Case history of the month

“How green can you be?” is the message from major energy users Gulley Bull Ltd, who undertook a multi-faceted approach to saving fuel in their head office. They combined magnetic fuel conditioning, which offered a 20% saving, with two kinds of boiler water treatment. One, a simple cartridge containing special stones developed by a NASA scientist, changes a property of water to improve heat transfer by 25%. The other is a patented secret additive which prevents large steam bubbles forming in the boiler and also improves efficiency by 25%. Their building had solid walls, and was hard to insulate, but their energy manager’s researches uncovered a paint additive containing ceramic microspheres which, because they contain a vacuum, act as perfect insulators and promised a 30% saving on their heating costs just from redecorating the offices. Finally, they replaced their heating timeswitch with a control which claims to cuts fuel use by 16% by intermittently turning off the heating, saving fuel without sacrificing comfort: “an ingenious idea which took our total fuel savings to 116%” according to Gulley Bull spokeswoman April Fulstryk.

2 thoughts on “Case history of the month”

  1. I’ve been contacted by such a firm who claims to have this magical secret additive to add to wet heating systems that prevents large air bubbles forming and allow better heat transfer, and quotes double-figure % savings….Is the technology really this simple and effective….? I’m sceptical…..

  2. In a heating system the best improvement you could theoretically achieve from improved heat transfer (fireside AND waterside) is 6-7% and that would be achievable with ordinary good maintenance anyway. Also, what bubbles? If it’s the product I think, they are talking about steam bubbles actually and specifically a phenomenon called film boiling. They probably think that because it’s called a “boiler”, the water in it must boil. It doesn’t, of course. If boiling occurs you know about it because the collapsing steam bubbles make one hell of a racket (“kettling”).

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