”even when the the fire goes down the radiators are still warm for some time after”

Heat Hero, its excellent, I save fuel with it especially this winter, the house is always warm, even when the the fire goes down the radiators are still warm for some time after.   It takes no time to heat the house, and in the morning its still comfortable, the water is piping hot, every home should have one, I would highly recommend Heat Hero for economy and efficiency. Brilliant idea, well done.