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Eco-nomical employee Viv Marsh worked with Justin to install two Eco-58-1800-30 collectors on his own house. This is a deliberately oversized collector field which should supply a very high solar fraction through the year. Viv installed a 260 litre hot water cylinder and uses a heated towel rail as his heat dump, with backup heat dumping (because this is a large collector field) taken care of by a radiator in his attic. An air scoop avoids the need for an air vent on the roof. Viv reports very little input from his boiler over the winter period (2007/2008).
Thanks to Viv for this information.
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SW@eco-nomical.co.uk with questions or
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