System SizeMost problems with solar thermal systems are caused by overheating. It is very important to get the right sized system for your household. This depends on your regular use of hot water.
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Collector TypeThere are two types of solar thermal collectors, panels and evacuated tubes. Evacuated tubes usually work best in cold climates like the UK, but can't be used for drain back systems.
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Back UpSolar thermal won't supply 100% of you annual hot water so it important to have a back up system properly integrated. This can be a heat pump, gas/oil boiler or just an electric immersion heater.
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