The author expresses his thanks and gratitude for the help extended to him in the compilation of this manual to the following Companies and Organisations:- Albion Water Heaters Ltd http://www.albion-online.co.uk Learn Plumbing Ltd http://www.learnplumbing.co.uk Caradon Stelrad Ltd http://www.stelrad.com Fernox http://www.fernox.com UK Copper Board http://www.ukcopperboard.co.uk Danfoss Randall Ltd http://www.danfoss-randall.co.uk Freezemaster Ltd http://www.freezemaster.co.uk Goto Online Ltd http://www.gotoonline.co.uk Grundfos Pumps Ltd http://www.grundfos.com Heatrae Sadia Heating Ltd http://www.heatraesadia.com Glow worm http://www.glow-worm.co.uk Honeywell Control Systems Ltd http://www.honeywell.com/uk Martindale Electric http://www.martindale-electric.co.uk Monument Tools Ltd http://www.monument-tools.com Myson http://www.myson.co.uk Shires Safety Consultants http://www.shiresafety.co.uk Water Regulation Advisory Scheme http://www.wras.co.uk Book design & layout by Tom Callaway of Colourworks Design & Print http://www.colour-works.co.uk     Other Links   DIY Doctor http://www.diydoctor.org.uk gotoplumbing.co.uk http:/www.gotoplumbing.co.uk toolbag http://www.thetoolbag.com/ Underfloor Heating DIY http://www.underfloorheatingdiy.co.uk/
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