Models: Trying to start a fire with an electric drill. A Norman chimney vs a proper one. A life size 2 dimensional house model with radiators and boiler. A glass radiator. A balanced flue.
Machines: Jacob's ladders by Rex.
Guests: Solid fuel, oil and natural gas boilers.
Films: Yet another silly 40's promotional film, this one for the Ascot gas boiler.
Extro: The model house springs a leak.
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