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Absolute rubbish 8kw of rads with a DT of 20deg requires about 0.35 m3/hr in 15mm this will give a velocity of 0.55m/s and a head loss of approx 2.7m per 100m !! please tell me why 15mm is incorrect if there is enough residual pump head in the boiler ?

Just got a new compressor and its 3 Phase im trying to work out cable size, motor data plate says 15kw 29A so with 3 phase is the 29A per phase or split across the 3 (9.6A)

I've been given a gas fired tandoor from a disused Indian resturaunt that I will be piping up in the garden Roll on summer keema kebabs & nan breed

Run it at max for 2mins should do about 0.1 m3

Yes

Trafolyte is the plastic, not really an on site job you need something like this http://www.ukengravingservices.co.uk/engraving-machines/xenetech-912-engraving-machine

The point I'm making is if there is less than the allowed pressure drop across the pipework then there is no need for a 1" meter union Surely you didn't fit a u16 just because you needed 35mm pipework with a demand of less than 6m3 Didn't someone just mention the industry being full of...

Yes can see that, so what would it need for 35mm ?

Why should it be 1" x 28mm !!!!

A U16 meter will supply 16 M3/hour of gas, that equals approx 172KW

[/url] right im getting back to you !! :shock: this post is about pipe sizes not converting measurements imperial pipe is measured ID metric is OD !! 1/2" and 15mm 1" and 28mm 2" and 54mm will all fit :shock:

it will not be sloppy it will be tight 1" is slighly bigger 28mm fitting will go with a bit of force Ive never needed to use an adaptor !

depends on the tempreture drop required across flow & return

Troll

No, its new builds and change of use of building !

Never, thought it was new builds and change of use

Proves what a joke the acs system and most assesment centers are

then get an Intergas or atag that is right for your house and get a heating engineer not a builder to sort it out !!!

Right I'll try again because all I've learnt from some idiot on here so far is that 1380w is enough and I don't need 2,2kw !!! Can someone please explain why I can't upgrade MCB to 10a