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G4Y and SimonD sorry to have started another disagreement over how these boilers should be wired, i didn't mean to. honest :lol: Anyway getting back to the isolation issue. I'me getting the feeling that the best method to satisfy both points of view would be to:- Move the 3 amp supply so...

Thanks for the replies and the complements on the wiring diagram. (I'm a structural engineering draughtsman so no big deal :wink:) The boiler is in an upstairs cupboard. The 3 amp supply, wiring centre, timer and 3 port valve are all located in the airing cupboard across the landing. So...

Dan & Gas4you thanks for the replies just to summarize I need to:- 1. Remove red link between boiler terminals 3 and 4 2. Remove Neutral wire between boiler terminal 5 and wiring center terminal 5 3. Add neutral wire from wiring center terminal 5 and wiring center N terminal...

We are in the process of having a new boiler installed. Neighbours an RGI and is happy to do all of the corgi essential items leaving me to do the rest with help from him as needed. We had previously replaced the old programmer and cylinder stat with new and included a room stat which the...

Hate to state the obvious, but did you unplug the extension lead that got left out in the rain, or is it still plugged in and soaking wet causing the RCD to trip. I'm not an electrician so it might not be the cause but i didn't notice you state that the lead had been removed, only that the...

Just run some numbers and your joist sizes will not work with the required imposed load of 1.5kN/m^2. 125 x 50 grade C24 joists at 400 ctrs spanning 2.1m will work :wink: Steel beam would need to be 127 x 76 x 13UB. with joists built tight against web to restrain beam from buckling...

I work for a structural engineers, and reading what you have wrtitten its sounds like you can not afford to not get a structural engineer involved. Your floor has to be designed for a live load in kN/m^2 based on the intended use of the room not from the size of joists being used. and if you...

Wickes in Bedford still sell them. although they have never had a price sticker anywhere near them so have no idea how much they cost

you need to remove the top section of the valve. usually a ring that will screw down to allow the TRv body to be removed, then you need to screw on a big blue cap, a bit like a coke bottle top to shut of the vale completely. You might habve the blue cap laying around in a drawer. failing that go...

or you might just turn off the whole streets supply, i;m sure the water board will come out quicker if the whole neighbourhood is phoning them to complain of lack of water at 9pm when the've all exhausted the water in the cold water tank. :lol: fill up the bath before you start so you can at...

Just out of interest, when i had to turn of the water supply in the street for my last house i didn't have a stop cock handle but i found that the end of the handle for my trolley jack had a square hole in it which fitted the top of the stop cock in the street enabling me to turn it off, Word...

i bought the plastic stanley box http://www.tooled-up.com/Product.asp?PID=10480&MAN=Stanley-Rolling-Workshop-Xl-1-92-279 about 4 years ago and have found it to be quite a sturdy box. Like the one you mentioned it breaks down into 3 parts meaning you can take just the sections you need. The...

I think the water held within the plastic pipes might be quite an effective conductor of electricity :shock:

Bought a 3 pack of stabila from Costco for about £25. 150mm 600mm and 1200mm

Although the wall sounds like it is probably not "Load-Bearing" you will probably find that when the wall below is removed the floor will deflect and cause cracks to appear in the partition wall to masonry wall junctions at first floor level. Before you remove this wall you should take down...

I work for a structural engineering company and the advice you have been given is 100% correct. Based on old rules of thumb of 0.5 x span in feet + 2inches = joist depth for a 2" joist so 4m = 0.5x13ft+2inch = 9inches so the joist are under sized for use as rooms as they are. Sounds like...

check to see if there is a wall above the joist that may be being carried through the joist onto the wall below. sorry just re-read the question, does the parallel joist sit on the wall or just next to the wall that you wish to remove

Hi Fred, hows Wilma. Have been reading your post and am wondering how the Local building control inspection business works. Am looking at doing a CU change in my house in the future and would like to do as much as possible myself. My dads mate is a time served spark but is not Part P...

1/2" = 12.7mm or is this the internal diametre. if so is copper pipe really 1mm wall thickness

A DPM stops water and water vapour from being transmitted through it. Ie 1200 gauge Polythene sheet. A vapour barrier allows water vapour to pass through but not water droplets so it will breathe a bit like a waterproof coat made using goretex. A big difference in Performance, useage and price