(¡as is rarely used by the amateur gardener, hut 1! the greenhouse is to be heated gas may well be cheaper overall than the alternatives of electricity or fuel oil. The installation of a mains gas supply is not a job for the home handyman; similarly, a supply of bottled propane for heating would need to be professionally installed.
Greenhouse interior Rod-iype thermostats [on root frame) are widely used to cortrto! the output ol electrical heating systems.
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