you should have had the concrete laid to the right height to suit your underfloor system ie insulation,pipe and recommended cover of screed 200mm down sounds to be too much you could allways screed over before the insulation to get the right depth or double up on insulation but that might be...
ten jobs a day local isnt that dificult when its one make of boiler van full of spares if in doubt you can swop bits in and out its the no shows that bugger the day up and if its tenants you get plenty of those
my brother has just phoned me complaining his time clock isnt working just worked out when i fitted it its a landys and gear mini minder any guesses how old it is?
you need live and neutral to power the reciever the switch terminals are isolated and can be used for either 24v or 240 what they refer to is using a loop from the live to common to give you 240 across the isolated terminals but you need to check which volage the existing stat is running on as...
my last makita lasted 10 years of heavy use so i bought what i thought was the same again and it wasnt till i needed it i realised it didnt have reverse on the new one