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In a very modern boiler, If the return to the boiler is above the required thermostat setting (HW or CH), would it make sense for the boiler to dial down its gas flames?

You're right I meant radiators.

The heat is given out to air around the radiators that ARE heating up? ( guessing ). You can actually use a thermocouple or IR thermometer to measure the temp on the IN and OUT of the heated rads. I do not think there is too much hydrogen production going on inside your rusting pipes :)

OK, I have done some reading, it seems for the length of 33m MDPE 32mm I can accommodate about 40kW. This is OK for a 30kW gas boiler which was my intention. If I wanted more appliances, would I be able to ask for the gas meter to provide two separate outputs each with its own 21mbar pressure?

So very near the boiler, and while still underground, we connect a copper pipe to the MDPE, so that the copper pipe emerges from the ground, and all is good?

33 meters of 32mm MDPE pipe. No boiler installed yet.

1 and 2 : So all I have to do is connect a copper pipe to my underground yellow gas pipe and all is good? 3: Are you saying that regardless of the mains gas pressure, once it goes past the meter it drops to 21 mbar?

Due to costs I may be forced to install a heat pump instead of a gas boiler. As I am learning about heat pumps, could anyone please tell me, do they make one that can switch the gas flow and cool the radiators instead of heating, if you want it? I have this system installed on another house but...

A few years ago I relocated the gas meter away from the house. I then dug a trench and buried a yellow gas pipe MDPE 32mm, that would run from the gas meter to the house. The heating engineer who visited to connect the services took a look at the emerging pipe and said it is not right and I...

I have thought about this for a while, why did cracks appear only on those two freshly skimmed ceilings, there are many more ceilings in the house with no cracks. What is the difference between those two ceilings and the rest of the house? Factors which are the same: 1) ceiling joists - all...

Neither :-) The joists have first been covered with ply. Then we placed the ceiling boards. About 30 screws per ceiling board and 30 screws per ply board. All ceilings in the house, in all rooms but 2, have been done in this way. The kitchen and living are the only two rooms with cracks and...

Same ceilings freshly plastered a month or so ago

Here are some photos I took a few days ago. Maybe I will take some more photos tomorrow.

I fitted the boards and there are plenty of screws. All cracks are on the joints and in both directions. I would say roughly 30% of the joints have developed cracks on those two rooms It is puzzling as there are so many cracks, not just one or two. Why are there no cracks at all other...

Did you ever fix it? What did you do?

Two rooms were plastered a month ago and the ceilings have cracked in many places and it would seem right over the plasterboard joints. The cracks are hairline but are there. I only noticed them yesterday. The plasterers said they put tapes over all joints, but I was not there to witness it...

They, and their mates, are all raking it in. This should be the foremost thought in everyone's mind when voting.

The markets go up and down like a wh*res knickers, there is no rhyme or reason, and if you think there is (rhyme or reason) then you are a billionaire and clearly on the wrong forum.

I want to install a staircase and am trying to decide if I should just place it straight over the screeded floor, or should I place say 18mm plywood for whatever reason or some other preparation? The floor will be covered with engineered wood flooring around and under the staircase.

I do not think so, in my opinion she is yet another scapegoat. Sunak was the chancellor when we wasted/lost many billions of pounds to family and friends of politicians with PPE, track and trace, furlough schemes, work from home rebates and more. The amount of sleaze in the tens of billions and...