In a summer cottage at Far Rockaway, L. I., it was desired to have one boiler supply both kitchen and laundry and be heated at will from either range. K is the kitchen and L is the laundry range set back to back against a partition P. B is a 50-gallon boiler receiving cold water through a pipe C and supplying hot water through a pipe H. The sediment pipe A has branches D and E to both water-backs. When the kitchen range is used the circulation is through the pipes F, D, and G, but when the laundry range is used it is through the pipes F, E, and I. The pipe G was first connected to the boiler at K, as shown by the dotted line, but did not give good circulation. The present arrangement is satisfactory. The diagram is made from data furnished by John Renehan, New York City, who designed and executed the work.

HEATING A KITCHEN BOILER FROM TWO WATER-BACKS.