Gone West

It's all just thoughts at the moment, although it would have a thermostat.

Run off the battery system, charged by PVs and off peak cheap electricity.

I've done the very low energy usage, new build, fifteen years ago, this is an 1840s/1970s, single storey, stone build. I learned a lot from the new build and the works I am doing, are to make it primarily comfortable. If I fitted PIV, it would have a simple electric post heater. This would be used for maybe three months of the year and would only be lifting the input air temperature to around 24C. The levels of infiltration would be much the same as in my new build.

@Redbeard, @JohnMo, @Nickfromwales, @Mike Many thanks for the comments, plenty to think about there. Sorry to the OP for derailling his thread.

I've just bought 26 lengths of 63x38 and 89x38 treated CLS from the local B&Q, and I was pleasantly suprised. It was pretty straight and had been stored under cover. I know it was a small order but I was happy. Very different from the crap I was often delivered from Jewsons when I was building my TF house.

So if I ducted the PIV to the dry rooms then the dMEV would then suck it out.

I'm gradually replacing all the windows, without trickle vents, in my old bungalow, and was going to install a PIV unit, and decentralised Mechanical Extract Ventilation (dMEV)) in the bathrooms and kitchen. Is there any reason that is a bad idea.

Well done, it's a credit to you.

An oil boiler is cheaper to run than a gas boiler. There are also modulating oil boilers. https://sapphireheatsolutions.co.uk/

Assuming your dimensions are external, your roof slope would be five degrees. There are very few tiles that can be used with such a low angle. There are some sheet tiles that would be suitable. The wall plates would be the same width as the wall.

It will only get worse . I started my first new build when I was 59 and it was fine. I'm 74 now, doing a renovation and am knackered.

Yes I am aware of that but @joth said "it's definitely a monobloc" just from the picture of the back of the unit, so I was wondering what the back of a split unit looks like, that is so different from a monobloc. It looks like @-rick- has provided the answer.

What is it that looks different between a monobloc and a split system ASHP.

I don't know much about ASHP, but is it a split system, and they're not water pipes.

There's a couple of companies one is magicman.co.uk https://magicman.co.uk/

They were barrowing the concrete, it was summer, the concrete wasn't flowing out of the barrows, it was coming out in lumps. I didn't get involved in the details of the slab removal, other than to get an assurance that there would be a different team who were competent.

@Mandy D Welcome to the forum. Hope you had a not too stressful build. It would be good if we could see some pictures, we like pictures on here.

We had a similar problem with the high water table forcing water past the pipe seals into our treatment plant. I dug around the seals, when the water table was lower, and packed in around 200mm of bentonite granules. It seemed to seal very well.

We filmed the whole process and saw a lot of incidences of poor workmanship which made us think there were voids in the concrete. We had non destructive testing carried out over the whole slab which indicated a lot of problem areas. Those areas were core drilled which confirmed there were voids. The company accepted the results and the whole lot was replaced at no cost to us.

@saveasteading This might be of some interest. Sorry about the quality.

It was fifteen years ago and it was in my blog at the time. So as not to derail this thread I'll start a new post with the blog details.

You could always get a big bugger like this, to show you mean business. This was my raft being cut up after a crap installation.

@Bramco Many thanks, that's useful information. Will check out Husqvarna and we also have considered having two smaller mowers, so glad to know it's not just us!

We have a garden with six areas of grass and a height difference of 16m between the highest and lowest points in the garden. Would you mind giving some details about your grassed areas and the type of lawn mower you have. We have been looking at the different types and we have a very poor mobile signal here which doesn't help.

Welcome to the forum. Having vertically challenged builders won't hold you back, plenty use stilts for plastering. 😁 Good luck with the project.