SteamyTea

Can you build a plant room outside. It does not have to be up to building house building standards, just well insulated.

Lumberjack PU adhesive Glue and clamp.

Other exhaust air heat pumps are available. Is there loft space? Does seem a very odd decision, worth putting the pipes in as it is easy to do. If you want to go electrical, then just heat a 100 lt cylinder of water with an immersion heater. Just taking the piss there, do your hardest to forget about IR or FIR heating, just wasting your time. Why, it will just take up room, about the same as a DHW cylinder, and will be banned, sometime. Have you run a heat loss calculation of your design?

It does degrade, just hopefully slower and in a more predictable way.

That is well worth knowing, I often feel that the terms may be unfair, but have no choice but to sign them if I want the service i.e. banking, energy etc. I am surprised that @Pocster has not been along as he had a similar problem i.e. what he thought was the size was different from what the manufacturer thought was the size.

I think so. It could be that the silicone oil molecule, that is attracted to the plastic or sand, while the other end repels water or carbon.

I don't understand that bit. I think it is just highlighting the structure's properties.

I wonder, if it is possible, to put a lubricant in the flushing water. As long as it is environmentally benign, it could reduce water usage. Those of us that live in wet areas really should be using captured rainwater, should not be hard to design a roof with a gutter halfway down it that runs into a loft tank. Today I would have had about 100 litres at least. I had to unblock the car park drain today. Every so often it get blocked and floods. You may never need to clean a toilet again, thanks to a new material that keeps the bowl free of any waste By Alex Wilkins 21 August 2023 A test of the miniature toilet using dyed honey Bin Su et al. A 3D-printed toilet is so slippery that almost nothing can stick to it, even after heavy use, meaning it could massively reduce the amount of water used for flushing. There are many kinds of slippery toilet surfaces, like Teflon-coated bowls, but they all suffer from a lack of durability. The more they are used, the less slippery they become, so the coating or toilet needs to be replaced for it to remain effective. Now, Yike Li at Huazhong University of Science and Technology in Wuhan, China, and his colleagues have developed a toilet that is extremely slippery and remains so in the face of abrasion. Li and his team made a model of the toilet, around 10 times smaller than a full-sized version, by 3D printing a mixture of plastic and hydrophobic sand grains, using a laser to fuse the particles together and create a complex structure. They then lubricated the surface with a kind of silicon oil, which also penetrated below the surface because of the toilet’s material structure. The researchers tested the toilet by throwing muddy water, milk, yogurt, honey, starch-filled gel and synthetic faeces into it, and found that none of them stuck. In fact, the toilet was just as slippery even after rubbing it with sandpaper more than 1000 times, which is a result of the lubricant oil sitting below the rubbed-away surface, says Li.

You get it from what you already measure, or can measure easily. Use the manufactures data for the rest and create scenarios.

Swapping kinetic energy for potential energy, which will be used later. I suspect the biggest problem is friction/striction. I think I read somewhere that took great a fall can cause problems as the solids stick to the pipe because the fluids have passed by too quickly.

I am looking forward to the Christmas video.

Where statistics comes in. You probably already have a fairly food idea of how much you use, and when, so a basic model would get you halfway there.

Have to offset the standing losses, which may, or may not, be useful.

Welcome. All I ever do is not stop when I drive past Bristol. After a decade, all you will be pulling is your pension, or a catheter.

Right. Need to get the language sorted out. kWh is energy, kW is power. So if you used 47 kWh in 24 hours, that is mean of 1.9583 kW. 47 [kWh] / 24 [h] = 1.9583 kW. The hours [h] cancel each other out leaving just the kW, the power. Now if your heat pump delivered 80 kWh of thermal energy in 24 hours, then that is a mean power delivery of 3.33 kW. 80 [kWh] / 24 [h] = 3.33 kW Say you used 4 kWh for other things i.e. TV, cooking, massage machine, with the remaining 43 kWh going to the heat pump, then your CoP is 1.86. 80 [kWh] / 43 [kWh] = 1.86, which is not very good. I am assuming that you meant 47 kWh of electricity a day, not 7 kW units, which basically means nothing.

Mean load of 2 kW then, how large is your heat pump?

Pop kW, kWh, MJ and J.s-1 into the autocorrect.

!!!

Can you get an ESP32 with a built in micro SD card slot?

Can you not open it, or can you not download it? I managed to do both. Heat loss calculator - Master.xls

While newer oil burners can go into condensing mode, I think there may only be 1 or 2 that modulate. This is why cycling them is so dreadful for efficiency. They start up at full whack, a lot of energy is blown up the chimney, then, a few minutes later the return temperature rises above the condensing temperature, and before it can do anything about it, it has shut down. There is a reason they don't put heat meters on combustion boilers, it would frighten customers.

Report it and give the reason why, someone will be along to sort it out for you.

Mega watt hour. They claim that they don't need any rare earth metals. Indium is a by product of copper mining, so maybe they can use some of the excess energy to process the spoil. Rare earth metals are not scarce, they just tend to be in places then Western world wish they were not.

Basically yes. Really comes down to what happens when something fails. Foam sheets shrink over time, that stresses anything covering the joints. Polyethylene sheet has a plasticiser incorporated into it, so it can move due to thermal and mechanical expansion.

If it is over 9m2 then you need planning permission. The modules and inverter are rated as kW, battery as kWh. But it really depends as some some inverters have minimum lower power setting i.e. 200W, so they often will not run lights off the battery. There are 2 main types of systems that incorporate batteries. One that puts the batterers on the DC side and the other on the AC side. I think most people go for hybrid inverters that that allow batteries to be charged from the AC side. There is a lot more to an MCS installation than just final signoff. Generally why MCS companies will not sign off systems they have not installed.