NZ529300A - A storage water heater with reduced heat maintenance rate - Google Patents

A storage water heater with reduced heat maintenance rate

Info

Publication number
NZ529300A
NZ529300A NZ529300A NZ52930002A NZ529300A NZ 529300 A NZ529300 A NZ 529300A NZ 529300 A NZ529300 A NZ 529300A NZ 52930002 A NZ52930002 A NZ 52930002A NZ 529300 A NZ529300 A NZ 529300A
Authority
NZ
New Zealand
Prior art keywords
tank
flue
duct
alight
water heater
Prior art date
Application number
NZ529300A
Inventor
Jim Jensen
Original Assignee
Rheem Australia Pty Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rheem Australia Pty Ltd filed Critical Rheem Australia Pty Ltd
Publication of NZ529300A publication Critical patent/NZ529300A/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/18—Water-storage heaters
    • F24H1/20—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes
    • F24H1/205—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes with furnace tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)

Abstract

A gas-fuelled storage water heater intended to provide reduced gas consumption compared to generally similar conventional types, which has: an upright cylindrical storage tank that stores heated water and which has a tubular heat exchanger flue passing axially through the tank; the flue terminating closely above the top of the tank; a combustion chamber beneath the tank housing a main burner that heats water in the tank and a pilot burner which remains alight when the main burner is not alight; a duct communicating with the top of the flue; which includes a vertical leg with a surface that makes direct contact with an external surface of a vertical wall of the tank; the tank, flue and duct being enclosed by heat insulation; where the duct dimensions are chosen to satisfy the condition that, when the pilot flame alone is alight, an average buoyancy force exerted on gases in the flue substantially balances an average opposing buoyancy force exerted on gases in the vertical portion of the duct.
NZ529300A 2001-06-12 2002-06-04 A storage water heater with reduced heat maintenance rate NZ529300A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPR5586A AUPR558601A0 (en) 2001-06-12 2001-06-12 A storage water heater with reduced heat maintenance rate
PCT/AU2002/000718 WO2002101302A1 (en) 2001-06-12 2002-06-04 A storage water heater with reduced heat maintenance rate

Publications (1)

Publication Number Publication Date
NZ529300A true NZ529300A (en) 2006-03-31

Family

ID=3829560

Family Applications (1)

Application Number Title Priority Date Filing Date
NZ529300A NZ529300A (en) 2001-06-12 2002-06-04 A storage water heater with reduced heat maintenance rate

Country Status (4)

Country Link
CN (1) CN100362289C (en)
AU (1) AUPR558601A0 (en)
NZ (1) NZ529300A (en)
WO (1) WO2002101302A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NZ566630A (en) * 2005-09-16 2011-02-25 Dux Mfg Ltd A water heater where the flue and flue outlet pipe have a length relationship to control combustion of the pilot
AU2006292006B2 (en) * 2005-09-16 2010-09-23 Dux Manufacturing Limited A water heater and a method of operating same

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NZ218621A (en) * 1986-12-12 1990-03-27 Rheem Australia Pty Ltd Flue arrangement for flame heated liquid storage tank
FR2634006B1 (en) * 1988-07-05 1991-05-17 Chaffoteaux Et Maury IMPROVEMENTS ON APPARATUS FOR PRODUCING HOT WATER
AUPP616198A0 (en) * 1998-09-24 1998-10-15 Southcorp Australia Pty Ltd Natural draft water heater

Also Published As

Publication number Publication date
CN1509397A (en) 2004-06-30
WO2002101302A1 (en) 2002-12-19
AUPR558601A0 (en) 2001-07-12
CN100362289C (en) 2008-01-16

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Legal Events

Date Code Title Description
PSEA Patent sealed
RENW Renewal (renewal fees accepted)
RENW Renewal (renewal fees accepted)
RENW Renewal (renewal fees accepted)
RENW Renewal (renewal fees accepted)

Free format text: PATENT RENEWED FOR 1 YEAR UNTIL 04 JUN 2016 BY HALFORDS IP

Effective date: 20150526

ERR Error or correction

Free format text: THE AGENT HAS BEEN CORRECTED TO 1282969, HALFORDS IP, SUITE 4704, 24B MOOREFIELD RD, JOHNSONVILLE , WELLINGTON 6037, NZ; THE CONTACT HAS BEEN CORRECTED TO 1282969, HALFORDS IP, SUITE 4704, 24B MOOREFIELD RD, JOHNSONVILLE , WELLINGTON 6037, NZ

Effective date: 20150821

LAPS Patent lapsed