We provide expert advice, testing, service, warranty, and support of mini computer systems and accessories, and can also build and support customised solutions. PS don't hit anyone when you through it at the wall. Failed to get answers. Being an old house, the chimney stack itself is cm x 50cm so the pot was the only option to get the anemometer up high enough and secure enough without it being a blot on the house for the other half. The yellow is probably creosote leaching.
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