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  • If you mount 100mm square mirrors on the side of your house with quick drying epoxy resin possible thickened with river or beach sand you can focus each one individually on the boiler it will do the job - its easy and cheap - I mounted 50x50mm mirrors on a tea tray with blue tack/press stick and set my microscope box on fire - plot the path of the sun on a board then bend your copper boiler pipe to follow the path of the sun = static sun tracking device : )

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