GB2172989A - Wood burning stove - Google Patents

Wood burning stove Download PDF

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Publication number
GB2172989A
GB2172989A GB08604718A GB8604718A GB2172989A GB 2172989 A GB2172989 A GB 2172989A GB 08604718 A GB08604718 A GB 08604718A GB 8604718 A GB8604718 A GB 8604718A GB 2172989 A GB2172989 A GB 2172989A
Authority
GB
United Kingdom
Prior art keywords
primary
combustion chamber
door
primary combustion
wood burning
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.)
Withdrawn
Application number
GB08604718A
Other versions
GB8604718D0 (en
Inventor
Phillip John Cooper
James Maurice Simkin
John Owens
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.)
Glynwed Consumer and Building Products Ltd
Original Assignee
Glynwed Consumer and Building Products 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
Priority to GB858506014A priority Critical patent/GB8506014D0/en
Application filed by Glynwed Consumer and Building Products Ltd filed Critical Glynwed Consumer and Building Products Ltd
Priority to GB08604718A priority patent/GB2172989A/en
Publication of GB8604718D0 publication Critical patent/GB8604718D0/en
Publication of GB2172989A publication Critical patent/GB2172989A/en
Withdrawn legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24BDOMESTIC STOVES OR RANGES FOR SOLID FUELS; IMPLEMENTS FOR USE IN CONNECTION WITH STOVES OR RANGES
    • F24B5/00Combustion-air or flue-gas circulation in or around stoves or ranges
    • F24B5/02Combustion-air or flue-gas circulation in or around stoves or ranges in or around stoves
    • F24B5/04Combustion-air or flue-gas circulation in or around stoves or ranges in or around stoves the air or gas passing downwards through the bottom of the stove of fire grate
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24BDOMESTIC STOVES OR RANGES FOR SOLID FUELS; IMPLEMENTS FOR USE IN CONNECTION WITH STOVES OR RANGES
    • F24B5/00Combustion-air or flue-gas circulation in or around stoves or ranges
    • F24B5/02Combustion-air or flue-gas circulation in or around stoves or ranges in or around stoves
    • F24B5/021Combustion-air or flue-gas circulation in or around stoves or ranges in or around stoves combustion-air circulation
    • F24B5/026Supply of primary and secondary air for combustion

Abstract

A closed wood burning stove operating on the down-burning principle has primary and secondary combustion chambers (6, 7) connected by a throat (15) adjacent the bottom of the rear of the primary chamber (6) through which products of combustion pass from the primary to the secondary chamber (7), the secondary chamber enlarging upwardly from the throat and discharge therefrom preferably being restricted, and primary and secondary air inlet tubes (22, 25) spaced above a grate (8) supply, when the stove is in use, preheated air respectively to a central part of a fire burning in the primary chamber and also adjacent to the throat to promote burning of products of combustion passing through the throat. The throat helps to reduce temperature losses from the primary chamber and the preheated air supplies promote burning in the two chambers such that particulate emission from the stove is reduced. <IMAGE>

Description

SPECIFICATION Wood burning stove This invention relates to a wood burning stove.
The invention seeks to reduce particulate emission from such a stove in use.
The present invention consists in a wood burning stove which is closed, operates on the down-burning principle and comprises a housing containing a primary combustion chamber and a secondary combustion chamber which enlarges upwardly from a throat adjacent the bottom of the rear of the primary combustion chamber at which products of combustion pass from the primary to the secondary combustion chamber, there being a grate for supporting wood to be burned in the primary combustion chamber, a primary air inlet tube which is spaced above the grate and arranged to provide a supply of pre-heated primary air to a central part of a fire burning in the primary combustion chamber in use of the stove, and a secondary air inlet tube which is spaced above the grate adjacent to the throat and arranged in use of the stove to provide a supply of pre-heated secondary air to promote burning of the products of combustion passing to the throat.
The restricted outlet for the products of combustion from the primary combustion chamber provided by the throat helps to reduce temperature losses in that chamber. The combined effect of this, the preheated primary supply of air to the fire and effective secondary burning resulting from the supply of preheated secondary air adjacent to the throat is to enable a high operating temperature to be achieved and maintained even at low burning rates, which results in substantially complete burning being achieved. The hydro-carbon content of the products of combustion leaving the stove is consequently considerably reduced. Wood burning in the primary combustion chamber burns cleanly and particulate emission from the stove is substantially reduced.
A firebrick lining is preferably provided in the primary and secondary combustion chambers.
At the top of the secondary combustion chamber a baffle or deflector may be provided which directs the products of combustion to pass forwardly over the top of the primary combustion chamber before they pass out of the stove. Thus the passage of the hot products through the secondary combustion chamber and over the primary combustion chamber enhances the thermal performance of the stove. A flue by which the products of combustion leave the stove may be restricted.
The air providing the primary and secondary supplies may be pre-heated simply by passing along parts of the tubes exposed to the fire before it is discharged at outlets of the tubes.
This means that when the fire is first lit the air supplies will be cold, but the exposed parts of the tubes quickly become heated as the fire becomes established and so preheated air will soon be discharged from the tubes.
Preferably the primary and secondary air is supplied to small localised areas centrally of the width of the primary combustion chamber.
Air outlets of the tubes may be provided by a series of ports in each of the tubes, preferably rearwardly directed and disposed so as to discourage entry of ash into them. Having the air tubes spaced above the grate normally ensures that they are not covered by ash.
The supplies of air provided by the primary and secondary air inlet tubes may be fixed.
Additional, adjustable, primary air may be admitted to the primary combustion chamber. In a preferred embodiment of the invention in which the stove has a glazed door at the front of the primary combustion chamber, an adjustable air inlet is provided at the front of that chamber by way of which additional primary air is admitted to encourage burning of the fire at the front of the chamber. This helps to keep the temperature of the glass in the door high enough to prevent or remove deposits of distillates on the glass. It also produces an attractive looking fire at all burning rates, a feature which is not normal with known fires operating on the down-burning principle. Burning rates of the fire are varied by adjustment of the air inlet.
A problem with known wood burning stoves having a door, is that when a fire is burning in the stove and the door is opened, for example to add wood to the fire, smoke may pass out through the door into the room and flames too may extend through the open doorway. To avoid this problem it is proposed that a stove in accordance with the present invention which has a door, has a flue gas bypass by way of which when the door is opened smoke, and flames, can pass from the primary combustion chamber to a flue of the stove, instead of passing out through the door.
The grate may be a perforate plate or plates through which ash passes out of the combustion chamber. Ash will gather on the plate or plates and restrict downward radiation of heat by way of the grate. The plate or plates may be arranged to be agitated to encourage ash to pass out through the perforations. The grate may take other suitable forms.
An embodiment of the invention will now be described by way of example with reference to the accompanying drawings in which, Figure 1 is a partly sectioned front view of a wood burning stove in accordance with the present invention, Figure 2 is a vertical section on line 2-2 of Figure 1, and Figure 3 is an enlarged fragmentary horizon tal section through part of a front glazed door of the stove.
The stove is closed and provides controlled slow burning combustion. It comprises a housing 1 constructed principally from cast metal components and having a glazed door 2 at the front by way of which wood is loaded into the stove for burning and through which the fire can be seen. Within the housing 1 is a firebox 3 having back and side walls of firebrick. A horizontally extending metal support rail 4 supports a firebrick partition 5 which divides the interior of the firebox 3 transversely into a main, primary combustion chamber 6 to which the glazed door 2 gives access, and behind the primary combustion chamber a secondary combustion chamber 7.
A grate 8, on which logs and other wood to be burned are supported in the primary combustion chamber 6, is formed by two mating metal plates 9, 10 perforated by round holes and extends across the bottom of the firebox 3 above an ashpit 11. The grate 8 is inclined downwards rearwardly. An ashpan 12 is supported in the ashpit 11 on upstanding parallel fins 13 to collect ash which falls through the grate 8. The fins 13 extend from front to back of the ashpit 11 and are tapered downwards towards the back of the ashpit so that the ashpan 12 is tilted downwards towards the back of the ashpit at a similar angle to the grate 8. A separate, hinged, ashpit door 14 below the glazed door 2 gives access to the ashpit 11 for removal of the ashpan for emptying ash collected in it.There are air holes 14' in the ashpit door 14 for air to enter into the ashpit and pass to the primary combustion chamber 6 by way of the grate 8 and into the secondary combustion chamber 7.
The secondary combustion chamber 7 has adjacent to, and disposed centrally of, the bottom of the rear of the primary combustion chamber 6 a throat 15 at which the two chambers communicate. The throat 15 and the support rail 4 supporting the firebrick partition 5 are spaced above the grate 8. Directly below the throat 15 behind the grate is an opening 16, Figure 2, for free access of ash into the ashpit 11 and for air from the ashpit to pass to the secondary combustion chamber. Above the throat the secondary combustion chamber 7 is formed as a laterally and upwardly flaring flueway 17. At the wider top end of the flueway 17 a forwardly and upwardly inclined firebrick baffle 18 projects over, and is spaced above, a similarly inclined rear part 19' of a composite metal top panel 19 of the firebox 3.An upwardly and rearwardly inclined restrictor plate 20 mounted on the top panel 19 in front of the baffle 18 restricts the discharge area of the flueway 17.
In the top of the housing 1, above the baffle 18, is a flue outlet 21, which may provide restricted draught if required. The restrictor plate 20 directs flow towards the flue outlet.
Spaced above the grate 8 in the primary combustion chamber 6 is a continuously open primary air inlet tube 22 which is of circular cross-section and is nonadjustable. This primary air inlet tube extends horizontally transversely of the primary combustion chamber 6, just rearwardly of mid-way between the front and rear of that chamber. Along a short length of the primary air inlet tube 22 at the centre of the primary combustion chamber a row of ports 23 is drilled horizontally, or substantially horizontally, into the tube by way of which primary air is discharged from the rear of the tube opposite the throat 15 of the secondary combustion chamber. The primary air inlet tube 22 opens to the exterior of the side of the housing, behind a shield 24, Figure 1, to receive air from outside the stove.It discharges primary air into the centre of a fire burning in the primary combustion chamber in use of the stove.
A secondary air inlet tube 25, of circular crosssection and also non-adjustable, extends horizontally, parallel to the primary air inlet tube 22, immediately below the support rail 4 supporting the firebrick 5 adjacent the entrance to the throat 15. A row of ports 26 is drilled horizontally into the rear of the secondary air inlet tube 25 along a short length of a central part of the tube, by way of which ports secondary air is discharged from the rear of the tube into the throat. Again this secondary air inlet tube 25 opens to the exterior of the side of the housing, behind the shield 24, to receive air from outside the stove. The primary air inlet tube 22 is spaced higher above the grate 8 than the secondary air inlet tube 25.
The levels at which the air inlet tubes 22, 25 are positioned are such that the tubes are normally above the level to which ash will collect on the grate when the stove is in use, so that the ports 23, 26 will not be closed off or restricted by ash and satisfactory supplies of primary and secondary air can be maintained. At least the ports 23 in the primary air inlet tube 22 may be slightly downwardly directed to discourage ash and other matter from entering into them. The opening 16 behind the grate directly below the throat ensures that ash will fall through to the ashpit which might otherwise block or restrict the entrance to the throat 15.
The glazed door 2 is a double glazed assembly which comprises a fixed outer glass panel 27 sealed in the door and an inner glass panel 28 mounted in spaced parallel relationship to the outer glass panel in an inner frame 29 of the door, Figures 2 and 3. An adjustable air inlet 30, Figure 2, at the bottom of the door allows an adjustable additional supply of primary air to enter and pass upwards through the space between the outer and inner glass panels 27, 28 of the door. There is an opening 31 between the top of the inner panel 28 and the inner frame 29 through which the primary air passes from the space in the door into the front of the primary combustion chamber over front firebars 32 across the lower part of the front of the chamber.A baffle 33 along the top of the inner frame 29 directs the primary air downwardly into the primary combustion chamber as it passes through the opening 31. The air inlet 30 is adjusted in known manner by means of a manually rotatable control 30', Figure 1.
In a front part 19" of the top panel 19 of the firebox 3 extending over the primary combustion chamber is a flue gas bypass 34, Figure 2, which opens forwardly and upwardly into the housing 1 above the firebox to communicate with the flue outlet 21. A bottomhinged closure plate 35 pivoted on the front part 19" in front of the flue gas bypass 34 closes off the flue gas bypass when the door 2 is shut. An operating rod 36 connects the closure plate 35 to the door and as the door is opened the operating rod causes the closure plate 35 to pivot forwards and open the flue gas bypass, so that smoke, and flames, from a fire in the primary combustion chamber can pass through the flue gas bypass to the flue outlet 21, instead of out through the open front of the combustion chamber.
There is a flue cleaning opening 37 in the top of the housing 1 which is normally shut off by a lid 38 and cover plate 39.
Secondary air inlet holes 40, Figure 2, may be provided in the back of the housing 1 which open into the flueway 17 at the throat 15 to admit further air into the flueway. One or more combustion flash holes 41 may be provided in the firebrick partition 5 opposite the secondary air inlet holes 40 as a means of possibly igniting volatile matter in the secondary combustion chamber earlier than by way of the throat alone.
For use of the stove a wood fire is prepared and lit in the primary combustion chamber in the usual way. A fixed amount of primary air is supplied to the centre of the fire by the primary air inlet tube 22. An adjustable amount of primary air may in addition be supplied to the front of the fire by way of the adjustable air inlet 30. A fixed amount of secondary air is supplied to the bottom of the throat 15 by the secondary air inlet tube 25, and higher up the throat by the secondary air inlet holes 40, if provided. Air also reaches the primary and secondary combustion chambers by way of the ashpit. Operating on the downburning principle, products of combustion from the fire in the primary combustion chamber pass down the rear of that chamber and up through the throat and upwardly flaring flueway 17 of the secondary combustion chamber.The secondary air supplied to the throat by the secondary air inlet tube 24, and air inlet holes 40, promotes burning of the products of combustion in the secondary combustion chamber. The products of combustion leaving the flueway 17 are turned forwards over the firebox by the baffle 18 before being directed to the flue outlet 21 by the restrictor plate 20 to leave the stove.
Initially the air supplied from the primary and secondary air inlet tubes is cold but as the tubes are heated as the fire becomes established the air is preheated in the tubes before being discharged into the combustion chambers. Once the fire is established and the air inlet tubes have reached temperatures of the order of 600"C so that the pre-heated primary and secondary air issuing from the primary and secondary air inlet tubes is of the order of 550"C, and a maintained environmental temperature and heat in the firebox of that order is achieved, the smoke from the fire burns cleanly at all burning rates. Burning rates are increased and decreased as desired by adjustment of the adjustable air inlet 30.
Near complete burning of the products of combustion is achieved in the throat 15 by the introduction of the pre-heated secondary air. Particulate emission from the stove and pollution of the atmosphere are therefore minimized.
Frontal burning of the fire encouraged by the additional supply of primary air by way of the adjustable air inlet 30 keeps the inner glass panel 28 of the door at temperatures high enough to prevent or remove deposits of distillates on the glass.
The fixed amounts of primary and secondary air supplied by the air inlet tubes are sufficient to support a major percentage of the low burning rate of the fire, the remainder being provided by the additional primary air supplied by way of the adjustable air inlet, and the air passing through the air holes 14' in the ashpit door 14 and entering the primary and secondary combustion chambers from the ashpit 11. Further support is gained in the secondary combustion chamber, if desired, by the provision of the secondary air inlet holes 40 at the throat 15.
By virtue of the small area and localisation of pre-heated air supplied by the primary and secondary air inlet tubes, and the confined discharge of products of combustion through the throat and flueway of the secondary combustion chamber, which enables desirable high temperatures to be maintained in the primary combustion chamber, low emission factors are obtained even at very low burning rates.

Claims (19)

1. A wood burning stove which is closed, operates on the down-burning principle and comprises a housing containing a primary combustion chamber and a secondary combustion chamber which enlarges upwardly from a throat adjacent the bottom of the rear of the primary combustion chamber at which products of combustion pass from the primary to the secondary combustion chamber, there being a grate for supporting wood to be burned in the primary combustion chamber, a primary air inlet tube which is spaced above the grate and arranged to provide a supply of pre-heated primary air to a central part of a fire burning in the primary combustion chamber in use of the stove, and a secondary air inlet tube which is spaced above the grate adjacent to the throat and arranged in use of the stove to provide a supply of pre-heated secondary air to promote burning of the products of combustion passing to the throat.
2. A wood burning stove according to claim 1 wherein a firebrick partition separates the primary and secondary combustion chambers and the secondary air inlet tube is directly below the firebrick partition.
3. A wood burning stove according to claim 1 or claim 2 wherein the primary and secondary air inlet tubes have portions which when a fire is burning in the primary combustion chamber are normally exposed to the fire to be heated directly by the fire, the heated portions serving to heat air passing through the tubes thereby to provide the pre-heated supplies of primary and secondary air respectively to be discharged from the tubes.
4. A wood burning stove according to any preceding claim wherein the primary and secondary air is supplied to localised areas centrally of the width of the primary combustion chamber.
5. A wood burning stove according to any preceding claim wherein the primary and secondary air inlet tubes each have a series of outlet ports by way of which the air is discharged from the tubes.
6. A wood burning stove according to claim 5 wherein the outlet ports are rearwardly directed.
7. A wood burning stove according to any preceding claim wherein the primary and secondary air inlet tubes open to the exterior of the housing behind a shield to receive air from outside the stove.
8. A wood burning stove according to any preceding claim wherein adjustable air inlet means is provided whereby an additional, adjustable, supply of primary air may be admitted to the primary combustion chamber.
9. A wood burning stove according to claim 8 wherein the adjustable air inlet means is at the front of the primary combustion chamber thereby to encourage burning of the fire at the front of the primary combustion chamber in use of the stove.
10. A wood burning stove according to claim 9 wherein a glazed door is provided at the front of the primary combustion chamber comprising inner and outer glass panels between which an air space is defined, the adjustable air inlet means admitting the additional supply of primary air to the air space at a lower part of the door, and there being an outlet for the air to pass out of the air space into the primary combustion chamber at an upper part of the door.
11. A wood burning stove according to any of claims 1 to 9 having a door at the front of the primary combustion chamber and a flue gas bypass at the upper part of the primary combustion chamber providing communication between the chamber and a flue of the stove, the flue gas bypass being arranged such that when the door is opened whilst a fire is burning in the primary combustion chamber smoke, and flames, can pass from the primary combustion chamber to the flue through the flue gas bypass instead of passing out of the stove through the open door.
12. A wood burning stove according to claim 10 wherein a flue gas bypass is provided at the upper part of the primary combustion chamber which provides communication between the chamber and a flue of the stove, and is arranged such that when the door is opened whilst a fire is burning in the primary combustion chamber smoke, and flames, can pass from the primary combustion chamber to the flue through the flue gas bypass instead of passing out of the stove through the open door.
13. A wood burning stove according to claim 11 or claim 12 wherein the flue gas bypass has closure means operably connected to the door such that when the door is closed the closure means closes the flue gas bypass, thereby closing communication between the primary combustion chamber and the flue, and when the door is opened the closure means is operated to open the flue gas bypass.
14. A wood burning stove according to any preceding claim wherein air inlet means is provided whereby additional secondary air is admitted to the throat.
15. A wood burning stove according to any preceding claim wherein a baffle or deflector is provided at the top of the secondary combustion chamber by which products of combustion passing up through the secondary combustion chamber are directed forwards over the primary combustion chamber.
16. A wood burning stove according to any preceding claim wherein there is a restrictor at the top of the secondary combustion chamber which restricts discharge of products of combustion from the chamber.
17. A wood burning stove according to any preceding claim wherein the grate comprises at least one perforate plate.
18. A wood burning stove according to any preceding claim wherein the grate is downwardly inclined towards the throat.
19. A wood burning stove substantially as described herein with reference to and as illustrated by the accompanying drawings.
GB08604718A 1985-03-08 1986-02-26 Wood burning stove Withdrawn GB2172989A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB858506014A GB8506014D0 (en) 1985-03-08 1985-03-08 Wood burning stove
GB08604718A GB2172989A (en) 1985-03-08 1986-02-26 Wood burning stove

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08604718A GB2172989A (en) 1985-03-08 1986-02-26 Wood burning stove

Publications (2)

Publication Number Publication Date
GB8604718D0 GB8604718D0 (en) 1986-04-03
GB2172989A true GB2172989A (en) 1986-10-01

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ID=26288937

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08604718A Withdrawn GB2172989A (en) 1985-03-08 1986-02-26 Wood burning stove

Country Status (1)

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GB (1) GB2172989A (en)

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2597196A1 (en) * 1986-04-09 1987-10-16 Vermont Castings SOLID FUEL STOVE, IN PARTICULAR A WOOD STOVE EQUIPPED WITH A DEVICE FOR CLEANING TRANSPARENT WALLS
FR2603366A1 (en) * 1986-09-02 1988-03-04 Gravier Denis Draught controller for fireplace - has sliding angled baffle with upper swivelling damper and actuating rod
FR2605385A1 (en) * 1986-10-20 1988-04-22 Genevee Freteval Sa Ash box for a closed stove (hearth)
FR2607227A1 (en) * 1986-11-21 1988-05-27 Lemer Joseph SOLID FUEL BOILER AND, PARTICULARLY, WOOD BOILER
FR2617270A1 (en) * 1987-06-23 1988-12-30 Supra Sa High-temperature closed hearth, the fire of which may or may not be visible, in particular of the fireplace-hearth or stove type
EP0464293A1 (en) * 1990-07-04 1992-01-08 LES CHEMINEES PHILIPPE Société Anonyme dite Closed fire, stove or fireplace insert
EP0480870A1 (en) * 1990-10-09 1992-04-15 Martin Frei Fireplace
WO1992014972A1 (en) * 1991-02-14 1992-09-03 Jonathan Greenall A solid fuel heating stove
DE9105438U1 (en) * 1991-05-02 1992-09-17 Superfire Produktions- Und Vertriebsgesellschaft Mbh, Salzburg, At
EP0542362A2 (en) * 1991-11-14 1993-05-19 V.F.M. Verkoop en Fabrikatie van Metaalprodukten Naamloze Vennootschap Device for regulating the flue draught strength in heating appliances
DE9304245U1 (en) * 1993-03-22 1993-09-23 Olsberg Hermann Everken Gmbh SOLID FUEL WITH AFTERBURN
US5542407A (en) * 1994-07-01 1996-08-06 Hon Industries Inc. Fireplace assembly
US5553604A (en) * 1994-04-14 1996-09-10 Frei; Martin Space heating system, heater, and combustion chamber
US5657742A (en) * 1993-03-05 1997-08-19 Greenall; Jonathan Solid fuel heating device
FR2762897A1 (en) * 1997-05-02 1998-11-06 Cheminees Rene Brisach Enclosed fireplace with duct leading to flue
WO2000008390A1 (en) * 1998-08-04 2000-02-17 Dennis Jaasma Combustion system
US6332411B1 (en) 1999-01-14 2001-12-25 Olga Panteleimonovna Skrotskaya Furnace
WO2005100861A1 (en) * 2004-04-15 2005-10-27 Stephen Charles Brown Combustion apparatus for solid fuel
DE102005055369A1 (en) * 2005-11-17 2007-05-24 Manfred Schmid Furnace for producing heat has second radiant heat element at defined spacing from first one to create convection cavity between them
EP1455139A3 (en) * 2003-03-05 2007-06-27 Lohberger, Heiz + Kochgeräte-Technologie GmbH Window for a stove
GB2503462A (en) * 2012-06-27 2014-01-01 Hunter Stoves Ltd A solid fuel stove having secondary air outlet areas at the front and rear of the firebox
CN105546588A (en) * 2016-03-07 2016-05-04 四川眉能燃具有限公司 Efficient low-emission biomass furnace
CN105757722A (en) * 2016-03-07 2016-07-13 四川眉能燃具有限公司 Oxygen-enriched combustion method of biomass furnace

Cited By (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2597196A1 (en) * 1986-04-09 1987-10-16 Vermont Castings SOLID FUEL STOVE, IN PARTICULAR A WOOD STOVE EQUIPPED WITH A DEVICE FOR CLEANING TRANSPARENT WALLS
BE1001313A3 (en) * 1986-04-09 1989-09-26 Vermont Castings Heater solid fuel.
FR2603366A1 (en) * 1986-09-02 1988-03-04 Gravier Denis Draught controller for fireplace - has sliding angled baffle with upper swivelling damper and actuating rod
FR2605385A1 (en) * 1986-10-20 1988-04-22 Genevee Freteval Sa Ash box for a closed stove (hearth)
FR2607227A1 (en) * 1986-11-21 1988-05-27 Lemer Joseph SOLID FUEL BOILER AND, PARTICULARLY, WOOD BOILER
EP0271392A1 (en) * 1986-11-21 1988-06-15 GEMINOX, Société Anonyme Boiler using solid fuel, particularly a boiler using wood
FR2617270A1 (en) * 1987-06-23 1988-12-30 Supra Sa High-temperature closed hearth, the fire of which may or may not be visible, in particular of the fireplace-hearth or stove type
EP0464293A1 (en) * 1990-07-04 1992-01-08 LES CHEMINEES PHILIPPE Société Anonyme dite Closed fire, stove or fireplace insert
FR2664366A1 (en) * 1990-07-04 1992-01-10 Philippe Cheminees FIREPLACE FIREPLACE, STOVE OR INSERT OF CHIMNEY.
EP0480870A1 (en) * 1990-10-09 1992-04-15 Martin Frei Fireplace
US5469836A (en) * 1991-02-14 1995-11-28 Greenall; Jonathan Solid fuel heating appliance
WO1992014972A1 (en) * 1991-02-14 1992-09-03 Jonathan Greenall A solid fuel heating stove
DE9105438U1 (en) * 1991-05-02 1992-09-17 Superfire Produktions- Und Vertriebsgesellschaft Mbh, Salzburg, At
EP0542362A2 (en) * 1991-11-14 1993-05-19 V.F.M. Verkoop en Fabrikatie van Metaalprodukten Naamloze Vennootschap Device for regulating the flue draught strength in heating appliances
EP0542362A3 (en) * 1991-11-14 1993-08-18 V.F.M. Verkoop En Fabrikatie Van Metaalprodukten Naamloze Vennootschap Device for regulating the flue draught strength in heating appliances
BE1006319A3 (en) * 1991-11-14 1994-07-19 Vfm Verkoop Fab Metaalprod Device for regulating the chimney power in heating equipment.
US5657742A (en) * 1993-03-05 1997-08-19 Greenall; Jonathan Solid fuel heating device
DE9304245U1 (en) * 1993-03-22 1993-09-23 Olsberg Hermann Everken Gmbh SOLID FUEL WITH AFTERBURN
US5553604A (en) * 1994-04-14 1996-09-10 Frei; Martin Space heating system, heater, and combustion chamber
US5542407A (en) * 1994-07-01 1996-08-06 Hon Industries Inc. Fireplace assembly
FR2762897A1 (en) * 1997-05-02 1998-11-06 Cheminees Rene Brisach Enclosed fireplace with duct leading to flue
WO2000008390A1 (en) * 1998-08-04 2000-02-17 Dennis Jaasma Combustion system
US6067979A (en) * 1998-08-04 2000-05-30 Dennis Jaasma Combustion system
US6332411B1 (en) 1999-01-14 2001-12-25 Olga Panteleimonovna Skrotskaya Furnace
EP1455139A3 (en) * 2003-03-05 2007-06-27 Lohberger, Heiz + Kochgeräte-Technologie GmbH Window for a stove
WO2005100861A1 (en) * 2004-04-15 2005-10-27 Stephen Charles Brown Combustion apparatus for solid fuel
GB2429520A (en) * 2004-04-15 2007-02-28 Stephen Charles Brown Combustion apparatus for solid fuel
GB2429520B (en) * 2004-04-15 2009-03-04 Stephen Charles Brown Combustion apparatus for solid fuel
US8464704B2 (en) * 2004-04-15 2013-06-18 Stephen Charles Brown Combustion apparatus for solid fuel
DE102005055369A1 (en) * 2005-11-17 2007-05-24 Manfred Schmid Furnace for producing heat has second radiant heat element at defined spacing from first one to create convection cavity between them
GB2503462A (en) * 2012-06-27 2014-01-01 Hunter Stoves Ltd A solid fuel stove having secondary air outlet areas at the front and rear of the firebox
GB2503462B (en) * 2012-06-27 2016-10-12 Hunter Stoves Ltd Stove with additional air flow
CN105546588A (en) * 2016-03-07 2016-05-04 四川眉能燃具有限公司 Efficient low-emission biomass furnace
CN105757722A (en) * 2016-03-07 2016-07-13 四川眉能燃具有限公司 Oxygen-enriched combustion method of biomass furnace
CN105757722B (en) * 2016-03-07 2018-05-15 四川眉能燃具有限公司 A kind of oxygen-enriched combusting method of biomass stove

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