Natural Swimming Pools: A Guide to Building (Hardcover)
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Posted By: williamdsuggested that argon filled double glazing should be used in south facing windows because a) it has the same U value as standard triple glazing, b) it is cheaper than 3G, c) it is easier to fit than 3G and d) solar gain is greater than 3G.
Posted By: fostertomd) only applicable if the window in question really 'sees' a great deal of low-angle winter direct sun, what with orientation, shading by the building, horizon (adjacent buildings, trees) obstructing low-angle sun. If winter direct sun is obstructed, then no solar gain is available, so go for max U value
Posted By: Cav8andrewpm, do you know what method of gas filling was used? There seem to be two types, immersion tank and a form of injection. Still trying to get my head around which system would be the more foolproof/provable, quite like the idea of the immersion method but that's purely a instinctive feeling.
Posted By: Monty GerhardyPosted By: Cav8andrewpm, do you know what method of gas filling was used? There seem to be two types, immersion tank and a form of injection. Still trying to get my head around which system would be the more foolproof/provable, quite like the idea of the immersion method but that's purely a instinctive feeling.Just ensure that the supplier has BS EN 1279-3 (and -2) certification in place. 1279-3 allows for leakage rates of no more then 1% per annum. With well made units I would expect the actual leakage to be at most 50% of that figure. You'd be daft buying from anybody who doesn't have the certification in place as its mandatory now.Monty
Posted By: MegacyclesI wonder if the argon fill is low ,say 50%, how the gasses distribute within glazing. Does argon sit at the bottom so U value increases toward the top or does Brownian motion keep it all well mixed?
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