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Posts
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Everything posted by SteamyTea
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HVO 90% less CO2 than Kerosene?
SteamyTea replied to ProDave's topic in General Alternative Energy Issues
Sorry, nodded off and woke up to a nightmare. Thought I was back at school doing chemistry lessons. Then realised I was still awake. I did not realise it was so different from making biodiesel from waste fats. Sounds more energy intensive. -
Angle Grinder - Wattage, Button/Trigger, and Recommendations?
SteamyTea replied to Oxbow16's topic in Tools & Equipment
There are ways around the disk fitting, but they involve having a selection of collets and sometimes washers. Thankfully having more angle grinders than in healthy, I can always get things to fit. Just get the Makita, you will be fine with it. It will all make sense when you bolt the disk down. -
Angle Grinder - Wattage, Button/Trigger, and Recommendations?
SteamyTea replied to Oxbow16's topic in Tools & Equipment
Thin disk slips on shaft. fatter disk does not slip. -
HVO 90% less CO2 than Kerosene?
SteamyTea replied to ProDave's topic in General Alternative Energy Issues
Yes, and this is the problem. And huge environmental damage where it is produced. When I did my degree in Renewables, I wrote about the CO2 problem that biofuels create. That was 18 years ago. I got marked down quite badly because the lecturer 'could not follow my maths'. He stood to be a local Green Party MP. It really is dodgy carbon accounting and double counting. If it must be burnt, pour it untreated into a fluidised bed coal station, no point pissing about cleaning it up (which is quite energy intensive at it is heated to boil the water off), then chemically modifying it to remove the glycerine (which then needs disposing off), then cleaning it again in distilled/demineralised water (as if that just falls out the sky), then boiling off the water again, then mixing with ethanol. Package it up and transport it to end user. (expletive deleted)ing nonsense like a lot of 'recycling' or second usage. -
Angle Grinder - Wattage, Button/Trigger, and Recommendations?
SteamyTea replied to Oxbow16's topic in Tools & Equipment
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Angle Grinder - Wattage, Button/Trigger, and Recommendations?
SteamyTea replied to Oxbow16's topic in Tools & Equipment
Not sure if the video is too large at 160 MB to upload. So may be a Youtube one if it don't. -
Angle Grinder - Wattage, Button/Trigger, and Recommendations?
SteamyTea replied to Oxbow16's topic in Tools & Equipment
Those are for the fibrous cutting disks. Down to the length of the shaft Shall pop into shed and get my selection out. -
Screening design for heat pump - comments invited
SteamyTea replied to JamesPa's topic in Air Source Heat Pumps (ASHP)
You can also add random spot mass to it, that can be used to tune the absorption. I wonder how hard it would be to add a sound cancelling system to a heat pump. eBay have some noise cancelling headphone for less than 20 quid. But of modification and an old Amstrad stereo from a car boot sale should do it. Can always play your Bowie collection if not. -
HVO 90% less CO2 than Kerosene?
SteamyTea replied to ProDave's topic in General Alternative Energy Issues
Can be turned into polymers, longer term sequestration that way. It could also be burnt in an waste to energy plant, without processing. That would be even more efficient, and improve local air quality. -
HVO 90% less CO2 than Kerosene?
SteamyTea replied to ProDave's topic in General Alternative Energy Issues
Kehelland. Not just any hamlet. It is where the Met Office have the weather station. As for 90% CO2 reduction, all depends on how it is accounted for. Was the cutting down and burning of an Indonesian rain forest, to make way for a palm oil plantation taken into account? Was the long term effects of all carbon based combustion, regardless of source taken a into account? Was the difference in viable non combustion energy sources used as a comparison. Knowing the company that supply the oil, and sponsored the transition, I know it is green washing. -
Angle Grinder - Wattage, Button/Trigger, and Recommendations?
SteamyTea replied to Oxbow16's topic in Tools & Equipment
@Oxbow16 Any progress, or are you at A&E? -
I don't know, hence the question. Again, I don't know. The problem could be overcome with PV diverters for each device, but was wondering if that was really necessary. Probably easier, and more consistent, to dump load into a battery, then get the energy back out when there is enough charge.
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I have always been a fan of the OU. Really should see what else they are offering for free.
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Vaillant ashp (my battle with).
SteamyTea replied to zoothorn's topic in Air Source Heat Pumps (ASHP)
That is pretty precise. -
Is it not covered in BS 40101:2022
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My 1987 vintage house has a separate consumer unit for the E7 storage heaters and DHW. This is fed by separate tails from the smart meter. All that is quite normal. If I was to fit some PV, but with an 'islanding' inverter (and with a secondary safety grid isolator) and wire it into the E7 circuit, when the E7 off i.e. during the day, and the PV generating, would any of the power go back to the grid? Does the time switch in the smart meter know not to export from the E7 circuit?
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Screening design for heat pump - comments invited
SteamyTea replied to JamesPa's topic in Air Source Heat Pumps (ASHP)
Reticulated foam is what we made the air filters from. These could be tiny ones for old Minis to huge ones for mining. Take the air filter off your car and see how noisy it gets. If you want a cheap fish tank filter, use a bit of Scotchbrite, it is the same stuff. -
Angle Grinder - Wattage, Button/Trigger, and Recommendations?
SteamyTea replied to Oxbow16's topic in Tools & Equipment
I have been using angle grinders for over 45 years (daily for over 20 years trimming up composite plastics), never had a disk or pad break. Polishing bonnets have slipped and caused a lot of imbalance, but that is easily solved. -
Flick those faulty LEDs and see if it affects it.
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All depends which socio-economic group you are selling to. A £2000 increase is a lot to someone on £17k/year, neither here nor there to someone on £70k.
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Can you isolate them and reboot the inverter? It may be they are the cause and the inverter is just reporting a problem. I have posted up the fault codes your other thread.
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RAAC autoclaved concrete, what about mannock blocks?
SteamyTea replied to CalvinHobbes's topic in Brick & Block
What is needed is a public enquiry. That should delay any decision for 20 years. -
Slopes rather than hills in Aylesbury. You could have taken one of my Sister's boat trips and seen where it all ends up.
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And you have had your inverter act oddly. I think these threads need to be merged.
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I assume you have disconnected it and then reconnected. Solis Alarm Codes https://usservice.solisinverters.com/support/solutions/articles/73000560423-solis-inverter-alarm-codes-complete-list-
