SteamyTea

When you started your refurbishment, did you ever think a small draft would worry you after all the trials and tribulations you have been though. Soon you will see the funny side of it all. We have!

Isn't that what CAN bus does. Send out a signal that power is available, then devices take and use it, if they need it.

Yes, or No, not sure.

Still trying to work out what is going on.

I bet you never, ever, thought you would be typing that sort of reply 2 years ago. Building physics soon takes over your whole life.

Better off doing it a few hours after sunset, then surface wall heating from solar gain is not distorting the readings.

Wish I could ask him. But if it is based on his spreadsheet, then it is only looking at the fraction of total house losses, regardless of the energy source. It also only uses mean values and not weighted values. So probably badly skewed, not sure in which direction though. May have to make up a model sometime and see what comes out. I have an unused paving slab somewhere that can mimic a slab.

Mine is, 2/3rd up the wall.

Don't you just end up with a glaze of wee wee on the floor. Actually, similar colour to my bathroom.

Here is a better use for wood. EXPLORE OUR COURSES Menu Waste wood chemically recycled to produce material stronger than steel A treatment process can turn old pieces of wood into a new super-strong material called "healed wood" TECHNOLOGY 19 May 2022 By Alex Wilkins Wood for recycling Wood for recycling can now be turned into a substance stronger than steel urose/Getty Images A material made from recycled wood is five times stronger than natural wood and can be made from any timber by-product, including shavings and sawdust. Wood is a hugely versatile material, but millions of tonnes go into landfill each year. To build a truly circular economy, wood will need to be re-used on a grander scale. Orlando Rojas at the University of British Columbia, Canada, and his colleagues have invented a process that dissolves lignin, a glue-like component inside plant cell walls, and exposes cellulose nanofibrils, which are tiny fibres also found in the plant cell wall. The method involves a solvent called dimethylacetamide, used in the presence of lithium chloride. When two pieces of wood treated in this way are brought together, the nanofibrils bind to create what the researchers call a “healed” piece of wood. Although this no longer looks like natural wood, it has better mechanical properties. Tests show it is more resistant to breaking than stainless steel or titanium alloys. ADVERTISING “We get a mechanical strength that supersedes the strength of the original material,” says Rojas. “It works because we use the inherent properties of cellulose, which is a material that binds together very strongly by something called hydrogen bonding.” Read more: Wood can easily be turned transparent to make energy-saving windows Not only can wood treated this way be re-used to create new objects, but the treatment process can be performed repeatedly on the same pieces of wood to extend their working lifetimes. “This is a really elegant way to heal wood, using a common cellulose solvent, recovering and enhancing the mechanical properties of nature’s wonder material,” says Steve Eichhorn at the University of Bristol, UK. “The approach is evidently scalable and therein lies the challenge to take this technology to the next level.” Rojas and his team didn’t examine how much their method would cost if scaled up to an industrial level, but all of the techniques used are well-established. “The processes that we use here are very typical in wood processing,” says Rojas. “So scalability is not an issue.” Journal reference: Nature Sustainability, DOI: 10.1038/s41893-022-00887-8

My Mother seems to be replacing hers all on her own. Walking like she used to, still a bit of aphasia, but can get a witty retort out pretty quick. And she remembered that she owed me £480 quid to get the shower fixed 2 weeks after the event. Nowt wrong with old ladies, though not sure I want to grease myself up in my shreddies and dance for them, that is more @pocster's fantasy.

Never read it, but I am sure it is good. I have some old Level 3 TEC books, and the Penguin Dictionary of Building Terms. Builders like all other professions, take well understood words and phrases, then give them a completely new meaning, often almost the opposite of the true dictionary meaning. Don't get bogged down in technology. The 'science' f building is very basic. Gravity holds it in place, wind tried to blow it over, thermal energy leaks out. Plumbers and electricians drill holes. windows don't turn up on time. Plasterers get the painters to clean up after them.

Welcome. Take this dreaming time and turn it into learning time. I cannot comment much on planning and layout design, but getting a grounding in relevant mathematics and physics (GCSE level is fine) is well worth it.

Really down to how YOU want it to be designed and operated. There is nothing fundamentally different in wet heating system. Hot water goes in one end, room is heated up, colder water comes out the other end. How you split it is is more down to house design and lifestyle. My small house, 5 room and a hall/landing, would work well with just one zone. My Mother's house 11 rooms and a hall/landing, would probably need 6 or 7 zones, and a largish buffer tank as a lot of the time only 3 rooms are used (dining room has become a storage room).

Is it pleasant for them? My Mother's house is at about 78 F 25.5°C. Way to hot for me most of the time, but if I am just sitting down and reading it is lovely.

Back in the 1980s, a friend's Father was a chemist for ICI/Dulux. He said to put paint on as thick as practically possible because they were designed to be applied like that. Shame I have lost contact with my mate who worked for International Paints. He was a useful contact when problems arose.

This is the problem of using percentages. If he had left the door open then that decimal fraction may have dropped to 2%. There is also a case of how it is measured. Is it a decimal fraction of all losses, all losses minus any gains (solar), losses only when the heating is on, all losses only during the heating season, regardless of heating system on/off state. Then it has to be correlated with temperature differences between the OAT, IAT and GT. Much easier to estimate the actual losses, when heating, to the ground i.e. 5 W.m-2 or 50 kWh.year-1. In statistics, first question is 'is it a large number'.

Welcome. So that accounts for my low water pressure a few days back, and when I returned on Monday my murky water. Out of spite, drill a borehole and get a sewage package plant in. Don't pay the company that charges the most in the country a penny.

So said The Club of Rome, in 1969. There is plenty of room and resources. Just need to be sensible and share it out a lot more evenly.

Do you really want a wood burner, there is a reason the emissions have been reviewed and tightened up. Pollution killed 9 million people worldwide in 2019 alone Pollution accounted for one in six deaths three years ago, a figure that is unchanged since the last analysis in 2015 HEALTH 17 May 2022 By Jason Arunn Murugesu A stock image of smoke and steam being emitted from an industrial plant Ian McKinnell / Alamy Pollution killed 9 million people globally in 2019, accounting for one in six deaths, an analysis suggests. Rich Fuller at the Global Alliance on Health and Pollution in Switzerland and his colleagues first assessed the impact of pollution on premature deaths in 2015, similarly finding it caused 9 million fatalities. To uncover how pollution-related deaths may have changed, the team repeated the analysis for 2019, using data from the ongoing Global Burden of Diseases Study. “The thing with pollution is that no one actually dies from pollution directly,” says Fuller. “They die because pollution gives them a disease that then kills them.” The team found that the overall number of pollution-related deaths is unchanged from 2015. However, fatalities caused by household air pollution specifically, for example burning wood indoors, fell from 2.9 million in 2015 to 2.3 million in 2019 as many countries switched to cleaner fuels. Read more: Harmful air pollution now affects 99 per cent of everyone on Earth Deaths due to outdoor air pollution, however, rose from 4.2 million to 4.5 million. This is due to increasing numbers of cars and factories, says Fuller. Burning fossil fuels releases fine particulate matter with a maximum diameter of 2.5 micrometres, called PM2.5. This can go deep into our bodies, and has been linked to heart disease and some cancers. Lead pollution is also rising globally, although it is unclear why. In 2015, the researchers estimated lead caused 500,000 deaths, a figure they now estimate to be at least 900,000. Overall, more than 90 per cent of pollution-related deaths occur in low and middle-income countries, according to the team. “Much of the pollution comes from the rapid industrialisation of many of these countries,” says Fuller. The latest analysis is based on data from before the covid-19 pandemic. In the UK, lockdowns temporarily led to fewer vehicles on roads, easing symptoms for people with conditions like asthma. The pandemic’s effect on future pollution analyses is unclear, says Fuller. “I know that air pollution went down during the pandemic but it’s back up again now,” he says. Fuller hopes the results will led to better pollution monitoring and awareness. “Pollution is one of the three major global issues of our time,” he says. “It is climate change, a loss of biodiversity and pollution.” “The number of global early deaths from exposure to pollution doesn’t surprise me,” says Eloise Marais at University College London. “What’s most concerning is the lack of adoption of measures to address the issue”. Journal reference: The Lancet Planetary Health, DOI: 10.1016/S2542-5196(22)00090-0

Assuming that was going to be the location of a radiator, why would you fit on to an external wall.

Interesting. Will have to ponder those charts and then see. I still wonder about making my old storage heaters fan assisted. I like the idea of using magnets to attach things.

Brilliant. You going to add some monitoring while you are at it?

Yes, a GRP roof, easy to attach and seal to. I think the original FiT system put, through financial return, too much emphasis on maximum yields. The practicalities of using generation should be considered carefully. Battery storage is a way of not having to think too hard about this, but is really a failure of design contingency system.

Probably less complicated than a radiator system. Less than a radiator system, unless you surface mount all pipework. Pump in enough energy (heating), or pump out enough energy (cooling) and that problem vanishes. I think you may be confusing the thermal distribution system i.e. UFH, radiators, forced air, with the heat source i.e GSHP, ASHP, oil burner, gas boiler system (2 types) etc. Get a proper thermal model done at the design stage, this will include the appropriate amount of insulation for UFH, and an air change target i.e. Less than 1.5. The better, thermally, you make your house perform, the smaller the heating system needed. Small problems are easy to solve.