You want no leaks really as adding fresh water on a regular basis causes corrosion
Nest or hive
You don’t want them into a aco, can a gully trap be fitted
In addition to the previous advice some new radiators and valves are not suitable for a one pipe system
That should be across the pipe to be off,it’s in the on position at present ,only turn on to top up pressure
Yes the black tap on the silver braided hose
Is the heat mat not an electric underfloor that won’t be linked to the ideal system, pressure on gauge should be around 1 bar needs topping up
Crystal balls out
No it’s not against the regs, best advice is to wrap the pipe to protect from plaster etc
Hardibacker is far superior for this sort of job
You would conceal fix most fires and seal any air gaps around the fire surround
If it’s 3/4 it will be 50 years old, but copper was better quality then so may be ok , can always be pressure tested
The plastic “ honeycomb “ sheets work well filled with slate/ gravel the design stops it spreading, have you had a dropped curb ?
Remove and wash a rad out will give you a idea of how dirty your system is
One pipe system are generally not as good as a two pipe , hot water should be ok have you got the hot water thermostat at the correct setting
Ignore the rad symbol ,what clock do you have ? Has it a hot water and a heating channel ?
Boiler is big enough, pipe work we have no idea of your layout
Head has snapped off, may move with some grips but would have a back up plan on how to turn the mains off in case it goes wrong
Have a good think and find a good architect then discuss your ideas first,he will probably know what will get through planning.
Re tile as it’s a long term solution
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