How many liters is the household warmer

Divided into two kinds of size, small warmer about two liters, large warmer about four liters. Warmer is the use of heat distribution is divided into the principle of conduction, convection, and radiation of the three. Warmer stopper is made of cork, and cork is not easy to heat conduction, try to prevent the occurrence of conduction, the middle of the warmer is a vacuum, try to prevent the occurrence of air convection; and the warmer bottle gallon plated silver white, can make the heat reflected to the bottle and not radiate out.

Divided into two sizes, small warmer about two liters, large warmer about four liters. Warmer is the use of heat distribution is divided into the principle of conduction, convection, and radiation of the three. Warmer stopper is made of cork, and cork is not easy to heat conduction, try to prevent the occurrence of conduction, the middle of the warmer is a vacuum, try to prevent the occurrence of air convection; and the warmer of the bottle coated into a silver-white color, you can make the heat reflected to the bottle and not radiate out. In accordance with the number of people at home to choose, and secondly, pay attention to the insulation and sealing, pour boiling water into the bottle and cover tightly, a few minutes after the bottle with a hand to feel whether the phenomenon of warmth, if there is a bad insulation.