more details, it is hard to tell when is happening. Is the floor you refer to as joisted, got an air void under it, it is it full of insulation? What sort of floor covering do you have in the area that works? What are the general heat losses like for the two different areas?

About what I am using at the moment. 1, 3W light bulb and my my laptop (mean usage 8W when in use). Don't get me wrong, I like the idea, but I think just going to low carbon generation is the real answer. Look at this and weep. Nearly 4 times worse. But none of us would have deliver a decade ago that even 100g/kWh would have been possible in 2021. But what we going to do with the dirty Welch.

@joe90 You fitting a bilge pump?

Need a router permanently running though. So 5W or so. My router is my phone hot spot, fine for people that live alone like me.

That is all to do with the designed output, why they are rated in kW A kW is 1000 joules per second. A joule is a unit of energy. Specific Heat Capacity also uses joules, kJ/kg.K This is why, knowing the energy needed to raise the temperature, and knowing the power you can supply, you get the time needed. J/kg.K / J/s

@joe90, @ProDave, @Jeremy Harris (even though he is not here) A complete housing estate just outside St. Agnes. You tend to hear about the disasters, not the ones that cause no problems.

"For God's Sake"

If this is for a bathroom, you want an Enthalpy heat recovery unit. There is energy in that moist air. https://www.engineeringtoolbox.com/heat-recovery-efficiency-d_201.html Don't guess, calculate.

Look at this, half my electricity is coming from the sun, and it is not a clear day today.

And the boring machine broke down, and then the replacement had the wrong diameter heat in it. Held him up for a year. The Ozone treatment was elegant though, basically a vertical clear tube with an air release valve at the very top. Pressurised water was pumped though it, ozone introduced at the base, that reacted with just about everything in it, then the untreated O2 blead out the air release. All cheap parts as well. And being a clear tube, you could see the iron oxide at the base.

Basically yes, but the devil is in the detail. There is the ph of the water to consider, dissolved nitrates, viruses, bacteria, pollen. Then, depending on what you roof is made from, other dissolved chemicals. Rainwater is not distilled water.

I thought it was the one that was read from when drinking wine and breaking bread.

Down here, after heavy rain, we just let it all flow into the harbour. It rained last night. I had to explain to the Bluetits what it was.

The King James Bible. It might work.

Which way did your province vote in the referendum. I feel I should fully embrace our separation, but then my household emissions will go up. And that is more important to me that sovereignty.

Got around to reading @DamonHD's bit, the interesting bit was the https://carbonintensity.org.uk/ new regional map. I am in a region that is currently producing power at 55g/kWh, even lower than Scotland's 141g/kWh Damon is in a region that is currently producing 308g/kWh. Nearly 6 times greater. Going to have a deeper bath and drive out for a coffee as I feel very virtuous now knowing that I am not a grubby bugger.

Not the underheating that is the problem, that can be cured with a bigger heater, it is the problem of just throwing the energy out the door and making the MVHR not so efficient.

Yes, I use 100 millionths of the nations electricity. And I want to use less, and at times of most RE generation. If I used the same amount to charge an EV, I would probably get about 40 miles of travel from it, not far off half what I do in a day at the moment. According the the RAC, in 2019 the UK sold 30 billion litres of road transport diesel. So taking my 2,270 litres a year, that would be 0.0000075667% of the nations supply. Round that up and it is, oddly, about the same 100 millionth again. So my conscience is pretty clear, even if I do drive, on average, 70 miles a day (the downside of living in Cornwall, everything is miles away). Interesting that the sale of gasoline has decreased while diesel has stabilised since the VW cheating, and we are lead to believe that no one buys diesels anymore.

This was the case with carbon fibre chassis in the early days. To get around the problem they incorporated some Kevlar. Not for adding strength, but for when the inevitable failure happened, it failed less catastrophically. Since the early 1980's better weaves and resins have been developed and the knowledge base is now huge and, you only have to watch Romain Grosjean's crash through the barrier at Bahrain to know how things have moved on.