SteamyTea

Well done. Needs a new topic on how you managed that.

Just been to a funeral. Guy whose wife had just died had already buried two other wives. Asked what happened to the first two, "food poisoning" he said. "What happened to this one" I asked. "Broken neck" was his reply. "How did that happen" I asked. "She would not eat her lunch"

Probably illegally though.

Was near me. http://news.bbc.co.uk/1/hi/england/cornwall/3035606.stm I think there was another one involving a child. Depending on the type of resin used, GRP should be acceptable, but may not be legal and it is still best to to put the tank above the bed.

Some screen use before bedtime might be OK for your sleep after all The blue light that smartphone and laptop screens give off may not affect your sleep if you only get a small dose of it HEALTH 5 September 2022 By Jason Arunn Murugesu The blue light from screens can delay you nodding off if you get too much of it Realstock/Shutterstock A bit of screen time before bed might not actually damage the quality of your sleep too much. Several studies have found that pre-sleep exposure to blue light, which is produced by laptop and smartphone screens, can make people less sleepy and affect the quality of their rest. One of the supposed mechanisms for this is that the blue light makes bodily systems block the hormone melatonin that usually makes you feel drowsy. To dig a little deeper, Christine Blume at the University of Basel in Switzerland and her colleagues wanted to test whether blue light that affects only intrinsically photosensitive retinal ganglion cells (ipRGCs) in the eyes would have any effect on subsequent sleep quality. How the immune system enables the body to heal itself Daniel Davis at New Scientist Live this October These eye cells, alongside cones and rods, are activated by light, but ipRGCs are particularly sensitive to blue light and are thought to play a major role in setting the body’s internal circadian rhythms, says Blume. The researchers tested 29 people in a sleep lab with exposure to two types of light. The participants, with an average age of 23, all had healthy sleep histories. On one of the nights they spent in the lab, the participants were exposed to one type of light from a screen for an hour, ending 50 minutes before they typically went to sleep. The participants’ average bedtime was 11pm. About a week later, the participants had a night when they were exposed to a different light condition. The two different lights would have looked nearly identical to the participants. However, one was made up of a high proportion of blue light, which would be picked up by the specialised retinal ganglion cells, whereas the other had a far lower proportion of blue light and so wouldn’t be picked up by these cells. An electroencephalogram (EEG) machine was used to measure brain activity while the participants slumbered. Read more: Tracking sleep disruptions could improve nerve pain treatments To assess how melatonin levels changed, the researchers took saliva samples from the participants every 30 minutes in the 5 hours before the volunteers fell asleep and also took samples in the morning. The participants were questioned about how sleepy they felt before bedtime. In the morning, they were asked how well they slept and how alert they felt. The blue light that was supposed to affect melatonin reduced levels of the hormone in the blood by about 14 per cent on average, compared with the other frequency of light, but no effect was found on self-reported sleep quality. “Melatonin and sleep are probably not as closely linked as people think,” says Blume. She says there are several reasons why blue light may not have affected the participants’ sleep. Read more: Getting a little more sunlight is a simple health win for everyone The need to sleep at a certain time is largely based on two components: the pressure to go to sleep, which builds during the day, and the circadian clock, which is the body’s internal clock that regulates when we need to sleep and wake up on a 24-hour cycle. The interplay of these factors also has an effect. In young people with no particular health problems, like those participating in the study, sleep pressure may simply overpower the effects of blue light on the circadian clock, says Blume. The study also suggests that blue light’s effect on sleep quality may be driven by other eye cells rather than ipRGCs, she says. Blume adds that had they kept the screens turned on closer to bedtime, it may have taken longer for the participants to fall asleep, but the researchers wanted to question them and let them brush their teeth. “This study shows that exposure to bright light in the evening for a limited amount of time does not necessarily impact sleep,” says Blume. “I don’t think this study changes our overall perspective on blue light’s impact on sleep, it just adds a piece of information to the existing evidence.” “This does not show that blue light before bed will not affect sleep,” says Stuart Peirson at the University of Oxford. “It just shows that the type of blue light they used, at the intensity the used, did not in this study.” “I think what this paper speaks to is how complex the processes of sleep and wakefulness can be,” says Hugh Selsick at University College London. “The role of melatonin in sleep-wake regulation is well established, but it is only one of several factors that are involved in the process, such as the homeostatic sleep drive, mental state, physical health, environment, etc.” Journal reference: Sleep , DOI: 10.1093/sleep/zsac199

Why I created a logger than reads the pulses off the certified one.

That implies a CoP of 5.3, did you do other work to the house as well, or have different family circumstances? Or your old heating method was horribly inefficient.

So they admit it is a problem but have put some PR spin on it. For the two models that have a 94 W mean load when greater than 21°C (is that outside temperature) a resistance heater would do all my hot water.

There are a number of 'eco' white spirit/turpentine substitutes. They are usually water based. Or my favourite.

Yes, if I can disaggregate the data. Memory card is probably full as I think it was only a 4GB one, so on top of the OS, it has been adding half a MB of data every day at least, for the last 6 years or so. If you lived further away I would come and pick it up and see what is on the here. I never travel unless it is at least 300 miles it seems these days

Have you planning permission for them?

Can you get a residence disabled parking bay painted on the road outside your house. There must be one member of the family that would loose an leg, or just be a bit wheezy in the moorings. I have noticed down here people are putting traffic cones outside their houses. Its a great idea, I move them and park.

I wonder if the logger I put on years ago is still logging, that should show if it is drawing silly amounts of power.

Sounds like English, but makes no sense. Don't we just love technical language.

Then we add our birthday, and a little bit more for a laugh. Oh, engineers, though you said salesmen.

It is Wh, not watt per hour. Watt is power, Wh is energy, though we should really deal in joules as it would save all this confusion. There are 3,600 joules in a Wh, 3,600,000 J in a kWh.

A combi, or several, can be fitted to any house assuming the gas supply is adequate. Shower flow is worked out on how much water you want to come out the tap. Opinions vary, my shower is 10 litres a minute, other think 20 is needed, but you can get away with 8 quite happily. A combi boiler is usually sized for the DHW supply, not the house heat load. An ASHP is sized differently usually for the maximum space heating load. This is why a 24 kW combi may be swapped for a 8 kW ASHP. A different sizing formula is used.

If can can remember when we all had copper cylinders in the airing cupboard that was heated by the boiler, that is how they work. Combi boilers are a rather new invention, and hopelessly lacking in flow.

@S2D2 Can you reduce your non daylight usage? May be worth adding in some margins of error, and are your 3 series all on the same time axis? i.e. GMT OR BST, not a mixture. May also be worth reading this.

Yes, why not, turn something tough, into something tough and bad tasting.

Just remembers. Was should be hung.

I heard that @pocster is well well hung.

Never thought to compare windows. It is a huge difference, wonder what my secondary glazed, double glazed windows U-Value is. And the secondary glazing is airtight (ish).

Just plant fruit trees. Preferably fruit you like. Then put an A2AHP in it. Move your inflatable spa, a sunbed (I can deliver that) and a massage table (can deliver that as well). Then charge the locals to enjoy the facilities. Put in a couple of webcams and @pocster will be entertained for hours.

Thought that was some east end rhyming slang.