JohnMo

Is that code for I can't be arsed. Or I can't find anything that supports my assumptions?

Your the man with numbers - show us. Pot holes Waiting lists School success Wealth difference from the rich in society to the rest us. Generally thing that matters to normal people Those are the things I spoke about. Without those being maintained the country slowly goes down the toilet - if you find a public one anymore.

Good, point, but NIMBY's aren't a good solution either. They just cost a load of tax payers money and everything takes an age. Leading to a great deal stagnation - Just as the UK is at present, slowly turning into a mess.

But with an average of 27 pupils per class in UK, that's nearly 25% higher than other European countries, with closer to 20, so you can play with statics any way you want.

Really wasn't the point, it how many beds are available per capita, same for police, schools etc. not where the person comes from, giving the care. But it bonkers our UK trained school teachers, doctors and nurses aren't getting jobs.

Petty the services haven't kept up, (schools, hospitals, doctors, dentist police) with population growth

With decent bypasses around towns that don't cost millions extra, take decades to get through planning to keep a few happy. Aberdeen bypass was delayed for decades to keep a few idiots happy. Not forcing way too much traffic through town and city centres instead of around them. A96 bypasses delay for decades again because a few complain (mostly farmers trying to squeeze the last £ from the deal). We would have had onshore wind and solar in England developed over the last decade. For the greater good doesn't for the lowest common denominator. It also means knocking down slums and generally crap building people are made to live in and replacing with new.

They don't do that. In cooling mode the 4 way valve starts in cooling mode. Otherwise it would end up chasing it's tail. But in periods between cycles (circulation pump on) it may see this as heating or cooling dependent on what temperature is see on the flow or return. But as Vaillant is a default heating ASHP with an additional widget to get cooling, it may just count everything that is not active cooling as heating anyway. It's energy used one way or another so would be included in the CoP (EER) calculation if your doing that.

Just embrace them, make them a feature. Be proud to be doing your bit for your pocket first and the environment second. Nothing wrong with panels on show. In six month time you will going out to see they are still there, because you and no one else really sees them.

When I did a degree in 2001, one of the topics then was global warming, strange weather patterns and prolonged draught periods. Then the sea levels rises and floods the aquifers with sea water - then the next major wars start, over possession of water rights - Joy

Just ban it, just as Singapore did and put in place a law for the "greater good".

Don't you have dial a bus? Thought most places in rural Scotland had it, plus if your over 60 it's free. A mate used to drive one of the mini buses and people would take a ride from here to there and back again, spend 5 mins doing something while the driver waited then took them back home

Is the heat pump running for long periods or is it cycling. If you get a short running cycle it may detect it as heating instead of cooling. But think from looking elsewhere, orange is the colour for heating, red DHW and blue cooling. So it's detected something as heating.

Sorry not read whole thread, but can see the steel lintel, have you plans to mitigate the cold bridge that will cause?

Give us a clue, what are we looking at is this heat pump energy consumption? Red could indicate heating and blue cooling. Did you have DHW heating selected in the red zones?

Most likely true, we have wood, tiles and carpet. Every day usage you don't even notice the transition between floor covering and am mostly in bare feet. Winter with UFH floor not not cold not even warm but not cold, summer with cooling nice and cool.

We explored passive raft type, but went for something ground workers around us are used to doing. Zero novelty, zero learning. Labour becomes cheap they don't need much steering in the right direction. We went ground bearing slab, all bog standard structural engineer stuff. Then paid attention to eliminate any cold bridges and had that added into the design by the structural engineer. Just keep it simple, do what is normal for your area, then pay attention to detail, but make sure you understand the heat flows, making sure any cross section, in any direction, has no gaps (cold bridges). YouTube videos can be good, I watch loads, but plenty are utter nonsense. But a better source of information is Passivhaus.

If your only option is stick panels at silly prices I wouldn't bother, just get a battery and that allows a TOU tariff and use cheap periods during the peak ones

Another thread on this last week - have actually looked a price? Shockingly expensive, not sure how you could ever justify PV going that route. Anything other than standard panels is really an expensive folly. Ground mount and fence mount are other cost effective options

You may want ufh to help it set hard, have this picture of someone walking through wet sludge if it all goes wrong. Maybe ok for a mud hut, not sure I would bother for a house. At least you can dig your way out of it - literally

Two normally closed valves or X plan one normally open the other normally closed for PDHW?

You can if you want, you can get smal.coul units for small ducts so you can get individual room control if you want it. But with an air change every 3 hrs suspect it's feast and famine for heat if the additional thermostat to each room, it's not really a big issue anyway as room temp equalise whether you want them to or not. If heating via UFH and at no more than 10W/m2 your floor temp is about 1 to 2 degs higher on the coldest day than the room, so floor pretty much regulated itself without thermostats getting in the way. Your real issue is getting a heat source that modulates well enough to drip feed energy into the floor. My heat load is about 15W/m² at -9 so average days even our 4kW ASHP has to batch heat, so runs a few hours then off the rest of the day. Cooling via MVHR is pretty rubbish, your flow rates need to about 5-6x higher than your ventilation rates, so pointless.

He seems to be an S plan install, which is even odder on an ASHP

You can heat and or cool anyway you want, each has it's merits. Some A2A systems include humidification for heating, usually by introducing new air, as you can over dry the air I believe with a constant recirculation air heater (A2A). I would look into that before you commit. You are a pretty good airtightness, so will have MVHR, this will give a quite low humidity anyway. So my main concern therefore,⁶ would be low humidity in winter, low enough it's not good for your health. Future buyers, may not understand the concept of using Aircon for heating? Slab heating/cooling isn't the norm either, it maybe on here, but in the real world most people have radiators. Which are rubbish for cooling.

If you are doing liquid dpm, do yourself a favour and use a 2 part epoxy based system. Easy to apply, chemical hardening, so sets in a predetermined time. Apply one day time the next. None of the tacky nonsense. Not cheap but works well.