SteamyTea

Not really as there is no fresh air entering the living room, just stale air dragged upstairs.

That isn't the issue in my idea. Not having an inlet or outlet in the actual living room is the problem. May be able to pipe through bathroom and airing cupboard.

Welcome. Have you done a heat load calculation?

Due to my house layout, basic 2 up, 2 down terrace, the easy solution is to fit a lift unit and plumb in the pipes upstairs in the traditional manner, then fit a large, through the wall dMVHR for the kitchen. The living room has the stairs in it, so the landing is in effect the same room. I could put some pipes in between living room ceiling and the bedrooms, but not really worth the effort.

About right then.

I read a story book many years ago about a kidnap. The police used the landline to listen in on the kidnappers. So maybe you are being spied on.

Cured my haemorrhoids going out with a vegan. Just had a donkey kebab for my tea, roll in the morning coffee, the French know it loosens anything.

V2G will probably become more useful in the next decade. Really want Vehicle to My House for a bit more control.

Yes, it is the same problem as ToU billing.

And just for a laugh 421ppm here. No dirty Welsh air.

Are you talking about dMVRH? Why do you think the CO2 levels are too high, and why are they talking a long time to reduce. What is the humidity like in the troublesome places? Have you calibrated the CO2 meter? Stick it outside and it should read about 420ppm, though you are in a dirty part of the country, so maybe a little higher.

You can usually tell if water if from a loft tank or the mains. If you can stop the water coming out the tap with your thumb over the spout, it is from the loft. If you can't, and you get wet trying, it is probably from the mains.

Well you could charge batteries when the grid has excess low carbon generation. Should be easy enough to grab the 5 minute data from Templar Gridwatch and switch the charger on. I think last week most of my usage (22 kWh) was when low carbon generation was over 50% of total generation.

Have you done a HDD test? I have recently posted up a load of charts that take wind direction, speed, temperatures, solar power (not PV) and energy usage. Cant really tell what is happening except if the external air is warmer, the house is warmer. Is that because you have a wood burner?

Not going to make much difference to the PM10 and PM2.5s. Smoke is unburnt fuel usually, it is the combustion by products that give the health problems.

Now it isn't. W is the power and is multiplied, not divided, by time.

Welcome. Insulate and improve airtightness. When I was a lad, I looked at a house that was being sold by shop fitter. It looked like a Sharp's showroom. And a 1980s one at that.

Why struggle. Make an air blower and constantly test and rectify it.

Oven usually have more than one element, can you put one on an external switch?

I have always had vented systems except in one house.

Don't think my cylinder has been over 50°C for over 15 years. Just having the bacteria in the system is not enough to cause the illness, the water needs to be atomised and then breathed in by a vulnerable person. Showers do not atomise the water.

No, that was a good explanation, now know the difference. I think as @IanR explains, once insulation parity it taken into account, there may not be as much price difference as first assumed. Thanks.

Could you expand on the above a little, especially the difference between load bearing slab and a raft. To me they seem very similar.

Question what you do inside the house first. Animal detritus (including humans), lint and microfibres from clothing/furniture, cooking etc will all have a greater impact than what is happening outside. And mould spores.