JPS61153440A - Hot-air room heater - Google Patents

Hot-air room heater

Info

Publication number
JPS61153440A
JPS61153440A JP59280240A JP28024084A JPS61153440A JP S61153440 A JPS61153440 A JP S61153440A JP 59280240 A JP59280240 A JP 59280240A JP 28024084 A JP28024084 A JP 28024084A JP S61153440 A JPS61153440 A JP S61153440A
Authority
JP
Japan
Prior art keywords
air
damper
cold air
hot
hot air
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.)
Pending
Application number
JP59280240A
Other languages
Japanese (ja)
Inventor
Mitsuharu Tomioka
冨岡　光春
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP59280240A priority Critical patent/JPS61153440A/en
Publication of JPS61153440A publication Critical patent/JPS61153440A/en
Pending legal-status Critical Current

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
    • F24H3/00—Air heaters
    • F24H3/02—Air heaters with forced circulation
    • F24H3/04—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element
    • F24H3/0488—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using fluid fuel
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]

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)
  • Direct Air Heating By Heater Or Combustion Gas (AREA)

Abstract

PURPOSE:To eliminate the feeling of cool air immediately after ignition by a method wherein a cool air blow-off port is provided above a hot-air blow-off port and a damper, opened when a necessary time has elapsed after starting operation, is provided in either the cold-air blow-off port or the path of cold air. CONSTITUTION:When the heater is ignited and the combustion thereof is started, the temperatures of a combustion tube 5, the intermediate plate 12 of a duct and a lower plate 6 are risen and the temperature of hot-air, blow-off from the hot-air blow-off port 13b of a front plate, is risen. When the temperature of the hot-air becomes higher than a given temperature, a thermistor 19 detects it, the damper 14 directly connected to a stepped motor 15 is turned, the cold-air blow-off port 13a is opened and a part of air from a fan 10 is blown off into a room through a cold air path 13 consisting of the intermediate plate 12 of duct and an upper plate 9 of the same. When the switch of the heater is put OFF, the stepped motor 15 is turned reversely to the initial position thereof and the damper 14 is closed.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は一般家庭の暖房に使用される温風機に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a hot air fan used for heating a general household.

従来の技術 近年、一般家庭用の温風機は室内の上下温度ムラを少な
くし経済的で快適な温風機を指向し種々の方策が講じら
れている。BACKGROUND OF THE INVENTION In recent years, various measures have been taken to create an economical and comfortable hot air fan for general household use that reduces unevenness in indoor temperature.

以下図面を参照しながら上述した従来の一例について説
明する。第６図、第６図は従来の温風機を示すものであ
る。第５図において、１は燃料を燃焼させるバーナであ
る。２はバーナ１を覆い上方を開口した筒形の燃焼筒で
、その下端はバーナ１の７ラング部及びダクト下板３と
接続されている。ダクト下板３はその上部に載置したダ
クト上板４とで箱体を構成し、吹出口５及び送風機６と
連結されている。又ダクト内に開口した燃焼筒２は送風
機６及び吹出口５と対向している。以上のように構成さ
れた温風機に於いて、バーナ１で燃焼した高温の燃焼ガ
スは燃焼筒２の上部開口部からダクト内に放出され、送
風機６から送られる風と混合され温風となって吹出口５
より放出される。An example of the above-mentioned conventional technology will be described below with reference to the drawings. 6 and 6 show a conventional hot air fan. In FIG. 5, 1 is a burner that burns fuel. Reference numeral 2 denotes a cylindrical combustion tube which covers the burner 1 and is open at the top, the lower end of which is connected to the seven rungs of the burner 1 and the duct lower plate 3. The duct lower plate 3 forms a box with the duct upper plate 4 placed thereon, and is connected to an air outlet 5 and a blower 6. Further, the combustion tube 2 opened into the duct faces the blower 6 and the air outlet 5. In the hot air fan configured as described above, high-temperature combustion gas burned in the burner 1 is released into the duct from the upper opening of the combustion tube 2, mixed with the air sent from the blower 6, and becomes hot air. Air outlet 5
released.

しかし上記構成では室内に放出された温風は高温である
ため上昇気流が働き室の隅まで温風が届かず、室内上下
の温度ムラが大きなものとなっていた。その為最近第６
図に示すようにダクト上板４と燃焼筒２の間に仕切り板
７を設け、吹出口５の上部に冷風吹出口８を設けるとと
もにこの冷風吹出口８を上下動自在としたもの（特公昭
５６−１６８５６号公報）が提案されている。前記のよ
うに構成された温風機に於いては吹出口５の上部に設け
た冷風吹出口８から温風と同時に冷風が吹き出される。However, in the above configuration, since the hot air discharged into the room is at a high temperature, upward air currents work and the warm air does not reach the corners of the room, resulting in large temperature unevenness between the top and bottom of the room. Therefore, recently the 6th
As shown in the figure, a partition plate 7 is provided between the duct upper plate 4 and the combustion tube 2, and a cold air outlet 8 is provided above the air outlet 5, and this cold air outlet 8 is made vertically movable. 56-16856) has been proposed. In the hot air fan configured as described above, cold air is blown out from the cold air outlet 8 provided above the air outlet 5 at the same time as hot air.

すなわち室内に温風が吹き出された後もその上部に比重
の重い冷風が同時に吹き出される為、温風の上昇気流を
押えて室の隅まで温風を導く事ができ、室内の上下温度
差を少なくし快適で経済的な暖房が可能となる。In other words, even after warm air is blown into the room, cold air with a heavy specific gravity is blown out at the same time, suppressing the rising airflow of hot air and guiding the warm air to the corners of the room, reducing the temperature difference between the top and bottom of the room. Comfortable and economical heating is possible with less heating.

発明が解決しようとする問題点 しかしながら上記のような構成では、温風機の点火直後
に於いては吹出口より吹出す温風の温度が低い為、逆に
風による冷風感があり不快である。Problems to be Solved by the Invention However, with the above configuration, the temperature of the hot air blown out from the outlet is low immediately after the hot air fan is ignited, so the wind gives a feeling of coldness, which is unpleasant.

特に冷風を温風の上部から吹き出す方式のものでけ更に
前記の冷′風感を強く感じることになる。In particular, if you use a type that blows cold air from above the warm air, you will feel the cold air feeling even more strongly.

本発明は上記問題点に鑑みてなしたもので、点火直後の
冷風感を解消し快適で室内温度ムラの少ない経済的な暖
房ができる温風機を提供するものである。The present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to provide a warm air fan that eliminates the feeling of cold air immediately after ignition, provides comfortable, economical heating with less uneven indoor temperature.

問題点を解決するｔｋｈの手段 上記問題点を解決する為に本発明の温風機は、温風を吹
き出す温風吹出口の上部に冷風を吹き出す冷風吹出口を
設け、この冷風吹出口あるいは冷風吹出口に至る通路に
運転開始後所要時間経過すると開くダンパーを設けであ
る。tkh Means for Solving the Problems In order to solve the above problems, the hot air fan of the present invention is provided with a cold air outlet that blows out cold air above the hot air outlet that blows out hot air, and this cold air outlet or cold air outlet. A damper is installed in the passage leading to the station, which opens after the required time has elapsed after the start of operation.

作　　用 本発明は上記した構成によって、点火直後の温風吹出口
より吹き出す温風の温度が低い時には冷風吹出口がダン
パーで開成されているので冷風の吹出しがなくなり、立
上がり時の冷風感を解消することができる。そして点火
後一定時間経過して温風吹出口より温風が吹き出すよう
になるとダンパーが開いて冷風が吹き出すようになり、
温度ムラのない快適な暖房が可能となる。Effect of the present invention With the above-described configuration, when the temperature of the hot air blown out from the hot air outlet immediately after ignition is low, the cold air outlet is opened by the damper, so there is no cold air blowing out, and the cold air feeling at the time of startup is eliminated. be able to. Then, after a certain period of time has passed after ignition, when hot air starts to blow out from the hot air outlet, the damper opens and cold air starts blowing out.
Comfortable heating without temperature unevenness is possible.

実施例 以下本発明の一実施例について、図面を参照しながら説
明する。EXAMPLE An example of the present invention will be described below with reference to the drawings.

第１図、第２図及び第３図に於いて、１は内部にバーナ
モータ２及びポンプ３を有したバーナ部で、その近傍に
点火器４を有して−る。５Ｆｉ前記バ一ナ部１の上部に
載置した筒状の燃焼筒、６は燃焼筒６の下面と連結し外
箱７の後面及び前板８の開口部の下部と接続したダクト
下板、９けダクト下板６の上部に載置した箱状のダクト
上板で、その一端を外箱の後面に設けたファン１０及び
モータ１１より成る送風機の上部に連結するとともに他
端を前記前板８の開口部の上面と連結して、前記ダクト
下板６と共に風胴９ａを形成している。In FIGS. 1, 2, and 3, reference numeral 1 denotes a burner section having a burner motor 2 and a pump 3 therein, and an igniter 4 near the burner section. 5Fi a cylindrical combustion tube placed on the upper part of the burner part 1; 6 a duct lower plate connected to the lower surface of the combustion tube 6 and connected to the rear surface of the outer box 7 and the lower part of the opening of the front plate 8; A box-shaped duct upper plate placed on the upper part of the 9-piece duct lower plate 6, one end of which is connected to the upper part of a blower consisting of a fan 10 and a motor 11 provided on the rear surface of the outer box, and the other end connected to the front plate. 8 and forms a wind barrel 9a together with the duct lower plate 6.

１２け燃焼筒５の上部開口とダクト上板９との間に設け
たダクト中板で、一端を前板８の開口部の中位に連結す
るとともに他端を前記ファン１０の前方に開口させて、
−ダクト上板９との間に冷風通路１３を形成している。A middle plate of the duct is provided between the upper opening of the 12 combustion cylinders 5 and the upper duct plate 9, and one end is connected to the middle of the opening of the front plate 8, and the other end is opened in front of the fan 10. hand,
- A cold air passage 13 is formed between the duct upper plate 9 and the duct upper plate 9.

１４はダクト上板９とダクト中板１２との間に位置する
回動自在な薄板状のダンパーで、このダンパー１４は回
転させる事によって前記冷風通路１３の終端開口、すな
わち冷風吹出口１３ａをふさいだり開いたりするように
なっている。１５は前記ダンパー１４の回転軸に直結し
たステップモータ、１６はスイッチ１７及び制御器１８
を取り付けた操作板、１９はダクト下板６とダクト中板
１２との空間の前板開口部、すなわち温風吹出口１３ｂ
近傍に感温部を取り付けたサーミスタ、２０はサーミス
タ１９の抵抗変化に応じて０Ｎ−ＯＦＦするコンパレー
タ、２１はリレー２２と直列に配列されコンパレータの
出力で０Ｎ−ＯＦＦするトランジスターで、前記リレー
２２の接点２２ａけステップモータ１５と直列に接続さ
れている。２３は抵抗、２４は前板８の温風吹出口１３
ｂに設けたグリル、２５けバーナ部及び外箱を載置した
置台、２６は外箱の上部に載置した天板である。Reference numeral 14 denotes a rotatable thin plate-shaped damper located between the duct upper plate 9 and the duct middle plate 12. By rotating this damper 14, it blocks the terminal opening of the cold air passage 13, that is, the cold air outlet 13a. It is designed to open or open. 15 is a step motor directly connected to the rotating shaft of the damper 14; 16 is a switch 17 and a controller 18;
19 is the front plate opening of the space between the duct lower plate 6 and the duct middle plate 12, that is, the hot air outlet 13b.
20 is a comparator that turns ON and OFF according to the resistance change of the thermistor 19; 21 is a transistor that is arranged in series with the relay 22 and turns ON and OFF according to the output of the comparator; The contact 22a is connected in series with the step motor 15. 23 is a resistor, 24 is a hot air outlet 13 on the front plate 8
26 is a top plate placed on the top of the outer box;

以上のように構成された温風機について以下その動作を
説明する。まず器具のスイッチ１７を入れるとバーナモ
ータ２及びポンプ３が動作しバ−す部１に燃料と空気を
供給する。バーナ部１は近傍に設けた点火器４によって
点火・燃焼する。同時に外箱の後部に設けたモータ１１
が回転し風が風胴９及び冷風通路１３内に送り込まれる
。バーナ部１の燃焼ガスは燃焼筒５を通りダクト中板１
２とダクト下板６で作られる風胴９に放出され、後部の
ファン１０より送られた風と混合し前板の温風吹出口１
３ｂ下部より吹き出される。一方ダクト上板９とダクト
中板１２で作られた冷風通路１３の冷風吹出口１３ａ近
傍に設けたダンパー１４は第２図に示すごとく冷風通路
１３をふさぐべく位置している。The operation of the warm air fan configured as above will be described below. First, when the switch 17 of the appliance is turned on, the burner motor 2 and pump 3 operate to supply fuel and air to the burr section 1. The burner section 1 is ignited and burned by an igniter 4 provided nearby. At the same time, the motor 11 installed at the rear of the outer box
rotates and air is sent into the wind cylinder 9 and the cold air passage 13. The combustion gas in the burner section 1 passes through the combustion tube 5 and the duct middle plate 1
2 and the duct lower plate 6, the air is mixed with the air sent from the rear fan 10, and the hot air outlet 1 of the front plate is emitted.
It is blown out from the bottom of 3b. On the other hand, a damper 14 provided near the cold air outlet 13a of the cold air passage 13 formed by the duct top plate 9 and the duct middle plate 12 is positioned to block the cold air passage 13, as shown in FIG.

器具が点火・燃焼してしばらくすると燃焼筒５や、ダク
ト中板１２、下板６の温度が高くなり、前板の温風吹出
口１３ｂより吹き出す温風の温度が高くなる。そしてこ
の温風が一定温度以上になるとこれをサーミスタ１９が
感知してコンパレータ２０がＯＮＬ、同時にトランジス
ター２１がＯＮする。その結果リレー２２に電流が流れ
、リレー接点がＯＮされ、ステップモータ１５が回転し
、ステップモータ１５と直結されたダンパー１４が回転
し、冷風吹出口１３ａを開く。冷風吹出口１３ａが開く
と、７アン１０から送られる風の一部がダクト中板１２
とダクト上板９で作られる冷風通路１３を通って室内へ
と吹出される。器具のスイッチを切るとステップモータ
１５は元の位置に逆転しダンパー１４を閉じる。すなわ
ちダンパー１４は閉成状態になるよう設定されている。After a while after the appliance ignites and burns, the temperature of the combustion tube 5, the duct middle plate 12, and the lower plate 6 becomes high, and the temperature of the warm air blown out from the hot air outlet 13b of the front plate becomes high. When this hot air reaches a certain temperature or higher, the thermistor 19 senses this, the comparator 20 turns ON, and at the same time the transistor 21 turns ON. As a result, current flows through the relay 22, turning on the relay contact, rotating the step motor 15, rotating the damper 14 directly connected to the step motor 15, and opening the cold air outlet 13a. When the cold air outlet 13a is opened, a part of the air sent from the 7-ring 10 reaches the duct middle plate 12.
The cold air is blown into the room through a cold air passage 13 formed by the duct top plate 9. When the appliance is switched off, the step motor 15 reverses to its original position and closes the damper 14. That is, the damper 14 is set to be in the closed state.

第４図は本発明の第２の実施例を示す回路図である。第
１の実施例の温度検出方式のかわりにタイマー２７を設
け、器具のスイッチを入れた後一定時間経過すると、ス
テップモータ１５に直列接続されたタイマー接点２８が
ＯＮＩ、、ステップモータ１５を回動させ、ステップモ
ータ１５と直結したダンパー１４を回転させて冷風通路
１３を開く構成としてあり、立上がり時の冷風感を解消
する。FIG. 4 is a circuit diagram showing a second embodiment of the present invention. A timer 27 is provided in place of the temperature detection method of the first embodiment, and when a certain period of time elapses after the appliance is turned on, a timer contact 28 connected in series to the step motor 15 turns the step motor 15. The damper 14 directly connected to the step motor 15 is rotated to open the cold air passage 13, thereby eliminating the feeling of cold air at the time of startup.

なお本発明は上記実施例の形態に限られるものではなく
、本発明の目的を達成するものであればどのように構成
してもよいものである。Note that the present invention is not limited to the embodiments described above, and may be structured in any manner as long as the object of the present invention is achieved.

発明の効果 以上のように本発明は温風吹出口の上部に冷風吹出口を
設け、この冷風吹出口あるいは冷風通路にダンパーを設
けて、器具の運転開始後の一定時間は冷風吹出口あるい
は冷風通路を閉塞し、一定時間経過後はこれを開くので
、器具運転直後の冷風による不快感を解消することがで
きると共に、温風が高温になって室内に吹き出される通
常時には温風の上昇気流を冷風により押えて室内の隅々
まで温風を導く事ができ、室内の上下温度ムラをなくし
快適な温風暖房が可能となる等、その効果は大なるもの
がある。Effects of the Invention As described above, the present invention provides a cold air outlet above the hot air outlet, and a damper is provided in the cold air outlet or the cold air passage, so that the cold air outlet or the cold air passage is closed for a certain period of time after the appliance starts operating. By closing the door and opening it after a certain period of time, it is possible to eliminate the discomfort caused by cold air immediately after the appliance is operated, and also to prevent the rising air of hot air during normal times when the hot air becomes hot and is blown into the room. The hot air can be guided to every corner of the room while being suppressed by the cold air, and its effects are great, such as eliminating unevenness in the top and bottom temperatures in the room and making comfortable hot air heating possible.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本発明の第１の実施例における温風機の断面図
、第２図は同前板を外した時の正面図、第３図は同回路
図、第４図は第２の実施例の回路図、第５図、第６図は
従来の温風機を示す断面図である。 １３・・・・・冷風通路、１３ａ・・・・・・冷風吹出
口、１３ｂ・・・・・温風吹出口、１４・・・・・・ダ
ンパー、１９・・・・・・制御手段（サーミスタ）、２
７・旧・・制御手段（タイマー）。 代理人の氏名　弁理士　中　尾　敏　男　ほか１名第３
図 第４図Fig. 1 is a sectional view of the warm air fan according to the first embodiment of the present invention, Fig. 2 is a front view with the front plate removed, Fig. 3 is the same circuit diagram, and Fig. 4 is the second embodiment. The example circuit diagrams, FIGS. 5 and 6, are cross-sectional views showing a conventional warm air fan. 13...Cold air passage, 13a...Cold air outlet, 13b...Warm air outlet, 14...Damper, 19...Control means (thermistor) ), 2
7. Old control means (timer). Name of agent: Patent attorney Toshio Nakao and 1 other person No. 3
Figure 4

Claims (3)

【特許請求の範囲】[Claims] （１）熱風を吹き出す温風吹出口と、その上部に設けた
冷風を吹き出す冷風吹出口と、上記冷風吹出口あるいは
冷風吹出口に至る通路に設けた開閉自在なダンパーと、
上記ダンパーを器具の運転開始後一定時間閉成状態にす
る制御手段とからなる温風機。(1) A hot air outlet that blows out hot air, a cold air outlet that blows out cold air provided above the hot air outlet, and a damper that can be opened and closed provided in the cold air outlet or a passage leading to the cold air outlet;
A hot air fan comprising a control means for keeping the damper in a closed state for a certain period of time after the appliance starts operating. （２）制御手段はダンパーを閉成状態に設定するととも
に、器具運転開始後の所定時間経過後にダンパーを開く
ように構成した事を特徴とする特許請求の範囲第１項記
載の温風機。(2) The hot air blower according to claim 1, wherein the control means is configured to set the damper in a closed state and to open the damper after a predetermined period of time has elapsed after the start of operation of the appliance. （３）制御手段は器具運転開始と連動して作動するタイ
マーとこのタイマーからの信号によってダンパーを駆動
する駆動手段とからなる特許請求の範囲第１項記載の温
風機。(3) The hot air blower according to claim 1, wherein the control means comprises a timer that operates in conjunction with the start of operation of the appliance, and a drive means that drives the damper based on a signal from the timer.
JP59280240A 1984-12-27 1984-12-27 Hot-air room heater Pending JPS61153440A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59280240A JPS61153440A (en) 1984-12-27 1984-12-27 Hot-air room heater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59280240A JPS61153440A (en) 1984-12-27 1984-12-27 Hot-air room heater

Publications (1)

Publication Number Publication Date
JPS61153440A true JPS61153440A (en) 1986-07-12

Family

ID=17622249

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59280240A Pending JPS61153440A (en) 1984-12-27 1984-12-27 Hot-air room heater

Country Status (1)

Country Link
JP (1) JPS61153440A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0448151A (en) * 1990-06-14 1992-02-18 Rinnai Corp Hot air heater

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0448151A (en) * 1990-06-14 1992-02-18 Rinnai Corp Hot air heater

Similar Documents

Publication Publication Date Title
JPS61153440A (en) Hot-air room heater
JPS61122444A (en) Air blowing control device for air conditioner
JPS605283Y2 (en) hot air gas oven
JPH0648116B2 (en) Hot air heating system
JP2633438B2 (en) Hot air heater
KR950000931B1 (en) Fan heater
KR940004179B1 (en) Warm air flow discharging device
JP6481226B2 (en) Hot air heater
JPH01196452A (en) Hot air flow space heater
KR940004178B1 (en) Controller for hot-air heater
JPS6345637Y2 (en)
JP2650655B2 (en) Hot air heater
JP2732443B2 (en) Hot air heater
JPS5916748Y2 (en) Indoor air pollution control device
JPH07269957A (en) Warm air heater
JPH0230682Y2 (en)
JPH04136651A (en) Ventilating device
JPS6266058A (en) Warm air space heater
JP2503783Y2 (en) Heating system
JPH039382B2 (en)
JP2002195655A (en) Hot air heater
JPH04217717A (en) Air-heater
JPH06281258A (en) Ff type gas hot-air heater
JPH0972557A (en) Heater for bath room
JPH05296571A (en) Warm air room heater