SteamyTea

The E7 timings are programmed into my meter. The only reason I bothered to get the meter changed was because EDF said the old radio single one was going to be turned off in a few weeks time (was back in May).

It will. The sad thing is it an easy, but messy, fix. I suspect that they did not put enough resin into the first layer of mat. I hope they put a second one on, but may have not. Water will get in, will be absorbed by the unsaturated mat, freezing will happen, then it is just a matter of time before it fails.

Should be fine.

How long it the cable run and is it going though insulation? What are the chances that the connector you are fitting may get changed to a double socket in the future? I think you are allowed a 5% volt drop. https://www.tlc-direct.co.uk/Technical/Charts/VoltageDrop.html

As strange as it seems, they could impact performance more than you think. The total module current is reduced to the current of the lowest performing cell. This is why bypass diodes are fitted. The voltage only drops slightly when a single cell is bypassed, but the current is the same. There are a few YouTube videos about it

Forget them, what you need is a gate turn-off thyristor. It even has gate in the name.

When was the chart first made? Town gas was phased out in the very early 1970s. And what is a Kw hours. K = Kelvin, the measure of temperature. w = nothing really, but is, when italicised, used, in formulas, for angular speed, in radians per second. You will need a torch as you need to know the external dimensions as well as the internal ones.

It is only addition and multiplication, which are the same thing. Start by measuring your house. That way you have the dimensions of everything.

Will these power lines cause shadows on the modules. If so, you may have to fit optimisers as the blocking diodes in the modules may not be up to the job.

Why do you think that. They work just like any other wet heating system. The first thing you should do is calculate your heat losses. This means finding out about your house construction i.e. walls, floor, doors and windows, roof, then assume you have ventilation losses of between 3 and 6 air changes an hour. Estimate your hit water usage as well Knowing all that will lead you into the size of system you are likely to need. Once you have that information, then it is worth talking to installers. And your free £7500 grant isn't really free. It is a subsidy to installers. So you are likely to still be paying something.

https://en.wikipedia.org/wiki/RC_time_constant Useful this time of year as people like flashing lights to guide Santa in.

The principle is quite simple. To get a fixed amount of air though a restriction, in a fixed time, you have to speed the air up. This reduces the pressure at the restriction. What you can do is add extra air at that point. That air gets sucked in and then dragged out. So more air movement for the same size fan/pump. It is what Dyson does quiet well, but he relies on the general public not realising that it was all formulised in 1738, by Daniel Bernoulli.

I siliconed in the new trim around my bath last night.

Just to add to the whole DIY theme, why not fit a venturi tunnel, small fan, large flow. Actually, why not make the heat exchanger a spiral venturi.

Same here, what I like about it.

Or Lizardite. Got loads down here, just lays around in the sun.

Been known about for a while. https://en.wikipedia.org/wiki/Electrocaloric_effect

When I type S(expletive deleted)horpe I get told off. So tell us all more, we like to know about U-Values, PV and windows.

Neoprene, as used in wetsuits, has a conductivity of 0.055 W/m.K. You can buy 10mm by 600mm by 300mm for 22 quis on eBay. Can't you wrap pipes in that. You can get it thinner if the pipe diameter is small.

It will bubble a lot, get hot, then not last very long. You can get cheap charge controllers. Just one example. https://www.sunstore.co.uk/product/ep-solar-landstar-10a-12v-solar-charge-controller/

It is like driving a car, we just get better and correcting out mistakes without a fuss.

SI units save confusion. Volume = m3 Time = s Mass = kg (the odd one out) Temperature = K Electrical current = A Amount of substance = mol Luminous intensity = cd You will notice that there are no units of volts or force, for instance. This is because they are derived units. A volt is kg⋅m2⋅s−3⋅A−1 and force is kg⋅m⋅s−2

I was blue and lonely I couldn't sleep a wink And I could only get unconscious If I'd had too much to drink There was somehow, something wrong somewhere And each day seemed grey and dead The seeds of desperation were growing in me head I needed inspiration, a brand new start in life Somewhere to place affection, but I didn't want a wife And then by lucky chance, I saw in a special magazine An ad that was unusual, the like I'd never seen Experience something different with our new imported toy She's loving, warm, inflatable, and a guarantee of joy She came all wrapped in cardboard All pink and shriveled down A breath of air was all she needed To make her lose that frown I took her to the bedroom And pumped her with some life And later, in a moment, that girl became my wife And so I sit her in the corner, and sometimes stroke her hair And when I'm feeling naughty, I blow her up with air She's cuddly and she's bouncy, she's like a rubber ball I bounce her in the kitchen, and I bounce her in the hall And now my life is different since Sally came my way I wake up in the morning and have her on a tray She's everything they said she was and I wear a permanent grin And I only have to worry in case my girl wears thin

My 14 year old washing machine has got so noisy over the last month that it is basically unsable. So I called 3 repair companies, one less that 1/4 mile away. They all wanted between £130 and £160 call out, up front, just to look at it. Two where honest enough to say that the drum bearing was now unlisted by Bosch, but they could probably find one that would fit. When I asked about the total cost to repair it, was around £330. Bought a new machine from Argo for £435 delivered. So look on the bight side, at least you are not paying a plumber £150/day to turn up, regardless of doing an work. If I could get away with that, I would turn up at 10 different sites, every day.

Is that the one I sent back, used, but in the original box.