Heating and ventilation
A greenhouse that is too cold in January or too hot in July loses plants either way. These guides compare heaters, vent openers and the kit that keeps the temperature where you want it.
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Heating and ventilation
Electric vs paraffin heaters
Electric, paraffin or gas greenhouse heater? A worked winter running cost for a 6x8 kept frost-free, thermostats, safety and the models worth buying.
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