There are numerous conveniences to be operated by electricity, such as chafing dishes ($13.50), flat irons ($3.75 up), curling-iron heaters ($2.25 up), electric combs for drying hair ($4), heating pads, in lieu of hot-water bags ($5), and many articles for the kitchen. These are operated from flush receptacles in baseboards or under rugs, or from the ordinary light sockets. THE TWO SURE WAYS OF HEATING There is only one efficient and healthful method of heating a house, and that is with a hot-air furnace. I have that on the authority of a man who sells hot-air furnaces, and he ought to know. Substitute "steam or hot water" for "hot-air furnace," and we have the assurance of the man across the way who sells boilers and radiators. The beauty of it is that each proves his case to one's entire satisfaction--not only that his own system is a marvel of perfection, but that the other systems are dangerous to health and breeders of unhappiness and really ought (though he wouldn't like to say so) to be prohibited by law. So we shall have to decide the question for ourselves. If we err, we can still abuse the dealer, or the architect, or the contractor, for letting us make a mistake. THE HOT-AIR FURNACE The hot-air furnace costs least to install. (We leave stoves out of consideration.) It is also supposed to be easiest to manage. That, in a sense, is true. A good furnace will act pretty well even under indifferent direction; a bad one cannot be made much worse by the greatest of stupidity. However, the average person can run the average furnace with a fair degree of satisfaction to the household, if not to himself. For a house of six to eight rooms the furnace may be considered an efficient means of heating. It requires more fuel than some other apparatus, but there are compensations. Since ventilation and heating are inevitably associated, the argument that the furnace provides for ventilation is a strong one. If the air is taken from outdoors, passed over the radiating surface into the rooms, and then sent on its way, something like perfect ventilation is assured. If the air is simply taken from the basement--a poor place to go for air--heated, passed through the rooms, returned, and heated over again, we may well pray to be delivered from such "ventilation." The success of the furnace depends not upon ability to keep up a rousing fire but upon a proper regulation of air currents. Many a first-class furnace, properly installed, fails to work satisfactorily because the principle of heating is not understood. Even with the best of knowledge, the air is hard to regulate, and the very principle that gives the furnace its standing as a ventilator must prevent it from being a perfect heater.