EP1054216B1 - Heat storing fireplace - Google Patents

Heat storing fireplace Download PDF

Info

Publication number
EP1054216B1
EP1054216B1 EP00660095A EP00660095A EP1054216B1 EP 1054216 B1 EP1054216 B1 EP 1054216B1 EP 00660095 A EP00660095 A EP 00660095A EP 00660095 A EP00660095 A EP 00660095A EP 1054216 B1 EP1054216 B1 EP 1054216B1
Authority
EP
European Patent Office
Prior art keywords
fireplace
supporting structure
inner part
firebox
grate
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.)
Expired - Lifetime
Application number
EP00660095A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1054216A3 (en
EP1054216A2 (en
Inventor
Juhani Lehikoinen
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.)
Nunnanlahden Uuni Oy
Original Assignee
Nunnanlahden Uuni Oy
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 Nunnanlahden Uuni Oy filed Critical Nunnanlahden Uuni Oy
Publication of EP1054216A2 publication Critical patent/EP1054216A2/en
Publication of EP1054216A3 publication Critical patent/EP1054216A3/en
Application granted granted Critical
Publication of EP1054216B1 publication Critical patent/EP1054216B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24B—DOMESTIC STOVES OR RANGES FOR SOLID FUELS; IMPLEMENTS FOR USE IN CONNECTION WITH STOVES OR RANGES
    • F24B1/00—Stoves or ranges
    • F24B1/18—Stoves with open fires, e.g. fireplaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24B—DOMESTIC STOVES OR RANGES FOR SOLID FUELS; IMPLEMENTS FOR USE IN CONNECTION WITH STOVES OR RANGES
    • F24B1/00—Stoves or ranges
    • F24B1/18—Stoves with open fires, e.g. fireplaces
    • F24B1/191—Component parts; Accessories

Definitions

  • the present invention relates to a heat-storing fireplace as defined in the preamble of claim 1 being represented by US-A-2926517 .
  • the above-mentioned need for maintenance means that at least some of the structural materials, elements or stones of the firebox need to be replaced with new ones.
  • in order to replace a part of the heat storing material of the firebox it is necessary to dismantle the entire inner part of the fireplace from the top down to the parts to be replaced, and in some cases even the shell has to be partially dismantled.
  • Elements or stones attached to each other during installation of the fireplace are often damaged during dismantling when being extricated from each other, even if they are flawless and of first-class quality.
  • damaged firebox stones are renewed, it is generally necessary to replace many other stones as well, the number of which may be multiple times larger than that of stones originally in need of replacement.
  • the object of the invention is to eliminate the problems referred to above.
  • a specific object of the invention is to disclose a new type of structure for use in heat-storing fireplaces which will make it possible to carry out maintenance operations on the firebox structures without touching the rest of the inner part of the fireplace.
  • a heat-storing fireplace comprises an inner part and a shell surrounding the inner part.
  • the shell surrounds the inner part at least on all four sides and above.
  • the inner part comprises a grate, a firebox with a back wall and sidewalls and above the firebox an uptake for passing the combustion gases from the fireplace into a chimney flue.
  • the uptake may provide a passage into the chimney flue directly from above the firebox, or the combustion gases may be passed down e.g. via side ducts between the inner part and the shell and only from the lower part of the fireplace into the chimney flue.
  • Other uptake structures for passing the combustion gases from the firebox into the chimney flue are also possible.
  • the fireplace comprises an inner part with a firebox and a shell separate from the firebox and surrounding it as defined by the characterising portion of claim1.
  • the basic idea of the invention is that, by using supporting structures of a certain kind in the inner part of the fireplace, certain wall structures of the firebox can be implemented in such a way that they do not bear the weight of any structures of the inner part above them, thus allowing them to be easily dismantled and replaced via a door without breaking up the inner part above them.
  • the supporting structure is preferably disposed above that portion of the inner part which is exposed to the greatest heat stress.
  • the position of the supporting structure may also be determined in other ways by estimating the need for replacement of the stones of the inner part; for example, the stones in the lower part of the firebox may be exposed to a large mechanical stress if the pieces of fuel wood are thrown in against the walls of the firebox.
  • the supporting structure preferably consists of a rigid, partly open or closed frame designed to carry the upper portion of the inner part upon it.
  • the supporting structure may also only consist of suitable beams or other supports which can be used to implement the desired function.
  • the supporting structure which may be made of steel, cast iron or some other suitable material, consists of a means extending in substantially only one horizontal plane. In this case, it may be mounted on the shell of the fireplace or on separate supports provided between the shell and the inner part.
  • the supporting structure preferably comprises supporting legs, so that the supporting structure rests on a structure below the inner part elements intended to be replaceable.
  • the actual supporting structure when placed in the area of the upper part of the firebox, it may rest on its supporting legs in the area of the lower part of the firebox, e.g. on the level of the grate.
  • the heat-storing fireplace of the invention has significant advantages.
  • the supporting structure of the invention makes it possible to dismantle and replace the elements or stones in the firebox walls via the fireplace door without touching the rest of the inner part of the fireplace.
  • the structure of the invention reduces the time needed for the replacement of damage stones to a level as low as 10% and the material needed in the replacement operation by as much as 80% as compared with prior art.
  • the heat-storing fireplace presented in the drawings which preferably in entirely made of soapstone elements, comprises an inner part 1, which comprises a fire grate 2 and an ash box below it. Above the fire grate there is a firebox 3 defined by a back wall 9 and side walls 10, the firebox opening out via a door in the front wall. The door is not shown in the figure. From the firebox upwards, the inner part 1 forms an uptake 4 which conducts the combustion gases from the firebox into a chimney flue.
  • the inner part 1 is surrounded by a soapstone shell 5 covering it on the front side, lateral sides, back side and at the top.
  • the uptake 4 bends out to the sides in the upper part of the inner part, forming side ducts extending downward between the inner part and the shell so that the side ducts meet in the lower part of the fireplace, behind the ash box, conducting the combustion gases from there into the chimney flue.
  • a rigid rectangular supporting structure 6 placed around the firebox walls, i.e. the side walls 10 and the back wall 9, in a horizontal plane. Extending downward from each of the four corners of the supporting structure are supporting legs 7, which are mounted in the inner part 1 at the level of the grate 2. The entire portion of the inner part 1 situated above the supporting structure 6 is built on and supported by the supporting structure 6 so that its weight is transmitted via the supporting structure 6 and its supporting legs 7 to the grate level and to the portion of the inner part below it, as can be seen from Fig. 2.
  • the back wall 9 and side walls 10 of the firebox 3 can be built last after the rest of the inner part, in the space defined by the supporting structure 6 and the supporting legs 7, and similarly they can be separately dismantled and replaced if necessary without touching the rest of the inner part.
  • the supporting structure 6 with its supporting legs 7 has been formed from suitable profiled angle iron bar so that, as a whole, it forms in the firebox a boxlike structure in which the elements 8 forming the firebox can be easily set. It is even possible that the elements 8 need not be glued or otherwise attached to each other in any way; instead, they can be left completely loose as the angle iron bars forming the supporting structure 6 and supporting legs 7 provide sufficient sealing of the joints of the elements 8 and their corner areas.
  • the portions of the inner part that are exposed to the greatest heat stress or a desired area of the firebox walls defined in some other way can be implemented as a separate structure which does not bear the weight of the portion of the inner part above it.
  • this desired area of the firebox walls can be easily dismantled via the fireplace door when necessary and the elements in it can be replaced without touching the rest of the structure of the fireplace.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Baking, Grill, Roasting (AREA)
  • Inorganic Insulating Materials (AREA)
  • Resistance Heating (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Photoreceptors In Electrophotography (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
EP00660095A 1999-05-19 2000-05-19 Heat storing fireplace Expired - Lifetime EP1054216B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI991142 1999-05-19
FI991142A FI991142A0 (fi) 1999-05-19 1999-05-19 Varaava tulisija

Publications (3)

Publication Number Publication Date
EP1054216A2 EP1054216A2 (en) 2000-11-22
EP1054216A3 EP1054216A3 (en) 2005-06-01
EP1054216B1 true EP1054216B1 (en) 2007-10-03

Family

ID=8554693

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00660095A Expired - Lifetime EP1054216B1 (en) 1999-05-19 2000-05-19 Heat storing fireplace

Country Status (4)

Country Link
EP (1) EP1054216B1 (fi)
AT (1) ATE374909T1 (fi)
DE (1) DE60036574T2 (fi)
FI (1) FI991142A0 (fi)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2847336B1 (fr) 2002-11-20 2006-10-06 Alain Gourhel Cheminee a foyer ferme a accumulation de chaleur

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1021985A (en) * 1911-09-15 1912-04-02 Louis Jack Adjustable form for smoke-chamber construction for chimneys having open fireplaces.
US1878719A (en) * 1930-06-30 1932-09-20 Eric A Scott Fireplace construction
US2926517A (en) * 1956-12-10 1960-03-01 Robert J Simpson Chimney construction
FR2597957B1 (fr) * 1986-04-29 1989-07-13 Rochette Ateliers Foyer a elements demontables individuellement

Also Published As

Publication number Publication date
DE60036574T2 (de) 2008-07-03
EP1054216A3 (en) 2005-06-01
ATE374909T1 (de) 2007-10-15
DE60036574D1 (de) 2007-11-15
EP1054216A2 (en) 2000-11-22
FI991142A0 (fi) 1999-05-19

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