SteamyTea

Is it the actual cells that fail, or the protection circuit?

Have a look here: https://www.heatpumps.org.uk/manufacturers/ There is a large green one, can't remember the name of the company, but been told they are alright. Kensa make GSHP down here, but they buy in the compressors.

That is my experience with my timber frame, 1987 vintage. I even have that sort of temperature rise in the, in the unheated parts, in winter, usually more. The front of my house is SW facing, so the last few days have been tough. I stuck tin foil on the inside of the bedroom window as a temporary measure. Works brilliantly and only cost a quid. Last two nights have been killers. For only the third time in my life I had heat stroke yesterday, got home just wanting to sleep, could I (expletive deleted).

Cornwall Council seem to think that everything must be geared to tourism and hospitality, or less that 15% of the counties economy (this number varies slightly, will be higher this year). The last working mine, South Croft, stopped producing anything of note in the late 1980s. There has been talk about reopening it ever since, but the council keep putting obstacles in the way. Now SC is next to the Hartlands World Heritage Site, as if we needed yet another mining museum with 10 quid sandwiches.

I think you misunderstood my point. We can capture all the 'bio' waste we want, but compared to our current usage, it is tiny, which is why we don't do much of it at the moment. Regarding the farm waste and other sources, a mate of mine commissions these types of units and there is a lot more to it than just letting the waste ferment, then capture the gas and either inject it into a gas grid (it has to be of the correct calorific value, not pollute existing equipment...) or burn it in an engine to generate electricity.

This morning on Radio 4 there was something about gas smart meters not being able to work with hydrogen. Big deal, if the only challenge was swapping a meter over then life would be easy. In education, there is often a saying that we are education people for jobs that don't exist yet. This is total bollocks. Changing a name from typist to word processor operator is not a new job. A person who used to be called an attention seeker is now called a YouTube star. Not exactly new. There is way to much bullshit spoken in some quarters, and there seems to be an impression the more people that follow your belief, the more right you are, as long as you shout about it. Did McLaren invent the ventilator, no, and did they make any in the end?

Part of the problem is that we don't produce that much, and with new waste legislation, we will produce even less. But BIFFA have some numbers about what they are doing. 90MW of installed capacity, 530 GWh/year generation. So a capacity factor of 68%, which is pretty good. The UK generates around 75 TWh of electricity a year. So BIFFA supplies about 0.7% of the UKs energy. We can all easily save 1% by turning the DHW temperature down by less than 1⁰C. There is also the problem if CO2. LFG is about 40% CO2, which is not combustible, so you either take a hit on the boiler efficiency or you have to remove it. I don't think the strategy is either/or. That is just they way it gets reported. If it was, then we would be building nuclear power plants by the dozen, installing 1000s if large wind turbines and filling unused space with PV, then swapping out thermal boilers with electrical boilers. Would possibly be the fastest way to reduce GHG emissions. But we have legislation in place that near enough stops all that. And the cash price would be very high circa £80/MWh wholesale. Almost double what we pay today. Though 8p/kWh wholesale, it is really still very, very cheap.

? That needs a lot more explanation.

Natural gas supplies are not being banned, there will still be a market for the product. Just like combustion cars, sometime in the future there will come a crossover point where it becomes cheaper to buy a replacement with more modern technology. Don't confuse sales to early adopters as true market trends. Many people bought Video 2000, but then Betamax came along, soon followed by VHS, DVD/Blueray has been a very short lived technology, now we 'stream on demand', and complain that our broadband is not good enough. Natural Gas, combined with small amounts of land fill gas and maybe some hydrogen injection will be with us for a very long time. I had a look at how many new houses get built in Cornwall each year, seems to be about 3000 (some of these are conversions from larger houses to flats). Sounds a lot, but that is only about 2% growth, population growth in the county (or country as we like to claim) is about 1%. So the house building boom is not going to last for long. Thankfully we have a lot of houses that are not on gas down here, probably 25% (guess that is). Many of them are ripe to convert when the 'heating industry' gets it act together. Why, he already does PD courses, so adding another one is not a problem surely. At the individual fitter lever, he has nothing to loose, HP technology is not going to change overnight, not exactly new is it.

Had a customer come in last night, she was covered in dust. Had been plastering all afternoon. I quite the look of her, in her dungarees and unkempt hair. Much better than the scantily clad people that had just come off the beach. Oh hang on, I am awake now and not still dreaming. Mental Note: I must fit a security camera.

I think he has highlighted the ignorance in the industry that he claims to be an expert in. X is an unknown quantity. Spurt is a drip under pressure.

Try doing a kitchen shift when it is 40°C+, then getting into a roasting car to start another one. 8 AM till 22PM. I hardly wee at all these days.

I am surprised you need one over your end of the county. Or is it a blanket thing (pun intended) by Cornwall BCs.

Would they like me to come up and take a few off their hands? Mathew Syde was talking about this just the other day. https://www.bbc.co.uk/sounds/play/m000xm77

No, that was a general comment to highlight how hard it is to compare different technologies. But out of interest, what boiler did you get fitted, and how is it working out, as cheap to run as you imagined?

It does. Tim whatever his name was has already blocked me. Shame you do not want to engage in the heat pump debate posting up biased, unfounded, opinions, and then not backing them up is now called trolling.

So a basic replacement then. Isn't this like replacing a broken ten year old car with an identical, ten year old car, but with lower milage. And this is like replacing the broken banger with a new Tesla. If you really want to compare prices, you have to do it on the same basis, not on an arbitrary one like power output only. A better gauge would be installation cost / (running cost / annual energy yield)

It is not often that Cornwall gets hot. But one thing we do have on the 20 days a year without clouds is very powerful solar radiation. Now that we are in an area that has been issued with the countries first 'heat' warning from the Met Office, and I know I am going to be working in extreme temperatures tonight, I thought I would try and keep my bedroom a little cooler. Total price <£

Why 'annoyingly'? With the current system of gas boiler installations, there is probably very little thermal design involved. This promotes inefficiency at all levels. It also highlights a problem with not having to pay a direct price for externalities, such as climate change mitigation and infrastructure updating/upgrading. Taxable commodity Rate from 1 April 2018 Rate from 1 April 2019 Rate from 1 April 2020 Rate from 1 April 2021 Electricity (£ per kilowatt hour (KWh)) 0.00583 0.00847 0.00811 0.00775 Gas (£ per KWh) 0.00203 0.00339 0.00406 0.00465 LPG (£ per kilogram (kg)) 0.01304 0.02175 0.02175 0.02175 Any other taxable commodity (£ per kg) 0.01591 0.02653 0.03174 0.03640 https://www.gov.uk/guidance/climate-change-levy-rates

Why would you not want use of a drive that is up to current regulations. I would rather pull out of my drive in a safe manner than hope a driver as bad as me was coming along the main road.

Ok, to clear this up, and stop you trolling, can you show us your heat loss calculations for your house, and your DHW useage. Then show us all why it is not possible to have a HP system deliver the same outputs. Then show us the difference in running costs, and installation cost, rather than vague and misleading statements. If you are not willing, or able (which we both know is the real reason) to supply this information, then you don't have anything to contribute.

I added mine for a laugh.

That is Dave Jones trolling again.

Pulled up easily enough.

Looks like it is. Going to kill it all the same.