CA2590905A1 - Improved water heater flue system - Google Patents

Improved water heater flue system Download PDF

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Publication number
CA2590905A1
CA2590905A1 CA002590905A CA2590905A CA2590905A1 CA 2590905 A1 CA2590905 A1 CA 2590905A1 CA 002590905 A CA002590905 A CA 002590905A CA 2590905 A CA2590905 A CA 2590905A CA 2590905 A1 CA2590905 A1 CA 2590905A1
Authority
CA
Canada
Prior art keywords
flue
water heater
flue tube
tube
shaped fins
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CA002590905A
Other languages
French (fr)
Other versions
CA2590905C (en
Inventor
Dennis R. Hughes
Marc W. Akkala
Kevin M. Field
Robert F. Poehlman
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AOS Holding Co
Original Assignee
Individual
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
Priority claimed from US09/561,126 external-priority patent/US6286465B1/en
Priority claimed from US09/795,284 external-priority patent/US6422179B2/en
Application filed by Individual filed Critical Individual
Publication of CA2590905A1 publication Critical patent/CA2590905A1/en
Application granted granted Critical
Publication of CA2590905C publication Critical patent/CA2590905C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

A water heater includes a water tank, a combustion chamber below the tank and communicating with the flue tube, and a flue system. The flue system includes a flue tube, and V-shaped fins that are metallurgically bonded to the flue tube wall to divide the flue tube into four flue chambers extending substantially parallel to the longitudinal axis of the flue tube. The V-shaped fins include radially extending apertures that reduce the thermal expansion of the V-shaped fins with respect to the flue tube to reduce stress at the joint between the fins and the flue tube. The flue system also includes a removable baffle hanging in each flue chamber. The baffles include adjustable turbulation surfaces to control the quality of combustion in the water heater.
CA002590905A 2000-04-28 2001-04-27 Improved water heater flue system Expired - Fee Related CA2590905C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US09/561,126 2000-04-28
US09/561,126 US6286465B1 (en) 2000-04-28 2000-04-28 Water heater flue system
US09/795,284 US6422179B2 (en) 2000-04-28 2001-02-28 Water heater flue system
US09/795,284 2001-02-28
CA002345487A CA2345487C (en) 2000-04-28 2001-04-27 Improved water heater flue system

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002345487A Division CA2345487C (en) 2000-04-28 2001-04-27 Improved water heater flue system

Publications (2)

Publication Number Publication Date
CA2590905A1 true CA2590905A1 (en) 2001-10-28
CA2590905C CA2590905C (en) 2008-12-09

Family

ID=38469073

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002590905A Expired - Fee Related CA2590905C (en) 2000-04-28 2001-04-27 Improved water heater flue system

Country Status (1)

Country Link
CA (1) CA2590905C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109668135B (en) * 2018-11-16 2020-03-06 龙正环保股份有限公司 Water coal slurry combustion steam boiler

Also Published As

Publication number Publication date
CA2590905C (en) 2008-12-09

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20180427