Best Heating System or Product

Each entry in this category should be for a single product that the entrant believes is the best on the market. This could be because it is better designed/manufactured, better value, or simply deserves to be the de-facto choice for self builders.

The product can be anything that generates heat in a home, including heat pumps, eco boilers and stoves. Details of the product are required, ideally with images of it installed in a home.