Marvin

I think it's also what people are accustom to and expecting. We now have an expectation of instant results in life! Light on. Kettle on. phone on. computer on. Heating what?!

This is the whole point that lots of people don't understand. Low (low water temperature) and slow (slowly warming up the building) the way to go(most efficient and therefore least expensive way to heat the home)!

Yes. Combi boilers are usually sized according to the hot water demand not the building heat demand.

"IF its designed correctly, then i will be warm." Er... if the building has the designed thermal resistance and air tightness......

Further developments in ASHPs Higher output temperatures and greater efficiency achieved using new refrigerants. https://www.bbc.co.uk/news/business-67511954

Depends if its snowing or the house is on fire.

Hi @ProDave Further to my PM: https://www.telegraph.co.uk/money/investing/cant-touch-300000-broker-shut-down/ Be warned.

It is only the condensate from indoor air, so not corrosive. No more so than the moisture on windows. Ours produces very little

Hi @MarkW1979 Delta 30. That's the difference between the room temperature and the water temperature entering the radiator (so 20C room 50C ASHP water)

Hi @ProDave I wouldn't commit to anything too costly at the moment. Locking some spare cash into 5% interest will give you less grief. I have had clients with 2 homes and its nothing but a pain in the long run. (One couple with a house in France and they got a call at 2 in the morning to say that the roof had blown off) I would really recommend watching the following: Good luck Marvin

Hi @AndrewR I do not know the official requirement but I would have a fuse box inside and have at least 1 lighting fuse and one ring main. I wouldn't want to be fiddling around with fuses outside in the dark in the pouring rain...... Good luck Marvin

When using the boiling tap was the building inhabited, was the room at normal household temperature...

Hi @FreddieW @ETC's layout feels better especially as it has a bathroom, and cloakroom(un labelled).

It depends on the height the units starts above the sink..... Yours looks pretty close.... Also the quooker boiling tap runs a lot higher temperature than a normal hot water tap and will produce more steam. Also the hot moist air will go into the cupboard where the cooler air will condense the moisture. Also you have no pelmet at the bottom of the wall unit which would usually deflect the passage of the steam. Usually units above a sink, when I have installed them start higher above the sink (Short units) for access and light needs. M

If the strip of land is not part of the highway who does it belong to?

Hi @FreddieW I would want a planning exemption certificate Long way from kitchen to lounge... Old bed 2 would have no windows?? 5 bedrooms and 1 bathroom? Lets hope hot curry is not on the menu.. Good luck Marvin

Hi @mid-ulster N ire If you could do a quick sketch it would help people understand...... The rules on applying for planning permission, I think, in England, have changed a little, meaning, as far as I understand, that you can only apply for planning permission on your own land or on other peoples land with the express permission from the owner/owners. (I may be corrected by someone about this) So who owns what? On the sketch please indicate exactly where and who owns what, and what items people have legal rights to access, and this may help you to understand whats what. Good luck Marvin

Our MVHR trips to battery supplied power when the mains goes off.....

Hi @vab89 I have done a bit of digging.... My way of approaching your plan would be to check out the following personally before getting involved with Architects and builders. The major obstacles of concern for me would be: Planning: When I have been involved with extensions involving a separate access they were denied and access had to come via the main front door....!! Conservation rules: What are they? I think you will need planning permission. Check for an Article 4 Direction (A4D) which is part of planning legislation that allows the council to remove permitted development rights including changes of use from an area or a particular property in certain limited situations where it is necessary to protect local amenity or the well being of an area. Look at web site, link below, and scroll down to the bit titled: Do I need planning permission to carry outworks to a house in a conservation area? https://urbanistarchitecture.co.uk/how-to-get-planning-permission-in-conservation-areas-in-london-and-the-uk/#:~:text=Basic single-storey rear extensions,build one under planning permission. Check previous planning applications in your area: A similar application was permitted in your area, however no front door and no second story: Use this reference 22/04965/HSE https://publicaccess3.croydon.gov.uk/online-applications/ TPO: As others have said if you need to do works near a tree with a TPO, be it access requirements or foundations or drainage, this can be expensive. With limited knowledge of your home and grounds I would make the assumption that piling would be the only way forward IF a change to the existing foundations were required. However access and space for the equipment become a challenge... Drainage: Where does the rain water go? Sewer? soakaway? Will the work involve digging more holes in the ground?? I'm only being Mr negative to try and save you money. Good luck Marvin

I always usually do studwork filled, Vapour barrier PIR sealed and then fire resistant plasterboard, because then item cut into the walls (electrics for instance avoid cutting the membrane.... Others may disagree.

and then again still problems with radiation, water coolant challanges and high investment running costs....

Another dreamy headline. Will this be the one? https://www.independent.co.uk/tech/nuclear-fusion-breakthrough-clean-energy-b2466344.html

We produce twice what we use but still buy electricity because we don't produce it when its needed. Sound familiar?

Probably more like having 2 cars and driving one at a time: Tax, Insurance, MOT, purchase and deprecation all year if you use them or not. My point is I expect the UK cost of electricity to increase above the rate of inflation going forward because of all the deals, subsides, price caps, repayments, grid issues and so on. Really what we need to do is to improve storage techniques by utilising as many ways of storing energy as possible, looking at how the energy will be used before deciding how the energy will be stored.

Another added cost coming up..... https://www.bbc.co.uk/news/business-67494082