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.