Show stoics which concealed tho fire in use in greek and roman house holds tho ancients also employed open tubes of metal or earthenware and in addition heated then rooms with charcoal braziers grates for the burning of coal were employed two centuries aboin great britain many thousands of patents have been taken out upon stoves and ranges since franklin and count bumford pointed out tho waste of fuel and of heat involved in open fireplaces in gibat britain and on the continent of europe today flat sheet iron vessels somewhat resembling baking pans covered and filled water are used to warm the feet of travelers in railroad cars |