ProDave

A fan cooling unit, also known as a fan coil unit, is the bit you are probably all familliar with in an office air conditioning system. It takes many forms, wall or ceiling mounted. Pass cool air ( fluid ? ) through the coil and the fan sucks in room air and passes it back out again a bit cooler. Here is an example of some, not a recommendation, just the first picture of different sorts I could find https://www.aermec.co.uk/portfolio/fan-coil-units/ You would typically have one in each main room and the heat pump can feed (within it's capacity) any number of them.

Fill the hole with postcrete is my favourite, pour in dry in stages and pour a bit of water in. Sets very quickly so make sure the posts stay vertical. If it's not too stony you should be able to dig that by hand, As an extra measure, if you buy pointed end posts you can dig as far as you can reach, then hammer the point in a bit further to get the post deeper into the ground.

That's expensive. My friend up here paid £11K for supply and fit of that same system, might even have been a bigger tank than that, and I thought he paid a steep price. You will get £6K back in your RHI payments so the net cost was £7600.

To be honest I would want the INSTALLER specifying what to buy, so you have some confidence he knows how to install and comission it. If you just buy a load of kit and get someone to install it, and it does not work as expected, then the installer will blame the kit, and the supplier will blame the installer.......

The thing that makes it easy to understand is almost all heat pumps only ever heat hot water OR space heating, never both at the same time. Mainly so it can operate at a lower temperature when space heating. this fact alone makes it easy to run in cooling mode on the "heating" circuit when required. Ours has a switched output for a motorised valve so you can use a different medium for cooling if you want to, e.g. a fan coil unit

There are an awful lot of tanks in that quote. A HW tank, a buffer tank or 2 and another one I don't understand it's function at all (the first one) I would be wondering if they really know what they are designing?

All that happened with mine was the SE visited and I dug 3 test pits down to 2 metres deep, and he logged what soil came out from what layer. A few years ago nobody even did this. They just started digging and the builders / building control made a decision how deep to go depending on what they found.

The passive slab is totally foreign to the average Scottish Timber Frame company who expect a masonry strip foundation. but surely all you need is a structural engineer to sign off the foundation, complete with the load bearing points for the frame and any external masonry leaf?

Unless there is something I have not heard of a GSHP produces heat, not electricity (it consumes electricity to produce it's heat)

We fixed with those galvanised steel plates with holes in, screwed to the outside of the window frames then screwed to the timber frame of the house. The window openings in the timber frame were deliberately made too big so the openings could be lined with some Celotex. The small gap between the Celotex and the window foamed. Then the air tight membrane was brought round the reveal and taped to the window Tescon Vana air tight tape from a German supplier on ebay way cheaper than anyone in the UK Compriband used to seal the wood fibre external insulattion board to the outside of the windows. That came from a local builder.

Interesting. I am sat here in my 12ft by 14ft living room, brightly illuminated by a single 5W BC LED lamp in the pendant fitting. And you are saying 10W is barely enough for a shed with a quarter the area?

If the short is L to N the RCD will not trip. At least not until the cable has melted.

If you loop at the light switches, no need for that. Brown and blue into the switch, brown and blue out of the switch. simple.

A lesson in what happens if an untrained person does some wiring, and the bloke in the shop does not advise him. I have lost count of how many times I have found inappropriate cables and loads just spurred off a 32A ring final with not other protection.

The stairs thing is not a matter of how tall you are. you must maintain 2 metres headroom througout the length of the stair flight.

In just 4 weeks it will be midsumers day and the nights will start to draw in.

I keep a weekly reading of our energy usage. I actually have 5 meter readings to take (don't ask) but it tells me exactly how much we use, how much heating and hot water use, how much we generate and how much we export. Total usage is well down from the winter. Heating use is a small fraction of our bill. Other "stuff" uses more than the heating. Now no heating is on you can see the "stuff" usage drop as as the solar PV generation goes up. MVHR and the treatment plant both use about 2KWh each per day., ASHP uses almost 1KWh per week for "heating" even when the heating is off. that is just to power it's electronics to keep it ready to turn on. That's a constant load of about 5 watts.

550 miles to be precise.

This is where you do need to keep an eye on your bills and why I hate this rolling credit / debit thing. At the beginning of the winter I noticed our monthly bill was exceeding the monthly payment so I instigated an increase to the monthly payment to prevent a large debit building up, because I did not want the supplier suddenly deciding to increase it to a silly rate to claw back the debit over a short period. As it happened I seem to have guessed the amount about right as now mid summer I am slightly in credit. I might even reduce my payment a bit now until the winter. Whatever supplier you are with you should get as monthly bill so you can see how much you are using for esch month of the year and decide yourself if the pasyment matches the billing,

A while back we had a rental flat with E7 heating. When we came to sell it and the last tenant moved out, and we sent the final readings the bill came back wrong. I soon worked out the tenenat had been transposing the day and night readings. It took months to sort out. we even had a meter reader visit twice. He took down the readings and gave us a copy of the day and night readings he gave, but as soon as they got entered, the "system" swapped them over as they were "wrong" It took a lot of complaining and aparently they had to trace 2 previous tenants as the bills had been wrong for some time. I guess if automated readings can prevent that error? but then if there IS an error I suspect it will be almost impossible to correct as "it can't be wrong"

When you can get past (ignore) the fact Octtopus's website looks like it was designed by someone in Primary School, it does actually work. I submit a reading each month and within a few seconds the bill for that month is there, and so far has been accurate. And they do allow YOU to set the level of the monthly direct debit unlike IRESA who you had to request a change and it never happened.

Hi and welcome. Abingdon is not far from where I used to live and work for a long time, until I moved a "few" miles north.

To be honest I never saw anything wrong with taking a quarterly reading and paying the whole quarters bill on one go. There was not exactly anything difficult about that for the customer or the supplier. (other than they has to wait a quarter to get paid) Now we have the silly situation that if you want anything other than the default expensive legacy billing, then you have to go to monthly readings and monthly payments. That's 4 times the work for the supplier, 4 times as many readings to process and 4 times as many bills to produce. Then add in you have to pay the same amount each month so they estimate how much you will use in a year and divide that by 12. so they have to manage an account that might be in credit or might be in debit and they might have to adjust your monthly payment. MORE work for them. And the end game is half hourly billing? I can see the admin charges (standing charge?) rising significantly to cover all this extra admin. The whole system is bonkers. If I could find someone that even took a monthly reading and then billed you in full for that month with none of this rolling credit nonsense I would.

Hi and welcome to the forum. Just be aware it is against the forum T&C to actively promote your business . I am sure we can all be of help and you will find the forum a great place to find help and advice.

Then let's have an honest debate, you have to reduce peak usage to even out demand, so peak rate metering and charging is the tool to achieve that and encourage you to change your usage patterns. Claiming anything else like it will save you money is just false advertising. I will let you know what I hear back from the ASA. Quite when all of us with electric ovens are supposed to cook our dinner if it is too expensive to do at 6PM I don't know. So it becomes a bit of an impossible energy time shift.