WO2000035405A1 - Electric sauna stove - Google Patents

Electric sauna stove Download PDF

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Publication number
WO2000035405A1
WO2000035405A1 PCT/FI1999/001022 FI9901022W WO0035405A1 WO 2000035405 A1 WO2000035405 A1 WO 2000035405A1 FI 9901022 W FI9901022 W FI 9901022W WO 0035405 A1 WO0035405 A1 WO 0035405A1
Authority
WO
WIPO (PCT)
Prior art keywords
stove
frame
stones
electric
sauna stove
Prior art date
Application number
PCT/FI1999/001022
Other languages
Finnish (fi)
French (fr)
Inventor
Eero Rintala
Vesa Rintala
Original Assignee
Sauna-Eurox 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 Sauna-Eurox Oy filed Critical Sauna-Eurox Oy
Priority to DE19983801T priority Critical patent/DE19983801T1/en
Priority to AU16628/00A priority patent/AU1662800A/en
Publication of WO2000035405A1 publication Critical patent/WO2000035405A1/en
Priority to SE0102060A priority patent/SE519937C2/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H33/00—Bathing devices for special therapeutic or hygienic purposes
    • A61H33/06—Artificial hot-air or cold-air baths; Steam or gas baths or douches, e.g. sauna or Finnish baths
    • A61H33/063—Heaters specifically designed therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H33/00—Bathing devices for special therapeutic or hygienic purposes
    • A61H33/06—Artificial hot-air or cold-air baths; Steam or gas baths or douches, e.g. sauna or Finnish baths
    • A61H33/063—Heaters specifically designed therefor
    • A61H33/065—Heaters specifically designed therefor with steam generators

Definitions

  • the invention relates to an electric sauna stove having an open- topped frame for stones comprising walls and a bottom and intended to be filled with stove stones, and at least one electric resistor arranged to be at least partly inside the frame for stones.
  • a conventional electric sauna stove has an electric resistor arranged in an open-topped stone compartment filled with stove stones.
  • the casing of the stove is arranged around the stone compartment.
  • the heat produced by this type of sauna stove is often too dry and various humidifying solutions have been developed to be arranged with the conventional electric sauna stove to increase humidity in the sauna.
  • the heat from the stove is mainly directed upwards through the open-topped stone compartment and consequently the bottom section of the sauna easily remains uncomfortably cool and the sitting platform must be made quite high.
  • the object of this invention is to provide an electric sauna stove without the above-mentioned drawbacks.
  • the electric sauna stove of the invention is characterized in that at least one wall of the frame for stones has an opening or openings so that when the electric sauna stove is used, heat is at least partly transferred through at least one opening and when water is thrown on the stove stones, at least a part of the water vapour escapes through at least one opening, thus allowing heat and water vapour into the sauna from the side of the sauna stove.
  • An essential idea of the invention is that the electric sauna stove has a frame for stones inside which the stove stones and at least one electric resistor are arranged.
  • a further essential idea is that at least one wall of the frame has openings so that when the sauna stove is used, heat is transferred to the sauna at least partly through the openings and when water is thrown on the stove stones, at least part of the water vapour escapes through the openings.
  • the idea in a preferred embodiment is that at least one wall of the frame for stones is made of a wire mesh.
  • the idea of another preferred embodiment is that the electric resistors are placed in one row.
  • the invention provides the advantage that the sauna stove produces a softer heat and water vapour also flows from the side of the sauna stove. Heat is also transferred from the side of the sauna stove to the sauna, whereby the sauna stove also heats the bottom section of the sauna and the sitting platform need not be made very high.
  • the sauna stove also heats the bottom section of the sauna and the sitting platform need not be made very high.
  • Figure 1 shows a schematic illustrating a front view of an electric sauna stove of the invention
  • Figure 2 shows a side view of the electric sauna stove of Figure 1 in partial cross-section.
  • Figure 1 shows an electric sauna stove 1 comprising a frame 2 for stones, inside which stove stones 3 are arranged. Further, an electric resistor is located at least partly inside the frame 2 for stones to warm up the sauna stove 1.
  • the electric sauna stove 1 also comprises control means 4 with which the electric sauna stove 1 is switched on and off and with which the temperature of the electric sauna stove 1 is adjusted in a manner known per se.
  • the control means 4 can reside in the electric sauna stove 1 as shown in Figure 1 or in a separate control section in a manner known per se.
  • At least one wall of the frame 2 for stones has one or more openings 5.
  • At least one opening 5 allows heat to pass to the sauna, and consequently the electric sauna stove warms up the sauna also through its sides more effectively than an electric sauna stove equipped with a solid casing.
  • the size of the openings 5 is smaller than that of the stove stones 3 to keep the stones 3 firmly inside the frame 2.
  • the shape of the openings 5 may vary as desired, they can be approximately square as shown in Figure 1 or long and narrow, for instance.
  • the proportion of the surface area of the openings 5 is preferably at least 30% of the surface area of one wall of the frame 2 to achieve efficient warming up of the sauna and softening of the heat.
  • at least one wall of the frame 2 is made of wire mesh by arranging metal wires 6 crosswise.
  • the thickness of the metal wires 6 can vary between 2 and 4 mm, for instance, and the distance between them between 10 to 30 mm making the proportion of the openings 5 of the surface area of the frame 2 considerable and allowing the heat to transfer extremely effectively sideways from the electric sauna stove 1 and allowing the water to be thrown on the stove stones 3 also from the side and allowing the water vapour also to escape to the sauna sideways through the wire mesh.
  • the frame 2 is substantially made entirely of metal wire 6, i.e. all walls and the bottom of the frame are made of wire mesh making the manufacture of the frame 2 simple and preventing the frame 2 from restricting the transfer of heat in any way to the sauna. If the frame 2 is substantially made entirely of metal wire 6, a support band 7 made of metal plate can be fixed to its upper part to increase the sturdiness of the frame 2.
  • a casing 8 can be arranged around the frame 2 for stones, comprising a right side casing 8a, a left side casing 8b and a back casing 8c, whereby the casing 8 does not prevent the transfer of heat and water vapour through the front wall of the electric sauna stove 1.
  • An air gap 9 is left between the frame 2 and the casing 8, by means of which the air in the sauna warms up evenly, and in which air gap 9 air flowing upwards reduces the heating up of the casing 8 thus increasing the operational safety of the electric sauna stove 1.
  • Figure 2 shows a side view of the electric sauna stove 1 in partial cross-section.
  • An electric resistor or resistors 10 are preferably located in one row making it easy to place the stove stones 3 inside the frame 2 for stones.
  • An intermediate bottom 2a can be arranged in the frame 2 at such a height that the stone space of the frame 2 becomes appropriate, i.e. the quantity of the stove stones 3 is made suitable in view of the capacity of the electric sauna stove 1.
  • a plate above the control means 4 and below the frame 2 can be made slanted so that water thrown on a cold sauna stove, for instance, flows down to the floor without damaging the control means 4.
  • the top part of the back casing 8c can be bent forward making it into a guide plate guiding the water vapour towards the sauna.
  • the electric sauna stove 1 can be fixed to a wall with wall mountings 11. It is naturally possible to make the electric sauna stove 1 a stand-up model in a manner known per se.
  • the casing 8 can comprise two adjacent plates, for instance, with an air gap in between.
  • the drawing and the related description is only intended to illustrate the idea of the invention. The invention may vary in detail within the scope of the claims.
  • the casing 8 may also contain holes, and consequently be arranged at the front wall of the electric sauna stove 1 allowing heat and water vapour to transfer in spite of it to the sauna also from the sides of the electric sauna stove 1.
  • the casing 8 may also be made of wire mesh, in which case the wall of the electric sauna stove 1 is made of two grids, of which the outer one is cooler, thus increasing operational safety.
  • the frame 2 for stones and the casing 8 can also be made of a ceramic or synthetic material or some other suitable material instead of metal.

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Epidemiology (AREA)
  • Pain & Pain Management (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Rehabilitation Therapy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Devices For Medical Bathing And Washing (AREA)

Abstract

An electric sauna stove having an open-topped frame (2) with stove stones (3) and at least one electric resistor (5) inside. At least one wall of the frame (2) has openings (5), and consequently when the electric sauna stove is used, heat is transferred to the sauna through the openings (5) and when water is thrown on the stove stones, at least part of the water vapour escapes through the openings (5).

Description

ELECTRIC SAUNA STOVE
The invention relates to an electric sauna stove having an open- topped frame for stones comprising walls and a bottom and intended to be filled with stove stones, and at least one electric resistor arranged to be at least partly inside the frame for stones.
A conventional electric sauna stove has an electric resistor arranged in an open-topped stone compartment filled with stove stones. The casing of the stove is arranged around the stone compartment. The heat produced by this type of sauna stove is often too dry and various humidifying solutions have been developed to be arranged with the conventional electric sauna stove to increase humidity in the sauna. In addition, the heat from the stove is mainly directed upwards through the open-topped stone compartment and consequently the bottom section of the sauna easily remains uncomfortably cool and the sitting platform must be made quite high.
Further, electric sauna stoves are known where the electric resistor heats stone plates which typically form the front wall of this type of a sauna stove. This sauna stove is, however, structurally difficult and complex and, thus, quite expensive. The purchasing price of stone plates and their rather poor durability also pose considerable problems.
The object of this invention is to provide an electric sauna stove without the above-mentioned drawbacks.
The electric sauna stove of the invention is characterized in that at least one wall of the frame for stones has an opening or openings so that when the electric sauna stove is used, heat is at least partly transferred through at least one opening and when water is thrown on the stove stones, at least a part of the water vapour escapes through at least one opening, thus allowing heat and water vapour into the sauna from the side of the sauna stove. An essential idea of the invention is that the electric sauna stove has a frame for stones inside which the stove stones and at least one electric resistor are arranged. A further essential idea is that at least one wall of the frame has openings so that when the sauna stove is used, heat is transferred to the sauna at least partly through the openings and when water is thrown on the stove stones, at least part of the water vapour escapes through the openings. The idea in a preferred embodiment is that at least one wall of the frame for stones is made of a wire mesh. The idea of another preferred embodiment is that the electric resistors are placed in one row.
The invention provides the advantage that the sauna stove produces a softer heat and water vapour also flows from the side of the sauna stove. Heat is also transferred from the side of the sauna stove to the sauna, whereby the sauna stove also heats the bottom section of the sauna and the sitting platform need not be made very high. By making at least one wall of the frame for stones out of wire mesh, the above-mentioned properties are further enhanced. By arranging only one row of resistors into the sauna stove makes the frame easy to fill with stove stones and thus the sauna stove becomes reasonably small in depth and it does not take much space in the sauna.
The invention will be described in greater detail in the attached drawing, in which
Figure 1 shows a schematic illustrating a front view of an electric sauna stove of the invention and
Figure 2 shows a side view of the electric sauna stove of Figure 1 in partial cross-section.
Figure 1 shows an electric sauna stove 1 comprising a frame 2 for stones, inside which stove stones 3 are arranged. Further, an electric resistor is located at least partly inside the frame 2 for stones to warm up the sauna stove 1. The electric sauna stove 1 also comprises control means 4 with which the electric sauna stove 1 is switched on and off and with which the temperature of the electric sauna stove 1 is adjusted in a manner known per se. The control means 4 can reside in the electric sauna stove 1 as shown in Figure 1 or in a separate control section in a manner known per se.
At least one wall of the frame 2 for stones has one or more openings 5. At least one opening 5 allows heat to pass to the sauna, and consequently the electric sauna stove warms up the sauna also through its sides more effectively than an electric sauna stove equipped with a solid casing. When water is thrown on the stove stones, some of the water vapour escapes through at least one opening 5 to the sauna from the side of the electric sauna stove 1 making the heat more humid and comfortable. The size of the openings 5 is smaller than that of the stove stones 3 to keep the stones 3 firmly inside the frame 2. The shape of the openings 5 may vary as desired, they can be approximately square as shown in Figure 1 or long and narrow, for instance. The proportion of the surface area of the openings 5 is preferably at least 30% of the surface area of one wall of the frame 2 to achieve efficient warming up of the sauna and softening of the heat. Most preferably, at least one wall of the frame 2 is made of wire mesh by arranging metal wires 6 crosswise. The thickness of the metal wires 6 can vary between 2 and 4 mm, for instance, and the distance between them between 10 to 30 mm making the proportion of the openings 5 of the surface area of the frame 2 considerable and allowing the heat to transfer extremely effectively sideways from the electric sauna stove 1 and allowing the water to be thrown on the stove stones 3 also from the side and allowing the water vapour also to escape to the sauna sideways through the wire mesh. Most preferably, the frame 2 is substantially made entirely of metal wire 6, i.e. all walls and the bottom of the frame are made of wire mesh making the manufacture of the frame 2 simple and preventing the frame 2 from restricting the transfer of heat in any way to the sauna. If the frame 2 is substantially made entirely of metal wire 6, a support band 7 made of metal plate can be fixed to its upper part to increase the sturdiness of the frame 2.
A casing 8 can be arranged around the frame 2 for stones, comprising a right side casing 8a, a left side casing 8b and a back casing 8c, whereby the casing 8 does not prevent the transfer of heat and water vapour through the front wall of the electric sauna stove 1. An air gap 9 is left between the frame 2 and the casing 8, by means of which the air in the sauna warms up evenly, and in which air gap 9 air flowing upwards reduces the heating up of the casing 8 thus increasing the operational safety of the electric sauna stove 1. Figure 2 shows a side view of the electric sauna stove 1 in partial cross-section. An electric resistor or resistors 10 are preferably located in one row making it easy to place the stove stones 3 inside the frame 2 for stones. Further, in this case, the depth measurement of the electric sauna stove 1 remains quite small. An intermediate bottom 2a can be arranged in the frame 2 at such a height that the stone space of the frame 2 becomes appropriate, i.e. the quantity of the stove stones 3 is made suitable in view of the capacity of the electric sauna stove 1. A plate above the control means 4 and below the frame 2 can be made slanted so that water thrown on a cold sauna stove, for instance, flows down to the floor without damaging the control means 4. The top part of the back casing 8c can be bent forward making it into a guide plate guiding the water vapour towards the sauna. The electric sauna stove 1 can be fixed to a wall with wall mountings 11. It is naturally possible to make the electric sauna stove 1 a stand-up model in a manner known per se. Further, the casing 8 can comprise two adjacent plates, for instance, with an air gap in between. The drawing and the related description is only intended to illustrate the idea of the invention. The invention may vary in detail within the scope of the claims. Thus, the outer measurements and capacity of the electric sauna stove can be defined and selected as required. Further, the casing 8 may also contain holes, and consequently be arranged at the front wall of the electric sauna stove 1 allowing heat and water vapour to transfer in spite of it to the sauna also from the sides of the electric sauna stove 1. The casing 8 may also be made of wire mesh, in which case the wall of the electric sauna stove 1 is made of two grids, of which the outer one is cooler, thus increasing operational safety. Further, water vapour and heat can efficiently be transferred through such a double grid also from the sides of the electric sauna stove to the sauna. In addition, such a completely double-gridded, stand-up model is aesthetically impressive when placed, for instance, in the middle of the sauna. The frame 2 for stones and the casing 8 can also be made of a ceramic or synthetic material or some other suitable material instead of metal.

Claims

1. An electric sauna stove having an open-topped frame (2) for stones comprising walls and a bottom and intended to be filled with stove stones (3), and at least one electric resistor (5) arranged to be at least partly inside the frame (2), characterized in that there is an opening or openings (5) in at least one of the walls of the frame (2) for stones so that when the electric sauna stove (1) is used, heat is at least partly transferred through at least one opening (5) and when water is thrown on the stove stones, at least part of the water vapour escapes through at least one opening (5) thus allowing heat and water vapour into the sauna from the side of the electric sauna stove.
2. An electric sauna stove as claimed in claim 1, characterized in that the proportion of the opening or openings (5) is at least 30% of the surface area of one wall of the frame (2) for stones.
3. An electric sauna stove as claimed in claim 1 or 2, characterized in that all walls of the frame (2) for stones have openings (5).
4. An electric sauna stove as claimed in any one of the preceding claims, characterized in that at least one wall of the frame (2) for stones is made of wire mesh.
5. An electric sauna stove as claimed in claim 4, characterized in that all walls and the bottom of the frame (2) for stones is made of wire mesh.
6. An electric sauna stove as claimed in any one of the preceding claims, characterized in that the electric sauna stove (1 ) comprises a casing (8) arranged on the outside of the frame (2) for stones, having side casings (8a, 8b) and a back casing (8c), and that the frame (2) is fixed to the casing (8) so that there is an air gap (9) between the frame (2) and the casing (8).
7. An electric sauna stove as claimed in any one of the preceding claims, characterized in that the electric sauna stove (1 ) comprises a casing (8) having holes and arranged on the outside of the frame (2) for stones.
8. An electric sauna stove as claimed in claim 5, characterized in that the electric sauna stove (1 ) comprises a casing (8) which is at least mainly made of wire mesh and arranged on the outside of the frame (2) for stones.
9. An electric sauna stove as claimed in any one of the preceding claims, characterized in that the electric resistor or resistors (5) are placed in one row.
PCT/FI1999/001022 1998-12-11 1999-12-09 Electric sauna stove WO2000035405A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE19983801T DE19983801T1 (en) 1998-12-11 1999-12-09 Electric sauna heater
AU16628/00A AU1662800A (en) 1998-12-11 1999-12-09 Electric sauna stove
SE0102060A SE519937C2 (en) 1998-12-11 2001-06-11 Electric sauna oven

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI982687A FI109085B (en) 1998-12-11 1998-12-11 Electric sauna oven
FI982687 1998-12-11

Publications (1)

Publication Number Publication Date
WO2000035405A1 true WO2000035405A1 (en) 2000-06-22

Family

ID=8553094

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI1999/001022 WO2000035405A1 (en) 1998-12-11 1999-12-09 Electric sauna stove

Country Status (5)

Country Link
AU (1) AU1662800A (en)
DE (1) DE19983801T1 (en)
FI (1) FI109085B (en)
SE (1) SE519937C2 (en)
WO (1) WO2000035405A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002074224A1 (en) * 2001-03-01 2002-09-26 Veijo Olavi Kareinen Method for heating of sauna oven and a sauna oven according to the method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1075896A (en) * 1963-07-16 1967-07-12 Sven Olof Jansson Thermal storage steam raiser and/or air heater for use in bathrooms
DE2657486A1 (en) * 1976-12-18 1978-06-22 Walter Kratz Sauna cabin with stone filled oven - has vertical grid over middle zone for steam discharge into seating space
EP0343555A2 (en) * 1988-05-21 1989-11-29 Dannenmann, Gudrun Sauna heater
WO1990001918A1 (en) * 1988-08-17 1990-03-08 Erkki Telamo Electrically heated sauna oven

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1075896A (en) * 1963-07-16 1967-07-12 Sven Olof Jansson Thermal storage steam raiser and/or air heater for use in bathrooms
DE2657486A1 (en) * 1976-12-18 1978-06-22 Walter Kratz Sauna cabin with stone filled oven - has vertical grid over middle zone for steam discharge into seating space
EP0343555A2 (en) * 1988-05-21 1989-11-29 Dannenmann, Gudrun Sauna heater
WO1990001918A1 (en) * 1988-08-17 1990-03-08 Erkki Telamo Electrically heated sauna oven

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002074224A1 (en) * 2001-03-01 2002-09-26 Veijo Olavi Kareinen Method for heating of sauna oven and a sauna oven according to the method

Also Published As

Publication number Publication date
SE0102060D0 (en) 2001-06-11
SE519937C2 (en) 2003-04-29
FI109085B (en) 2002-05-31
FI982687A (en) 2000-06-12
DE19983801T1 (en) 2002-05-08
AU1662800A (en) 2000-07-03
FI982687A0 (en) 1998-12-11
SE0102060L (en) 2001-08-06

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