Frozen water pipes and unheated bedrooms had to be something new for a wealthy socialite.
If N be the length of the unheated mercury column in degrees, t the temperature of this column (generally determined by a small thermometer placed with its bulb at the middle of the column), and T the temperature recorded by the thermometer, then the corrected temperature of the vapour is T-+o 000143 (T - t) N (T.
dandelions used to be grown in unheated greenhouses to provide salad leaves in winter.
Warm compost promotes the rapid germination of most herb seeds and is particularly useful for gardeners who raise their plants in an unheated greenhouse.
Choose plants that will over-winter in an unheated greenhouse, or grow tender plants and seedlings on a sunny windowsill in the house.