Gas boiler

A gas boiler comprising:

• a water tank having a rectangularly-shaped section, and including an upper casing having an opened lower portion and a lower casing having an opened upper portion, said upper casing including a recess formed in one side of said upper casing, and a first flange formed along a lower marginal periphery of said upper casing for coupling said upper casing to said lower casing, and said lower casing including a second flange formed along an upper marginal periphery of said lower casing for coupling said upper casing to said lower casing, and a third flange horizontally extending from said second flange, whereby said first flange and said second flange are coupled together, and said third flange is coupled to said three-way valve;
• a heat exchanger for heating a first water and a second water, said exchanger including a heating water tank for retaining the second water, a combustion chamber and a gas burner for heating the second water retained within said heating water tank, the first water being supplied from a first water supply source outside of said gas boiler to said exchanger and the second water being supplied from said water tank;
• a three-way valve connected to said heat exchanger;
• a circulation pump mounted to one side of said three-way valve in opposition to the mounting position of said water tank and in opposition to said three-way valve, said circulation pump including a circulation pump frame having a plurality of connecting holes for coupling said circulating pump to said three-way valve, a heating water inlet hole, a pump entrance and a pump drain pipe, said circulation pump providing the heated first and second water with pressure so as to flow;
• first guide means for guiding the first water to said heat exchanger and supplying the first water heated within said heat exchanger to a user when an operational mode of said gas boiler is a heating mode, said first guide means including a water supply pipe for supplying the first water from a first water supply source outside of said gas boiler to said heat exchanger, and a hot water supply pipe for supplying the first water heated within said heat exchanger, said water supply pipe having a water valve for controlling the quality of the first water supplied into said heat exchanger;
• second guide means for guiding the heated second water, said second guide means being communicate with said three-way valve and said heat exchanger when the operational mode of said gas boiler is the hot water mode, so as to supply the heated second water to the user, and for directing the heated second water to a heating place by the operation of said three-way valve when the operational mode of said gas boiler is a heating mode, said second guide means including a second communicating pipe, a first heating water supply pipe, a second heating water supply pipe and a heating water discharge pipe, whereby said three-way valve shuts off said heating water discharge pipe to discharge the heated second water into said circulation pump via said second communicating pipe when the operational mode of said gas boiler is the hot water mode, and shuts off said second communicating pipe to discharge the heated second water to the heating place via said heating water discharge pipe when the operational mode of said gas boiler is the heating mode;
• said three-way valve directing the heated second water to the user through the circulation pump and the second guide means when said gas boiler is in the hot water mode and for directing the heated second water to the heating place through the circulation pump and the second guide means when said gas boiler is in the heating mode, said three-way valve mounted to one side of said water tank, said three-way valve including a three-way valve frame having a plurality of coupling holes for connecting said three-way valve with said water tank and said circulation pump, a heating water supply hole, a ball space, a spherical ball placed within said ball space and a heating water discharge hole connected to said heating water discharge pipe;
• a heating water return pipe for guiding the second water returning from the heating place into said water tank;
• a first communicating pipe for guiding the second water which has been guided into said water tank into said circulation pump, said first communicating pipe extending from one side of said water tank into said circulation pump by passing through said three-way valve;
• and
• a printed circuit board box having a printed circuit board therein for controlling the operation of said gas boiler.

A gas boiler comprising:

• a water tank having a rectangularly-shaped section, and including an upper casing having an opened lower portion and a lower casing having an opened upper portion, said upper casing including a recess formed in one side of said upper casing, a first flange formed along a lower marginal periphery of said upper casing for coupling said upper casing to said lower casing, and said lower casing including a second flange formed along an upper marginal periphery of said lower casing for coupling said upper casing to said lower casing and a third flange optionally extending from said second flange, whereby said first flange and said second flange are coupled altogether, and said third flange is coupled to said three-way valve;
• a heat exchanger for heating a first water and a second water, said heat exchanger including a heating water tank for retaining the second water, a combustion chamber and a gas burner for heating the second water retaining within said heating water tank, the first water being supplied from a first water supply source outside of said gas boiler to said exchanger and the second water being supplied from said water tank;
• a three-way valve connected to said heat exchanger;
• a circulation pump mounted to one side of said three-way valve in opposition to the mounting position of said water tank and in opposition to said three-way valve, said circulation pump including a circulation pump frame having a plurality of connecting holes for coupling said circulation pump to said three-way valve, a heating water inlet hole, a pump entrance and a pump drain pipe, said circulation pump providing the heated first and second water with pressure so as to flow;
• first guide means for guiding the first water to said heat exchanger and supplying the first water heated within said heat exchanger to a user, said first guide means including a water supply pipe for supplying the first water from a first water supply source outside of said gas boiler to said heat exchanger, and a hot water supply pipe for supplying the first water heated within said heat exchanger, said water supply pipe having a water valve for controlling the quantity of the first water supplied into said heat exchanger, when an operational mode of said gas boiler is a heating mode;
• second guide means for guiding the heated second water, said second guide means being communicated with said three-way valve and said heat exchanger when the operational mode of said gas boiler is a hot water mode so as to supply the heated second water to the user, and for guiding the heated second water to a heating place when the operational mode of said gas boiler is the heating mode, said second guide means including a second communicating pipe, a first heating water supply pipe, a second heating water supply pipe and a heating water discharge pipe, said second communicating pipe fluid-communicating said three-way valve with said circulation pump, said first heating water supply pipe fluid-communicating with said heat exchanger, and said second heating water supply pipe fluid-communicating said heat exchanger with said three-way valve, whereby said three-way valve shut off said heating water discharge pipe to discharge the heated second water into said circulation pump via said second communicating pipe when the operational mode of said gas boiler is the hot water mode, and shuts off said second communicating pipe to discharge the heated second water to the heating place via said heating water discharge pipe when the operational mode of said gas boiler is the heating mode;
• said three-way valve directing the heated second water to the user through the circulation pump and the second guide means when said gas boiler is in the hot water mode and for directing the heated second water to the heating place through the circulation pump and the second guide means when said gas boiler is in the heating mode, said three-way valve mounted to one side of said water tank, said three-way valve including a three-way valve frame having a plurality of coupling holes for connecting said three-way valve with said water tank and said circulation pump, a heating water supply hole, a ball space, a spherical ball spaced within said ball space and a heating water discharge hole connected to said heating water discharge pipe a heating water return pipe for guiding the second water which returns from the heating place into said water tank;
• a first communicating pipe for guiding the second water directed into said water tank into said circulation pump, said first communicating pipe extends from one side of said water tank into said circulation pump by passing through said three-way valve;
• and
• a printed circuit board box having a printed circuit board therein for controlling the operation of said gas boiler,
• wherein said ball shuts off said heating water discharge hole to discharge the heated second water into said circulation pump via said second communicating pipe in accordance with a control signal from the printed circuit board when the operational mode of said gas boiler is the hot water mode, and shuts off said second communicating pipe to discharge the heated second water via said heating water discharge hole in accordance with the control signal from the printed circuit board.