Mechanical Contracting & Plumbing January-December 1909 . ries both the supply and return wa-ter, in the same direction. During the past five years various appliances havebeen placed upon the market for thepurpose of creating a pressure uponhouse heating hot water jobs. There hasbeen much discussion for and against asto the merits of these inventions andmany doubts have been expressed as totheir usefulness. It seems to have beenproven, however, that these inventionspossess merit and do increase the cir-culation; that when placed upon a sys-tem possessing a sluggish circulation,they greatly ben
Mechanical Contracting & Plumbing January-December 1909 . ries both the supply and return wa-ter, in the same direction. During the past five years various appliances havebeen placed upon the market for thepurpose of creating a pressure uponhouse heating hot water jobs. There hasbeen much discussion for and against asto the merits of these inventions andmany doubts have been expressed as totheir usefulness. It seems to have beenproven, however, that these inventionspossess merit and do increase the cir-culation; that when placed upon a sys-tem possessing a sluggish circulation,they greatly benefit that job, and thatby using these appliances we can de-crease both the size of the piping andthe amount of radiation. Central Station Heating. Greatly improved methods are now inuse for heating many buildings from acentral station, and central station heat-ing by hot water is a permanent practiceof to-day. A great many large jobs ofthis nature are located in various partsof the United States. J. C. Eaton will build a .$ resi-dence at I 6
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