JP2002162071A - Hot air heater - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hot air heater allowing a humidifying pan to be detached from a body case easily and cleaned in a hot air heater provided with the humidifying pan and a water supply device supplying water to this humidifying pan. SOLUTION: This heater 10 is provided with a body case 11 having an air inlet 15 and a hot air supply grille 14, a blast passage 18 formed in this body case 11 to provide communication between the air inlet 15 and the hot air supply grille 14, a fan for convection 34 and a heat exchanging part 20 that are arranged in this blast passage 18, a combustion part 21 supplying the hot air of combustion into this heat exchanging part 20, a humidifying pan 40 arranged in the blast passage 18 on the leeward of the heat exchanging part 20 to store the humidifying water to be evaporated by hot air, a pan receiver 36 accommodating and holding this humidifying pan 40 detachably, and a water supply device 45 supplying the humidifying water to the humidifying pan.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot air heater having a humidifying function, such as an oil fan heater or a gas fan heater.

[0002]

2. Description of the Related Art Conventionally, as a warm air heater 1 of this type,
As shown in FIG. 6, a convection fan 3 and a heat exchanger 4 are provided in a main body 1A having a warm air outlet 2 at a lower front portion and an air suction port at an upper rear portion. A humidifying dish 6 is disposed downstream of the heat exchanger 4 in the ventilation channel 5 in which the humidifying tray 6 is disposed.

The humidifying tray 6 is supplied with humidifying water from a water supply device having a water supply tank 7 of a cartridge type and a tank receiving body 8. Are connected together. The water supply tank 7 is removably mounted on a tank receiver 8.

[0004]

By the way, in the conventional hot air heater 1 as described above, the tank receiver 8 has the main body 1A.
And the humidifying tray 6 and the tank receiver 8 are integrally connected by the water supply pipe 9, so that it was not easy to remove the humidifying tray 6 from the main body 1A. For this reason, when cleaning the humidifying dish 6, the humidifying dish 6 is performed while being stored in the main body 1A, and there is a problem that cleaning is difficult.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems. In a hot air heater equipped with a humidifying dish and a water supply device for supplying water to the humidifying dish, the humidifying dish is easily removed from a main body case for cleaning. It is an object of the present invention to provide a hot air heater that can be used.

[0006]

According to the first aspect of the present invention, there is provided a main body case having an air inlet and a hot air outlet,
A blower passage formed in the main body case and connecting the air inlet and the warm air outlet, a convection fan and a heat exchanger disposed in the blower passage; and a combustion hot air in the heat exchanger. And a humidifying dish disposed in a blast passage on the lee side of the heat exchange section for storing humidifying water to be evaporated by warm air, and detachably holding and holding the humidifying dish. The hot air heater includes a dish receiver and a water supply device for supplying humidifying water to the humidifying dish.

According to a second aspect of the present invention, in the hot air heater according to the first aspect, a permeable and water-absorbing evaporation promoting body is provided on the humidifying dish so as to contact the hot air. It is characterized by having.

A third aspect of the present invention is the hot air heater according to the second aspect, wherein the evaporation promoting body is made of a ceramic fiber as a base material.

According to a fourth aspect of the present invention, in the hot air heater according to the first aspect, the dish receiver is provided with a temperature sensor for detecting a temperature of the dish receiver. .

According to a fifth aspect of the present invention, in the hot air heater according to the fourth aspect, when the temperature sensor detects a temperature equal to or higher than a predetermined temperature, the humidification water in the humidification dish is in a dry state. It is characterized in that it is notified by a drought notification means.

According to a sixth aspect of the present invention, there is provided a main body case having an air inlet and a hot air outlet, an air flow passage formed in the main body case and connecting the air inlet and the hot air outlet, A convection fan and a heat exchange unit disposed in the wind passage, and a combustion unit for supplying combustion hot air into the heat exchange unit;
A humidifying dish for storing humidifying water to be evaporated by warm air, a dish receiving body for detachably holding and holding the humidifying dish, and A water supply device for supplying humidification water to the water supply device, wherein the water supply device has a detachable cartridge-type water supply tank, a tank receiver for receiving humidification water from the water supply tank, and pumps up the humidification water in the tank receiver. Electric water pump,
It is a warm air heater configured by a water supply pipe connected to the electric water supply pump.

According to a seventh aspect of the present invention, in the hot air heater according to the sixth aspect, the water supply tank is housed so as to be able to be taken in and out of the main body case through a tank inlet / outlet provided on a top surface of the main body case. It is characterized by having comprised.

According to an eighth aspect of the present invention, in the hot air heater according to the sixth aspect, the electric water supply pump has a variable pumping amount.

According to a ninth aspect of the present invention, in the hot air heater according to the sixth aspect, the electric water supply pump is constituted by an electromagnetic pump.

According to a tenth aspect of the present invention, in the hot air heater according to the sixth aspect, the distal end outlet of the water supply pipe faces directly above the humidifying dish.

The invention according to an eleventh aspect of the present invention provides a main body case having an air inlet and a hot air outlet, an air flow passage formed in the main body case and connecting the air inlet and the hot air outlet, A convection fan and a heat exchange unit arranged in the wind passage, a combustion unit for supplying combustion hot air into the heat exchange unit, and a convection fan arranged in the blast passage on the lee side of the heat exchange unit to evaporate by hot air A humidifying dish for storing humidifying water,
A dish receiver for detachably storing and holding the humidifying dish, and a water supply device for supplying humidifying water to the humidifying dish; the water supply device includes a detachable cartridge-type water supply tank; A tank receiver that receives humidified water, an electric water supply pump that pumps up humidified water in the tank receiver, and a water supply pipe that is connected to the electric water supply pump, wherein the plate receiver and the tank receiver are: It is a hot air heater connected via a return water channel for returning excess water overflowing from the humidifying dish from the dish receiver to the tank receiver.

According to a twelfth aspect of the present invention, in the hot air heater according to the eleventh aspect, the return pipe forming the return water passage has an outlet on the tank receiver side lower than an inlet on the dish receiver. Thus, the surplus water is returned to the tank receiver side by a head.

According to a thirteenth aspect of the present invention, there is provided a main body case having an air inlet and a warm air outlet, an air flow passage formed in the main body case and connecting the air inlet and the warm air outlet, A convection fan and a heat exchange unit disposed in the wind passage, a combustion unit for supplying combustion hot air into the heat exchange unit, and a convection fan disposed downstream of the heat exchange unit in the blast passage and evaporated by warm air A humidifying dish for storing humidifying water to be
A dish receiver for detachably storing and holding the humidifying dish, and a water supply device for supplying humidifying water to the humidifying dish; the water supply device includes a detachable cartridge-type water supply tank; It is composed of a tank receiver for receiving humidified water, an electric water supply pump for pumping up the humidified water in the tank receiver, and a water supply pipe connected to the electric water supply pump. It is characterized by being a hot air heater provided with an opening for accommodating therein.

According to a fourteenth aspect of the present invention, in the hot air heater according to the thirteenth aspect, the opening is covered with a removable front panel.

According to a fifteenth aspect of the present invention, in the hot air heater according to the thirteenth aspect, the opening is covered with an inspection lid provided at a lower portion of the front of the main body case separately from the front panel. It is characterized by.

According to a sixteenth aspect of the present invention, in the hot air heater according to the fourteenth aspect, the front panel is provided with a humidifying dish inspection port at a position corresponding to the humidifying dish. It is characterized by being covered with.

According to a seventeenth aspect of the present invention, in the hot air heater according to the sixteenth aspect, the inspection port is set to a size and a shape that allows a humidifying dish to be taken in and out.

The invention of claim 18 is the invention of claim 15 or 16
Wherein the inspection lid is rotatably provided on the main body case such that an upper end side thereof is rotated forward of the main body case.

[0024]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS (First Embodiment) An embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 is an external perspective view of an oil hot air heater in one embodiment of the present invention, FIG. 2 is a sectional side view thereof, and FIG. 3 is a partially cutaway front view of the oil hot air heater. is there. In FIG. 1, an oil hot air heater (hereinafter referred to as a heater) 10
Is provided with a box-shaped main body case 11.
Reference numeral 1 denotes a front panel 1 having a case main body 10A and a front panel 12, and a front surface of the case main body 10A is detachably mounted.
2, a lower part of the front panel 12 faces a horizontally long hot air outlet grill (hot air outlet) 14 having a plurality of horizontal guide blades 13. An operation unit having an operation switch for operating the heater 10, a set temperature switch for setting a desired room temperature, a humidification operation switch for setting a humidification mode, and the like are provided on a top surface of the main body case 11. (Not shown), a display unit (not shown) for displaying the operation mode of the heater, the set temperature, and the like are provided.

2 and 3, the case body 10A
An air suction port 15 having a detachable filter 15a is provided at the upper part of the back plate, and mounting feet 16 for horizontal adjustment are freely adjustable near the four corners of the bottom plate of the case body 10A. Attached.

Reference numeral 17 denotes a back guard attached to the rear of the case body 10A.
Consists of a top plate and left and right side plates, and the case body 10A
It covers the upper part of the rear space and the left and right sides of the rear space between the room and the room wall.

An air passage 18 is formed in the case body 10A and extends from the air inlet 15 to the hot air outlet grill 14. An oil burner 21 that vaporizes and burns petroleum fuel such as kerosene, a combustion tube 22 connected to the oil burner 21, a connection box 23 connected to the combustion tube 22, A heat exchange section 20 having a heat exchange pipe 24 and an exhaust collecting box 25 and an exhaust pipe 26 connected to the exhaust collecting box 25 are housed. An oil supply pipe (not shown) is provided at a lower portion of one side of the case body 10A.
An oil leveler (not shown) for storing oil fuel sent from the oil leveler is accommodated, and the fuel in this oil leveler is supplied to the oil burner 21 via a fuel pump (not shown) and a fuel supply pipe 27. Reference numeral 28 denotes an air supply blower for supplying combustion air to the oil burner 21. The air supply blower 28 has one end face connected to an air supply pipe 29, and the other end connected to the oil burner 21.

A hot air blower 31 is provided at an upper portion in the case body 10A so as to face the air suction port 15. The hot air blower 31 includes a motor 33 and a plurality of sirocco fans 34 (convection fan). ) And a plurality of fan cases 35, and the room air drawn into the case body 10 </ b> A from the air inlet 15 is blown toward the heat exchange unit 20.

A humidifying tray 40 for storing humidifying water to be evaporated by warm air is removably accommodated in the ventilation passage 18 on the leeward side of the heat exchanger 20, that is, in the lower portion of the case body 10A. A dish receiver 36 is provided, and the humidifying dish 4
Reference numeral 0 denotes a case body 10 through an insertion / removal opening 37 (see FIG. 2) formed by removing the hot air outlet grill 14.
A can be taken out of A.

A temperature sensor 44 for detecting the temperature of the dish receiver 36 is attached to the lower surface of the bottom plate 43 of the dish receiver 36. When the temperature sensor 44 detects a temperature equal to or higher than a predetermined temperature. , The fact that the humidification water in the humidification tray 40 is in a drought state is displayed on a display unit (dryness notification means) provided on the top surface of the main body case 11.

The dish receiver 36 has a dish shape and has a drain 41 on the right side, and a return pipe 42 is connected to the drain 41. The humidifying plate 4 is placed on the plate receiver 36.
0 is installed, and the water overflowing from the humidifying
Exhausted through 2.

The humidifying dish 40 is provided with an evaporation promoting body 38 made of ceramic fiber as a base material and having air permeability and water absorption. In the humidification operation mode of the heater 10, the evaporation promoting body 38 sucks up water from the humidifying dish 40 and is kept in a moist state. When the warm air comes into contact with the evaporation promoting body 38, moisture is vaporized, The room is humidified by the vaporized water.

A water supply device 45 is provided on the right side of the plate receiver 36.
Is provided. The water supply device 45 includes a detachable cartridge type water supply tank 47 and a water supply tank 47.
Receiver 46 for receiving humidified water from the tank, and an electric water supply pump 48 for pumping the humidified water in the tank receiver 46
And a water supply pipe 51 connected to the electric water supply pump 48.

The tank receiver 46 is fixed in the case main body 10A so that a substantially constant amount of water is maintained therein.
A float switch 52 for detecting that the water level has dropped below the steady water level is provided. When the float switch 52 detects a decrease in the water level in the tank receiver 46, it sends a detection signal to a controller (not shown), and the controller stops driving the electric water supply pump 48, and The water pump 48 is prevented from being idled.

Further, the other end of the return pipe 42 attached to the dish receiver 36 faces the tank receiver 46, and the return pipe 42 serves to remove excess water overflowing from the humidifying dish 40 into the dish receiver. It is a return channel for returning from 36 to the tank receiver 46.

The return pipe 42 has an outlet on the tank receiver 46 side lower than an inlet on the dish receiver 36, and
The surplus water is returned to the tank receiver 46 side by a head.

The water supply tank 47 is configured so as to be freely inserted into and removed from the main body case 11 through a tank inlet / outlet 49 provided on the top surface of the main body case, and the tank inlet / outlet 49 is closed by an opening / closing lid 49A. . Also,
The water supply tank 47 is mounted on the tank receiver 46 in an inverted manner so as to be detachable, and has a cap with a valve at the bottom,
Water for humidification is supplied to the tank receiver 46.

The electric water supply pump 48 has a water suction port and a water discharge port, the suction port is located below the water surface in the tank receiver 46, and a water supply pipe 51 is connected to the discharge port. The distal end outlet 51A of the pipe 51 faces directly above the humidifying dish 40. The electric water pump 48 is constituted by an electromagnetic pump and operates in the humidification operation mode. At the time of the operation, the rotation speed of the sirocco fan 34 (motor 33) is controlled.
The amount of pumping can be varied so that the amount of pumping increases or decreases in accordance with the increase or decrease in the number of revolutions.

In the above configuration, when the operation of the heater 10 is started, the combustion air is supplied to the oil burner 21 from the air supply blower 28, and the fuel supply pipe 27 is operated by the operation of the fuel pump (not shown). And the oil burner 21 starts burning. By the start of the combustion of the oil burner 21, the combustion gas passes through the heat exchange section 20 and is discharged from the exhaust pipe 26 to the outside.

Here, when the temperature of the heat exchange section 20 becomes higher than a predetermined temperature, the hot air blower 31 is driven, and the room air purified by the filter 15a is sucked into the main body case 11 from the air suction port 15. This air is blown by the hot air blower 3
The air is accelerated by the first sirocco fan 34 and blown toward the heat exchange unit 20, and exchanges heat with the heat exchange unit 20 to become hot air,
The hot air is discharged from the hot air outlet grill 14 toward the front of the main body case 11 to heat the room. At this time, warm air hits the humidifying dish 40 and the evaporation promoting body 38 provided on the downstream side of the heat exchange section 20, and the humidifying water stored in the humidifying dish 40 is heated and evaporated, and the humidified water is evaporated from the hot air blowing grill 14. It is released and the room is humidified.

When the heater 10 is operated without humidifying water in the humidifying plate 40, the humidifying plate 40 and the plate receiver 3 are not operated.
The temperature of the bottom plate 43 of No. 6 rises. When the temperature sensor 44 attached to the bottom plate 43 detects a value equal to or higher than a predetermined temperature, the fact that water is drought is displayed on the display unit, so that the user can easily recognize that water is drought. Can be.

As described above, the heater 1 according to the present embodiment is
Since the humidifying pan 40 is placed on the pan receiver 36 without being fixed, the humidifying pan 40 is removed from the case body 10A after removing the front panel 12 when cleaning dust and the like accumulated in the humidifying pan 40. , Remove hot air outlet grill 14 and humidify plate 4
0 can be easily taken out of the case body 10A from the insertion opening 37. After the cleaning is completed, the humidifying dish 40 can be easily returned to the dish receiving body 36.

Further, the humidifying water overflowing from the humidifying dish 40 is received by the dish receiver 36 and returned to the tank receiver 46 via the return pipe 42, so that the humidifying water may overflow to the outside of the main body case 11. And the electric water pump 4
Even if the pumping amount of 8 is set to be larger than the evaporation amount of the humidifying water in the humidifying dish 40, there is no fear that the humidifying water overflows, so that the setting of the pumping amount of the electric water supply pump 48 can be roughened.

(Embodiment 2) In the first embodiment, the opening 37 for inserting and removing the humidifying dish 40 is located in front of the dish receiver 36.
The opening 37 for insertion / removal is covered with the warm air blow-off grill 14 and the front panel 12 that covers the front surface of the case body 10A, but as shown in FIG. An inspection lid 55 may be provided at a position corresponding to the humidifying tray 40 at the lower part of the front surface of the inspection lid 55, and the inspection lid 55 may cover the insertion opening 37. The inspection lid 55 is rotatably and detachably attached to the case main body 10A so that the upper end part rotates forward of the main body case 11 as shown by an arrow A.

As described above, by separating the front panel 12 and the inspection lid 55 from each other, the inspection of the humidifying plate 40 becomes possible by removing only the inspection lid 55. Outgoing work is reduced.

(Embodiment 3) Apart from Embodiment 2, FIG.
As shown in the figure, the front panel 1 at a position corresponding to the humidifying dish 40
2, an inspection port 56 is formed. The inspection port 56 is set to a size and a shape that allows the humidifying dish 40 to be taken in and out, so that the humidifying dish 40 can be inspected and the humidifying dish 40 can be put in and out of the main body case 11. The inspection opening 56 is provided with an inspection lid 57, and the lower end of the inspection lid 57 is pivotally supported by the front panel 12 so that the upper end rotates forward of the main body case 11 as shown by an arrow A.

As described above, the provision of the rotatable inspection lid 57 on the front panel 12 facilitates the inspection work of the humidifying dish 40 and reduces the work of putting the humidifying dish 40 in and out.

Although the present invention has been described based on various embodiments, the present invention is not limited to these embodiments.

In this embodiment, a heater using an oil burner 21 has been described, but a heater using a gas burner may be used.

[0051]

As described above, the present invention provides a humidifier for storing humidifying water evaporated by warm air in a ventilation passage connecting an air inlet and a warm air outlet formed in a main body case. A dish and a dish receiving body for detachably storing and holding the humidifying dish are provided, and a water supply device for supplying humidifying water to the humidifying dish is separated from the humidifying dish. It is possible to provide a hot air heater with a built-in humidifier, which can be taken out, facilitates cleaning of the humidifying tray, easily supplies water, realizes comfortable heating, and is excellent in maintenance and excellent in maintenance.

[Brief description of the drawings]

FIG. 1 is an external perspective view of a petroleum hot air heater according to Embodiment 1 of the present invention.

FIG. 2 is a side sectional view of an oil hot air heater.

FIG. 3 is a partially cutaway front view of the oil hot air heater.

FIG. 4 is an external perspective view of a petroleum hot air heater according to Embodiment 2 of the present invention.

FIG. 5 is an external perspective view of a petroleum hot air heater according to Embodiment 3 of the present invention.

FIG. 6 is a partially cutaway front view of a conventional oil warm air heater.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Oil hot air heater 10A Case main body 11 Main case 12 Front panel 14 Hot air blow-off grill 15 Air inlet 17 Back guard 18 Ventilation flow path 20 Heat exchange unit 21 Oil burner (combustion unit) 22 Combustion cylinder 23 Connection box 24 Heat Replacement pipe 34 Sirocco fan (convection fan) 36 Dish receiver 37 Insertion / removal opening (opening) 38 Evaporation enhancer 40 Humidifier Dish 41 Drain outlet 42 Return pipe 43 Bottom plate 44 Temperature sensor 45 Water supply device 46 Tank receiver 47 Water supply tank 48 Electric water supply pump 49 Tank inlet / outlet 51 Water supply pipe 55 Inspection lid 56 Inspection port 57 Inspection lid

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) F24H 3/06 302 F24H 3/06 302 (72) Inventor Takeshi Kashiwase 1 Otsukicho, Ashikaga-shi, Tochigi Prefecture Sanyo Electric Air Conditioning Co., Ltd. (72) Inventor Hiroto Hisamaki 1 Otsukicho, Ashikaga City, Tochigi Prefecture Sanyo Electric Air Conditioning Co., Ltd. F term (reference) 3L055 AA04 BA02 DA04 DA09 3L072 AA05 AC01 AD07 AE06

Claims (18)

[Claims] 1. A main body case having an air inlet and a hot air outlet, an air flow passage formed in the main body case and connecting the air inlet and the hot air outlet, and disposed in the air flow passage. The convection fan and the heat exchange unit, the combustion unit that supplies the combustion hot air into the heat exchange unit, and the humidification water that is disposed in the blast passage on the lee side of the heat exchange unit and evaporates with the hot air. A hot-air heater comprising: a humidifying tray for storing the humidifying dish; a dish receiver for detachably holding the humidifying dish; and a water supply device for supplying humidifying water to the humidifying dish. 2. The hot air heater according to claim 1, wherein the humidifying dish is provided with a breathable and water-absorbing evaporation promoting body so as to come into contact with the hot air. . 3. The hot air heater according to claim 2, wherein the evaporation promoting body is made of a ceramic fiber as a base material. 4. The hot air heater according to claim 1, wherein the dish receiver is provided with a temperature sensor for detecting a temperature of the dish receiver. 5. The method according to claim 1, wherein when the temperature sensor detects a temperature equal to or higher than a predetermined temperature, the humidifying water in the humidifying tray is informed of a drought condition by a drought notifying unit. The hot air heater according to claim 4. 6. A main body case having an air inlet and a hot air outlet, a blast passage formed in the main body case and connecting the air inlet and the hot air outlet, and disposed in the blast flow passage. A convection fan and a heat exchange unit, a combustion unit that supplies combustion hot air into the heat exchange unit, and a humidification water that is disposed in a blast passage on the lee side of the heat exchange unit and evaporates with hot air. A humidifying dish, a dish receiver for detachably storing and holding the humidifying dish, and a water supply device for supplying humidifying water to the humidifying dish, wherein the water supply device is a detachable cartridge type water tank. And a tank receiver for receiving humidification water from the water supply tank, an electric water supply pump for pumping up the humidification water in the tank reception body, and a water supply pipe connected to the electric water supply pump. Hot air heater. 7. The hot air heating system according to claim 6, wherein the water supply tank is configured to be housed in a main body case through a tank inlet / outlet provided on a top surface portion of the main body case. Machine. 8. The hot air heater according to claim 6, wherein the electric water supply pump has a variable pumping amount. 9. The hot air heater according to claim 6, wherein the electric water supply pump is constituted by an electromagnetic pump. 10. The hot air heater according to claim 6, wherein a tip end outlet of the water supply pipe faces directly above the humidifying dish. 11. A main body case having an air inlet and a warm air outlet, a blast passage formed in the main body case and connecting the air inlet and the warm air outlet, and disposed in the blast passage. A convection fan and a heat exchange unit, a combustion unit for supplying combustion hot air into the heat exchange unit, and a humidifying water disposed in a blast passage on the lee side of the heat exchange unit for evaporating by hot air. A humidifying dish, a dish receiver for detachably storing and holding the humidifying dish, and a water supply device for supplying humidifying water to the humidifying dish. A tank receiver for receiving the humidified water from the water supply tank, an electric water supply pump for pumping the humidified water in the tank receiver, and a water supply pipe connected to the electric water supply pump. Tank receiver It is warm air heater, characterized in that it is contacted through the return water passage back to receiving tank body surplus water overflowing from the humidifying pan from the pan body. 12. A return pipe constituting the return water passage, wherein an outlet portion on the tank receiver side is positioned lower than an inlet portion on the dish receiver side, and the excess water is returned to the tank receiver side by a head. The hot air heater according to claim 11, characterized in that: 13. A main body case having an air inlet and a warm air outlet, a blast passage formed in the main body case, and connecting the air inlet and the warm air outlet, and disposed in the blast passage. A convection fan and a heat exchange unit, a combustion unit that supplies combustion hot air into the heat exchange unit, and a humidification water that is disposed in a blast passage on the lee side of the heat exchange unit and evaporates with hot air. A humidifying dish, a dish receiver for detachably storing and holding the humidifying dish, and a water supply device for supplying humidifying water to the humidifying dish, wherein the water supply device is a detachable cartridge type water tank. And a tank receiver that receives the humidified water from the water supply tank, an electric water supply pump that pumps up the humidified water in the tank receiver, and a water supply pipe connected to the electric water supply pump. , The humidifying dish Warm air heater, characterized in that openings for loading and unloading can be accommodated in the body case are al provided. 14. The hot air heater according to claim 13, wherein the opening is covered with a removable front panel. 15. The hot air heater according to claim 13, wherein the opening is covered with an inspection lid provided at a lower portion of a front surface of the main body case separately from the front panel. 16. The humidifying tray according to claim 14, wherein the front panel is provided with an inspection port of the humidifying dish at a position corresponding to the humidifying dish, and the inspection port is covered with an inspection lid. Hot air heater. 17. The hot air heater according to claim 16, wherein the inspection port is set to a size and a shape that allows a humidifying dish to be taken in and out. 18. The warm air according to claim 15, wherein the inspection lid is rotatably provided on the main body case such that an upper end side thereof is rotated forward of the main body case. heater.