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Publication numberUS1065837 A
Publication typeGrant
Publication dateJun 24, 1913
Filing dateMay 29, 1912
Priority dateMay 29, 1912
Publication numberUS 1065837 A, US 1065837A, US-A-1065837, US1065837 A, US1065837A
InventorsGeorge Reichhard
Original AssigneeGeorge Reichhard
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Hot-water heater.
US 1065837 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)




Patented June 24, 1913.




To all whom it may concern:

Be it known that I, GEORGE REIGHHARD, a citizen of the United States, and a resident of the city of New York, borough of Manhattan, in the county and State of New York, have invented a new and Improved Hotater Heater, of which the following is a full, clear, and exact description.

The invention relates to hot water heaters,

such as are used in apartment houses, hotels and other places for supplying the difierent apartments or rooms with hot water.

The object of the invention is to provide a new and improved hot water heater provided with a preliminary hot water heater to insure quick heating of the water and a proper supply of hot water even in case a large amount of Water is used in a given time, and the waste gases of the hot water.

heater are utilized to heat the feed water thereof by the preliminary hot water heater, thus requiring comparatively little fuel for quickly heating the water to the desired. de


For the purpose mentioned use is made of a preliminary hot water heater having a shell and water-circulating means within the shell, the shell being interposed in the smoke flue ofthe ordinary hot water heater to cause the products of combustion of the ordinary hot water heater to, circulate through the shell with a view to heat the water passing through the said water-circulating means, the latter being connected at one end with a source of water supply and being connected at the other end with the inlet to the water compartment of the ordinary hot water heater.

A practical embodiment of the invention is represented in the accompanying drawings forming a part of-this specification, in

which similar characters of reference indicate corresponding parts in all the views. 7

Figure 1 is a front elevation of the hot water heater; Fi 2 is anenlarged sectional front elevation o the preliminary hot water heater; and Fig. 3 is a transverse section of the same on the line 3.3 of Fig. 2.

The shell A of the preliminary hot water heater is preferably in the formof a box and is provided at the bottom and top with smoke inlets and outlets 'B and C, connected with the sections Band D of the smoke flue of an ordinaryhot-water heater E of any approved construction. The hot water heater E is providedwith the usual water Specification of Letters Patent. Patented June 241:, 1913. Application filed May 29, 1912. Serial No. 700,374.

compartment, and a combustion chamber connected with the smoke flue section D so that the products of combustion arising from the burning fuel in the hot water heater E pass through the shell A. Within the shell A is arranged a horizontally-disposed bafiie' plate F secured atone end to a box G having a horizontal partition G dividing the box into a water inlet chamber G and a water outlet chamber G The box G closes o-neend of the'shell A and the battle plate F extends to within a distance of the other closed end of the shell A, and within the said shell A are arranged a series of U-shaped water-circulating pipes H,

each opening at one end into the water inlet chamber G and at the other end into the water outlet chamber G it being understood that the said pipes are secured at their ends to the inner side of the box G, as will be readily understood by reference to Fig. 2. The water inlet chamber G is .connected with a pipe I leading to a water main or other suitable source of water supply, and the water-outlet chamber G is connected by a pipe J with a water inlet pipe K leading to the water compartment of the boiler E. The pipe K is provided with a branch pipe K leading tothe bottom of a water reservoir L connected at its top by a pipe N with the discharge end of'the water compartment of the heater E, and the water reservoir L is also rovided at the top with the usual outlet 0 or distributing the hot water to the dilferent rooms in the building in which the water heater is used. I

' lVhen the water heater is in use then water from the water main or other source of water-supply passes by way of the pipe I into the water inlet chamber G and from the latter the water passes through the circulating pipes H heated by the products of combustion circulating through the shell A on their way from the combustion chamber of the hot water heaterE tothe smoke stack, as previously explained, and the heated water passes from the pipes H into the water outletchamber G and is conducted by way of the pipes J and K into the water compartmentof the hot water heater E, in which the water is heated to the desired egree to vbe finally discharged into the water reservoir L by way-of the pipe N for distribution to. the various rooms by way of the pipe 0.

From the foregoing it will be seen that the water from the street main or other source of supply receives 'a preliminary heating in the preliminary heater prior to the water passing into the hot Water heater E, and consequently it takes but a comparatively short time to heat the water to the desired degree even if a large amount of Water is withdrawn at one time from the rQSQIVOiI L'." It will also be noticed that the products ofcombustion or waste gases from the hotwater heater E are utilized to heat the water circulating through the circulating pipes H, and hence less fuel is required in the hot water heater E to quickly heat the water to the desired degree in the manner set forth.

The front A and the rear A of the shell. Aare preferably hinged to the bottom of the shell to permit of conveniently opening the said front and rear for cleaning the preliminary hot water heater of any soot that may accumulate therein. Suitable fastening devices P are employed for locking the front A and the rear A to the top of the shell as indicated in Figs. 1 and 3/ The shell A is preferably supported by a bracket Q attached to the hot water heater E and also by the pipe I connected with the box G. Having thus described my invention, I claim as new and desire to secure by Letters Patent:

1. In a hot water heating system, the combination With a main water heater having a combustion chamber, a smoke flue and a water compartment having an inlet and outlet,

and a water reservoir with which the inlet and outlet of the said water compartment are connected, of a preliminary water heater interposed in the smoke flue for the passage of the products of combustion through the same, an inlet pipe leading from a water main to the preliminary heater, and a discharge pipe leading from the preliminary heater and connected with the inlet of the water compartment of the main Water heater between the said heater and reservoir.

2. In a hot Water heating system, the com bination of an ordinary water heater having a combustion chamber, a water compartment provided with an inlet and an outlet, and a smoke fiue for carrying oif the products of combustion from the said combustion chamberfa water reservoir connected at one end with the inlet and at the other end with the outlet of thevwatercompartment, the reservoir having an outlet for carrying off the hot Water, and a preliminary water heater having ashell and water-circulating means within the said shell, the said shell being interposed inthe said smoke flue for 'thepassage of the products of combustion

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2634958 *Dec 3, 1948Apr 14, 1953Modine Mfg CoHeat exchanger
US3024773 *Apr 8, 1960Mar 13, 1962Yasuhito YamaokaCooling system for smaller internal combustion engines
US4043014 *Nov 11, 1975Aug 23, 1977Wilson John CMethod of making a waste flue heat recovery device
US4167212 *Jun 30, 1977Sep 11, 1979Midland-Ross CorporationDevice for preheating air used in combustion
US4351276 *Mar 9, 1981Sep 28, 1982Robert KremerHeat recovery device for boilers
US4702226 *Aug 8, 1986Oct 27, 1987Shelley Delwyn JHot water tank water preheater
U.S. Classification122/421, 126/362.1, 122/15.1, 122/20.00B
Cooperative ClassificationF28D7/06, F28D21/0007
European ClassificationF28D21/00A4B4, F28D7/06