SteamyTea

Have to factor in extra floor insulation.

Yes. I thought that was what you were saying.

It is easy on my 8 year old Motorola E.

Not sure what you are saying. Are you saying that a fee percentage based on price is better, or an initial fixed fee is better. (It has been a long, and stressful week for me this week, so may be being dumb)

Irish Building Regulations are here. https://www.gov.ie/en/collection/d9729-technical-guidance-documents/ Quick search it seems that Irish Part L covers overheating.

Isn't there a protocol for doing this for contracts? Seem to remember that most industries have formal payment methods as part of the contract. If a client came to me (in the past when I had to deal with this sort of thing), I would give them more respect as it shows they are serious and professional.

Is it is a Type F as used in Germany, is so, should be able to handle 16A, so around 3.7 kW, though constant usage pay be a bit lower, maybe 2.5 kW.

Repetition is a good way to learn. We don't often see kw/h on this site these days, so I must be having some effect (or is it affect). I set it up as an autocorrect, along with kWh.

Depends on the material, and how the crystalline structure is arranged. I never worry about the number of atoms in a structure, it is the phase they are in, or how they are arranged, that is important.

Excellent @Alan Ambrose. May have missed it when you mentioned people. But it is worth seeing how many previous companies they have had. As for holding companies and family members, there are often tax advantages to these sort of setups. Which may mean they know how to take advantage of the tax system (a well run business), or they are trying to not pay taxes (a bad thing). That may be harder to spot.

That is because there is not much temperature difference between the emitter and the surrounding air, so not much density change. Ideally, the emitter would be very close in temperature to the surrounding air, which is why UFH does not cause updrafts, but emitters under windows do (you can fly a paper plane above one). Radiative forces are calculated from the Stefan-Boltzmann constant multiplied by the forth power of absolute temperature. Then the area of the emitter and the receiver, as well as the relative angles, and the inverse of the square of the distance MUST be factored in. And don't forget it is travelling though air, which will absorb some of the energy because of the water content (a reasonably good absorber of IR). If the radiative component was significant, we would be running IR heating everywhere. (In reality, all thermal energy, as is all energy, is radiative, but over tiny distances i.e. half the diameter of an atom)

Other way around I think, until you get to the extremes. The OP has never come back to this topic.

From https://www.energyowned.com/battery-c-rating-explanation-and-calculation.html How To Calculate The C Rating For The Battery? A battery’s C rating is defined by the time of charge and discharge. C-rate is an important information or data for any battery, if a rechargeable battery can be discharged at that C rating, a 100Ah battery will provide about 100A, then the battery has a discharge rate of 1C. If the battery can only provide a maximum discharge current of about 50A, then the discharge rate of the battery is 50A/100Ah=0.5C. C-rate (C) = charge or discharge current in amperes (A) / rated capacity of the battery(Ah) Therefore, calculating the C rating is important for any battery user and can be used to derive output current, power and energy by: Cr = I/Er Er = Rated energy stored in Ah I = Charge/discharge current in A Cr = C rate of the battery t = Charge/discharge duration Calculate charge and discharge time t = Er / I 100Ah Lithium Battery C Rate Example For same 100Ah lithium battery, 1C means 100Ah*1C=100A discharge current available. 1C means 100Ah/100A=1 hours discharge time Capable. It means the battery can be use for 60minute (1h) with load current of 100A. 2C means 100Ah*2C=200A discharge current available. 2C means 200Ah/100A=0.5 hours discharge time Capable. It means the battery can be use for 30minute (0.5h) with load current of 200A. 0.5C means 100Ah*0.5C=50A discharge current available. 0.5C means 100Ah/50A=2 hours discharge time Capable. It means the battery can be use for 120minute (2h) with load current of 50A. Sometimes analyzer capacity readings are given as a percentage of the nominal rating. For example, if a 1000mAh battery can supply this current for about 60 minutes, read 100%. However, if the battery lasts only half an hour before the cut-off point, the displayed value is 50%. Sometimes a brand new battery can provide more than 100% capacity. The battery can be discharged using an analyzer which allows you to set your favorite C rate. If the battery is discharged at a lower discharge rate it will show a higher reading and vice versa. However, you should be aware of differences in battery analyzer capacity readings for different C rates, which are related to the internal resistance of the battery.

Welcome There is always a market for everything. We have a Market Place option in the new posts drop down menu. A brief description i.e. make, model, age, usage, where you are in the country (nearest town, no need for the street) and the price is really all that is needed (I dislike haggling, so maybe just what you will accept).

Just to clarify. A C is for coulomb, which is an amp-second, As. But Is nonsense. As is Units matter.

You need to check how much you can connect to the grid.

There is only one thing worse than being talked about, that is not being talked about.

Have you calculated your thermal losses, should give you some figures such as W.m-2.ΔK-1 or kWh.m-2.ΔK-1. First is power, second is energy.

It is a cavity wall, probably with failed insulation, so full of thermal bypasses, the biggest one being free air movement. @Mscott As others have said, best to forget all about the multifoil type thermal barriers. Everyone wants them to work, especially architects and house builders, so desperate are they, they want a special caveat on the standard material thermal testing regimes that will allow their products to pass with a lower R-value.

Can get Doom in a pdf now. I run a tor we server on a first gen RPi Zero W. It is amazingly reliable. My comment was not about the power, more about keeping hold of your own data and away from America.

Have fed, served and tidied up for about 200 people. Go to the pub.

Onlar may be better.

Not the case at all. As power transfer is, in part, a function of surface area, you need larger surface area radiators. The material they are made from makes little difference i.e. steel or aluminium. Temperature is not energy. If you look at the SI units for energy, the joule, you get kg.m2.s-2 [mass times area divided by time squared], no mention of temperature [K for kelvin}.

Her is a him.

Sadly yes, South West Water did a survey the other day and asked my income level. I terminated the interview. I am an optimist.