A sick-room should, generally, be kept at a temperature between 68° and 700 Fahr. In a few exceptional cases, physicians may wish to have a room much warmer, at particular times. When fuel is scarce, and the room is small, it will be best to secure good air to breathe, even at the loss of some degrees of temperature in the room, this being made up by sufficient covering for the patient. But, in most instances, air may be, with care, kept pure and sufficiently warm at the same time.

The best kind of fire for a sick-room is an open wood fire in the chimney-place. Next to that is an open coal-grate, with a good draught to secure it from escape of gas. If only a stove can be had, a wood-burning stove should be preferred. With a stove which burns coal, the greatest care will be necessary to prevent coal gas from getting out into the room, and also to keep the air moist enough by having water in a pan always upon the stove.

Furnace-heated air is objectionable as a dependence in a sick-room, although very well to have within reach to supplement an open fire. The warmth of most furnaces is variable and uncertain; some of them allow gas to get into their air-chambers, and so to pass through the house; and, at the best, they require special pains to provide ventilation, which the heater itself does not furnish.

For the body of a sick patient to be kept warm enough to be comfortable, is one of the quite indispensable things. It should be ascertained from time to time, especially about the feet. Blankets and quilts will not always insure warmth; they only protect it when the body has it of itself. Whenever a sick person's feet are cold, something warm should be at once put to them. A heated fire stone, or a common brick, or a bottle, or pan of hot water, or a bag of hot salt, will do. Only never let your patient be chilled, for a single minute, when it can be helped.