JPH02254230A - Hot water space heater - Google Patents
Hot water space heaterInfo
- Publication number
- JPH02254230A JPH02254230A JP1076930A JP7693089A JPH02254230A JP H02254230 A JPH02254230 A JP H02254230A JP 1076930 A JP1076930 A JP 1076930A JP 7693089 A JP7693089 A JP 7693089A JP H02254230 A JPH02254230 A JP H02254230A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- heat exchanger
- hot water
- burner
- heating power
- 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.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 238000010438 heat treatment Methods 0.000 claims abstract description 20
- 238000002485 combustion reaction Methods 0.000 abstract description 16
- 238000001514 detection method Methods 0.000 abstract description 3
- 230000005611 electricity Effects 0.000 abstract 1
- 238000009835 boiling Methods 0.000 description 6
- 238000003303 reheating Methods 0.000 description 4
- 238000010304 firing Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 239000006244 Medium Thermal Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Landscapes
- Steam Or Hot-Water Central Heating Systems (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
Description
【発明の詳細な説明】
(イ)産業上の利用分野
本発明は温水の循環により室内等の暖房を行う温水暖房
装置に関する。DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a hot water heating device for heating a room or the like by circulating hot water.
(ロ)従来の技術
上記温水暖房装置では、例えば特願昭63−10706
8号にて示される様に、暖房負荷に伴う温水温度の変化
に応じてバーナの火力を強、弱、停止制御すると共に、
循環水温度が高温制御の基準温度(80℃)に達すると
比例弁(10)を閉じる方向に制御する比例制御領域(
第4図中のb)を設けたものでは運転開始時には先ずガ
スバーナを強燃焼にて制御し温水温度が上記基準温度に
達すると比例制御を行う為、運転開始と同時に熱動弁(
56a)(56b)(56c)への通電を開始し、かつ
浴室換気乾燥器(72)等が不使用状態でこれらに設け
られた弁が閉じられている等負荷が少ない場合には、上
記基準温度に達した後比例制御すると温水温度が急激に
上昇し、熱交換器内で沸騰が生じるという問題がある。(b) Prior art The above-mentioned hot water heating system has been proposed, for example, in Japanese Patent Application No. 63-10706.
As shown in No. 8, the burner firepower is controlled to be strong, weak, or stopped in response to changes in hot water temperature due to heating load, and
A proportional control area (
In the case where b) in Fig. 4 is installed, at the start of operation, the gas burner is first controlled with strong combustion, and when the hot water temperature reaches the above reference temperature, proportional control is performed.
56a), (56b), and (56c), and when the load is small, such as when the bathroom ventilation dryer (72) etc. is not in use and the valves installed on these are closed, the above standards are met. If the proportional control is performed after the temperature has been reached, the hot water temperature will rise rapidly and boiling will occur in the heat exchanger.
(ハ)発明が解決しようとする課題
本発明は上記の特に運転開始時における熱交換器内の沸
騰防止を目的とするものである。(c) Problems to be Solved by the Invention The present invention aims to prevent boiling inside the heat exchanger as described above, particularly at the time of starting operation.
(ニ)課題を解決するための手段
本発明は熱交換器にて加熱した温水を循環ポンプにて放
熱器に循環する温水循環流路と、熱交換器の出口側温水
温度を温度検出器にて検出し、この温度が設定温度にな
る様に、熱交換器を加熱するバーナの火力を比例弁にて
制御する制御手段とを備えたものにおいて、この制御手
段にて、運転開始時のみ熱交換器の出口側温水温度がバ
ーナを最大火力にて燃焼する予め設定した設定温度に達
すると、バーナを予め設定した所定の中火力にて燃焼制
御して成るものである。(d) Means for Solving the Problems The present invention includes a hot water circulation flow path that circulates hot water heated in a heat exchanger to a radiator using a circulation pump, and a temperature detector that measures the hot water temperature on the outlet side of the heat exchanger. and a control means for controlling the thermal power of the burner that heats the heat exchanger using a proportional valve so that this temperature becomes the set temperature. When the hot water temperature on the outlet side of the exchanger reaches a preset temperature at which the burner burns at maximum thermal power, the burner is controlled to burn at a predetermined medium thermal power.
(ホ)作用
運転開始後、熱交換器の出口側温水温度が、バーナを最
大火力にて燃焼する予め設定した設定温度に達すると、
バーナを予め設定した所定の中火力にて燃焼制御するも
ので、これにより運転開始時、暖房負荷が少なくとも熱
交換器部分における沸騰を防止する事ができる。(E) After the start of operation, when the hot water temperature on the outlet side of the heat exchanger reaches the preset temperature at which the burner burns at maximum thermal power,
The burner is controlled to burn at a predetermined medium heat power, which prevents the heating load from boiling at least in the heat exchanger section at the start of operation.
(へ)実施例
本発明の実施例を先ず第1図に基づき説明すると、(1
)は温水暖房器本体で、外装ケース(2)内に熱交換器
(3)、これを加熱するガスバーナ(4)、このガスバ
ーナの排気ガスを外部に排出する排気ダクト(5)、循
環ポンプ(6)、膨張タンク(7)等を収納している。(f) Example An example of the present invention will first be explained based on FIG.
) is the main body of the hot water heater, which includes a heat exchanger (3) inside the outer case (2), a gas burner (4) that heats it, an exhaust duct (5) that discharges the exhaust gas from this gas burner to the outside, and a circulation pump ( 6), an expansion tank (7), etc.
又上記熱交換器(3)には、分岐用のヘッダー(8)を
介して例えば浴槽(9)内の水(10)を追焚する追焚
用コイル(11)−ヘッダー(12)−膨張タンク(7
)−循環ポンプ(6)を順次ループ状に接続し、これら
にて温水循環回路(13)を構成している。尚上記ヘッ
ダー(8)−(i2)間には、室内等に設置される暖房
用放熱器(14)も連結し、かつこの放熱器に近接して
図示しない運転スイッチと連動した開閉弁(15)を設
けていると共に、上記追焚用コイル(11)にも同じく
開閉弁(15)を設けている。The heat exchanger (3) also includes a reheating coil (11) for reheating water (10) in a bathtub (9) through a branching header (8), a header (12), and an expansion coil. Tank (7
)-circulation pumps (6) are sequentially connected in a loop to form a hot water circulation circuit (13). A heating radiator (14) installed indoors or the like is also connected between the header (8) and (i2), and an on-off valve (15) that is connected to an operation switch (not shown) is located close to the radiator. ), and the reheating coil (11) is also provided with an on-off valve (15).
更に上記循環ポンプ(6)の下流には、鎖部から低温ヘ
ッダー(16)を介して上記ヘッダー(12)に戻る低
温水循環回路(17)を分岐接続し、かつ上記低温ヘッ
ダー(16)とヘッダー(12)間には、低温用放熱器
である例えば周知の床暖房用パネル(18)を接続して
いると共に、低温ヘッダー(16)には上記床暖房用パ
ネル(18)とセットのコントローラ(19)にて開閉
制御をけう熱動弁(20)を装着している。Furthermore, downstream of the circulation pump (6), a low-temperature water circulation circuit (17) that returns from the chain portion to the header (12) via the low-temperature header (16) is branch-connected, and the low-temperature water circulation circuit (17) returns to the header (12) via the low-temperature header (16). (12), a low-temperature radiator, such as a well-known floor heating panel (18), is connected between the low-temperature header (16) and a controller ( 19) is equipped with a thermal valve (20) that is controlled to open and close.
尚上記コントローラ(19)と熱動弁(20)はセット
になっており、コントローラ(19)の増加に応じて熱
動弁(21)(22)を増加し、かつこの増加した熱動
弁にて開閉する接続管(23)(24)に各々上記床暖
房用パネル(18)等の負荷をII続して用いる。又こ
れらの熱動弁は、コントローラ(19)に設けた床暖房
用パネル(18)等の負荷の運転スイッチ(25)の運
転開始操作によって内蔵した図示しない弁を徐々に開く
様に成っている。Note that the controller (19) and the thermal valve (20) are a set, and as the number of controllers (19) increases, the number of thermal valves (21) and (22) increases, and the increased number of thermal valves A load such as the above-mentioned floor heating panel (18) is connected to the connecting pipes (23) and (24), which are opened and closed, respectively. In addition, these thermal valves are designed to gradually open built-in valves (not shown) by operating the operation switch (25) of a load such as a floor heating panel (18) provided in the controller (19) to start operation. .
(26)は上記熱交換器(3)の出口側温水温度を検出
するサーミスタ等から成る高温用温度検出器、(27)
は上記温水循環回路(13)の循環ポンプ(6)の少し
下流の温水温度を検出する同じくサーミスタ等から成る
低温用温度検出器、(28)は上記温水循環流路(13
)の熱交換器(3)下流と膨張タンク(7)上流とを短
絡するバイパス管である。(26) is a high temperature temperature detector consisting of a thermistor etc. that detects the hot water temperature on the outlet side of the heat exchanger (3); (27)
(28) is a low temperature temperature sensor which detects the hot water temperature slightly downstream of the circulation pump (6) of the hot water circulation circuit (13), and (28) is made of a thermistor or the like;
) is a bypass pipe that short-circuits the downstream of the heat exchanger (3) and the upstream of the expansion tank (7).
(29)は上記ガスバーナ(4)にガスを供給するガス
通路で、その上流側よl)電磁開閉弁(30)、ガス比
例弁(31)、電磁切換弁(32)を順次接続している
。(29) is a gas passage that supplies gas to the gas burner (4), and from its upstream side, an electromagnetic on-off valve (30), a gas proportional valve (31), and an electromagnetic switching valve (32) are connected in sequence. .
(33)はマイクロコンピュータを用いた制御回路で、
上記メインリモコン(34)又は上記コントローラ(1
9)に設けた運転スイッチ(35)(25)の運転開始
操作を検出すると、上記電磁開閉弁(30)、ガス比例
:# (31)、 を磁切換弁(32)を作動すると共
に、図示しない点火装置を作動してガスバーナ(4)を
点火し、かつ循環ポンプ(6)を回転して温水循環流路
(13)及び低温水循環流路(17)内の遁環水を加熱
制御するものである。(33) is a control circuit using a microcomputer,
The main remote control (34) or the controller (1)
When the operation start operation of the operation switch (35) (25) provided in 9) is detected, the electromagnetic on-off valve (30), gas proportional: # (31), and the magnetic switching valve (32) are activated, and the The ignition device that does not operate is activated to ignite the gas burner (4), and the circulation pump (6) is rotated to control the heating of the Tonkan water in the hot water circulation channel (13) and the low temperature water circulation channel (17). It is.
一方上記制御回路(33)は、メインリモコン(34)
の運転スイッチ(35)の操作により運転開始操作が行
われると、循環ポンプ(6)を作動すると共に電磁開閉
弁(30)等を開き、ガスバーナ(4)を強燃焼(例え
ば20.0OOK caj/h) I、、かつ熱動弁(
20)に通電してこれを開き始める。そして上記運転開
始により、高温用温度検出器(26)の検出による熱交
換器(3)の出口温度が第2図に示すC温度(例えば8
0℃)に達すると、比例弁(31)を制御してガスバー
ナ(4)の火力を強撚焼時の火力と弱燃焼時(例えば3
.600Kcatch)の火力の中位の火力(例えば9
.0OOK cal/h)にて燃焼制御する。On the other hand, the control circuit (33) is connected to the main remote controller (34).
When the operation start operation is performed by operating the operation switch (35), the circulation pump (6) is activated, the electromagnetic on-off valve (30), etc. h) I, and thermal valve (
20) and start opening it. Then, by starting the operation, the outlet temperature of the heat exchanger (3) as detected by the high temperature temperature detector (26) changes to C temperature (for example, 8
When the temperature reaches 0℃, the proportional valve (31) is controlled to change the thermal power of the gas burner (4) between the thermal power for strong twist firing and the thermal power for weak combustion (for example,
.. 600Kcatch) medium firepower (e.g. 9
.. Combustion is controlled at 0OOK cal/h).
次いでこの制御により上記出口温度が低下してC温度(
例えば67℃)に達すると、再びガスバーナ(4)を強
撚焼し、この強撚焼により出口温度が上昇して再びC温
度に達すると、今度はこのC温度を維持するように比例
制御を行うが、この比例制御を行っても出口温度がC温
度(例えば83℃)に達すると、上記電磁切換弁(32
)を閉じて弱燃焼(例えば、3.600 K ca l
/h )を行い、この弱燃焼においても出口温度が上
昇してC温度(例えば88℃)に達すると電磁開閉弁(
30)を閉じ、ガスバーナ(4)の燃焼を停止する。Next, this control lowers the outlet temperature to the C temperature (
For example, when the temperature reaches 67°C, the gas burner (4) is strongly twisted and fired again, and when the outlet temperature rises due to this strong twisting and reaches the C temperature again, proportional control is performed to maintain this C temperature. However, even if this proportional control is performed, when the outlet temperature reaches C temperature (for example, 83°C), the electromagnetic switching valve (32
) is closed for weak combustion (for example, 3.600 K cal
/h), and even in this weak combustion, when the outlet temperature rises and reaches C temperature (e.g. 88°C), the electromagnetic on-off valve (
30) and stop combustion of the gas burner (4).
そして上記燃焼停止により出口温度がb温度(例えば7
0℃)に低下するとガスバーナ(4)を弱燃焼し弱燃焼
により出口温度が上昇して上記C温度に達すれば再びガ
スバーナ(4)の燃焼を停止し、一方弱燃焼により出口
温度が低下してC温度に達すると強撚焼して以降これを
繰り返す。Then, due to the combustion stop mentioned above, the outlet temperature becomes b temperature (for example, 7
0℃), the gas burner (4) is weakly combusted, and the outlet temperature rises due to the weak combustion.When the temperature reaches the above C temperature, the combustion of the gas burner (4) is stopped again, and on the other hand, the outlet temperature decreases due to the weak combustion. When the temperature reaches C, strong twisting is performed and this process is repeated.
尚上記運転開始初期の中燃焼時には、通常負荷の温度が
低いため短時間でC温度迄温度低下するが、前回の運転
停止から余り時間が経過していない等の理由により、例
えば3分間経過してもC温度に低下しない場合には、強
制的に強撚焼を行って循環水温度の温度上昇の時間短縮
を計る。In addition, during the above-mentioned medium combustion at the beginning of operation, the temperature of the load is normally low, so the temperature drops to C temperature in a short time, but for some reason, for example, 3 minutes have elapsed due to reasons such as not much time having passed since the previous operation stop. If the temperature does not drop to C, forcefully perform strong twist firing to shorten the time it takes for the temperature of the circulating water to rise.
一方上記コントローラ(19)の運転スイッチ(25)
の操作により床暖房用パネル(18)が使用された場合
には、運転開始操作と同時に熱動弁(20)への通電を
開始すると共に、ガスバーナ(4)を点火燃焼し、これ
により上記高温用温度検出器(26)による熱交換器(
3)の出口温度が上記C温度に達すると、ガスバーナ(
4)の火力を上記と同様に中位に制御し、その後の燃焼
により上記出口温度が再びCに達すると、低温用温度検
出器(27)にて検出する戻り温水温度が例えば60℃
になるようにガスバーナ(4)の火力を調節する。尚こ
の制御においても第2図中のC温度が上記の例えば60
℃になる様に、C温度を例えば52℃、b温度を例えば
55℃、C温度を例えば63℃、C温度を例えば68℃
に設定して制御を行う。On the other hand, the operation switch (25) of the controller (19)
When the floor heating panel (18) is used by the above operation, the thermal valve (20) starts to be energized at the same time as the operation start operation, and the gas burner (4) is ignited and burned. heat exchanger (
When the outlet temperature of 3) reaches the above C temperature, the gas burner (
When the thermal power in step 4) is controlled to a medium level in the same way as above, and the outlet temperature reaches C again due to subsequent combustion, the return hot water temperature detected by the low temperature temperature detector (27) will be, for example, 60°C.
Adjust the firepower of the gas burner (4) so that In addition, in this control as well, the temperature C in FIG.
℃, the C temperature is, for example, 52℃, the b temperature is, for example, 55℃, the C temperature is, for example, 63℃, and the C temperature is, for example, 68℃.
control by setting it to .
更にト記コントローラ(19)の操作による戻り温水温
度による制御とメインリモコン(35)による運転操作
が同時に行ノ)れな場合には、メインリモコン(35)
による高温用温度検出!(26)の検出による出口温度
に基づく制御を優先して行う。Furthermore, if the return hot water temperature control by the controller (19) and the operation operation by the main remote controller (35) are not performed at the same time, the main remote controller (35)
Temperature detection for high temperatures! Control based on the outlet temperature detected in (26) is performed with priority.
又上記戻り温水温度による制御において、例えば強撚焼
においても温水温度が例えば50℃以下に低下した場合
には、上記戻り温水温度による制御を解除して高温用温
度検出!(26)の検出による温度制御(80℃を目標
とした制御)を行う。これはこのような場合は、例えば
熱動弁(21)(22)が追加運転される等負荷が急激
に増加し、熱交換器(3)を通過する流量が減少したに
も係わらず、ガスバーナ(4)を強撚焼する場合が多く
、この場合には熱交換器(3)内において沸騰音が生じ
易い為、これを防止するものである。In addition, in the control using the return hot water temperature, if the hot water temperature drops to, for example, 50°C or less even in strong twist firing, the control using the return hot water temperature is canceled and the high temperature temperature is detected! Temperature control (control with a target of 80° C.) is performed based on the detection of (26). In such a case, for example, when the load suddenly increases due to additional operation of the thermal valves (21) and (22), and even though the flow rate passing through the heat exchanger (3) decreases, the gas burner (4) is often strongly twisted and fired, and in this case, boiling noise is likely to occur in the heat exchanger (3), so this is to prevent this.
尚上記戻り温水温度の制御の途中から出口温度の制御に
切換えた場合には、切換え後においても低温用温度検出
器(27)により戻り温水温度を検出し、これが上記設
定温度の60℃に達した時点で再び戻り温水温度による
制御に戻す。In addition, when switching to outlet temperature control in the middle of the above return hot water temperature control, the return hot water temperature is detected by the low temperature temperature detector (27) even after the switch, and the return hot water temperature reaches the above set temperature of 60°C. At that point, the system returns to control based on the hot water temperature.
(ト)発明の効果
本発明の構成により、運転開始初期には熱交換器の出口
側温水温度が設定温度に達すると、ガスバーナを予め設
定した中火力にて燃焼制御する事で、運転開始時の負荷
が比較的少ない場合の熱交換器内部における沸騰を防止
して、沸騰音の発生を防ぐ事ができる。(g) Effects of the Invention According to the configuration of the present invention, when the hot water temperature on the outlet side of the heat exchanger reaches the set temperature at the beginning of operation, combustion control is performed on the gas burner at a preset medium heat power, so that at the beginning of operation It is possible to prevent boiling inside the heat exchanger when the load on the heat exchanger is relatively small, thereby preventing the generation of boiling noise.
第1図は本発明の概略構成図、第2図は同じく動作説明
用の特性図である。
(3)・・・熱交換器、(4)・・・ガスバーナ、(6
)・・・循環ポンプ、(11)・・・追焚用コイル、(
13)・・・温水循環回路、(14)・・・暖房用放熱
器、 (18)・・・床暖房用パネル、(26)・・・
高温用温度検出器、(27)・・・低温用温度検出器、
(33)・・・制御回路。
出願人 三洋電機株式会社外1名
代理人 弁理士 西計卓嗣(外2名)
第1図
第2図
a b cd e
(67”C) <70℃)(80℃)(83℃)(88
℃)(52℃) (55”C) (60℃)(63℃)
(68℃)−〉 温水温度FIG. 1 is a schematic configuration diagram of the present invention, and FIG. 2 is a characteristic diagram for explaining the operation. (3)...Heat exchanger, (4)...Gas burner, (6
)...Circulation pump, (11)...Reheating coil, (
13)... Hot water circulation circuit, (14)... Heat radiator, (18)... Floor heating panel, (26)...
Temperature detector for high temperature, (27)...temperature detector for low temperature,
(33)...Control circuit. Applicant: 1 other person from Sanyo Electric Co., Ltd. Representative: Patent attorney Takuji Nishikei (2 others) Figure 1 Figure 2 a b cd e (67”C) <70℃) (80℃) (83℃) (88
℃) (52℃) (55”C) (60℃) (63℃)
(68℃)−> Hot water temperature
Claims (1)
器に循環する温水循環流路と、上記熱交換器の出口側温
水温度を温度検出器にて検出し、この温度が設定温度に
なる様に、上記熱交換器を加熱するバーナの火力を比例
弁にて制御する制御手段とを備えたものにおいて、この
制御手段にて、運転開始時のみ上記熱交換器の出口側温
水温度がバーナを最大火力にて燃焼する予め設定した設
定温度に達すると、バーナを予め設定した所定の中火力
にて燃焼制御する事を特徴とする温水暖房装置。(1) A temperature sensor detects the temperature of the hot water circulation channel in which hot water heated by the heat exchanger is circulated to the radiator by the circulation pump and the temperature of the hot water on the outlet side of the heat exchanger, and this temperature is the set temperature. and control means for controlling the thermal power of the burner that heats the heat exchanger using a proportional valve, and the control means controls the hot water temperature at the outlet side of the heat exchanger only at the start of operation. A hot water heating device characterized in that when the burner reaches a preset set temperature at which the burner burns at maximum heat power, the burner is controlled to burn at a predetermined medium heat power set in advance.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7693089A JP2527610B2 (en) | 1989-03-28 | 1989-03-28 | Hot water heating system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7693089A JP2527610B2 (en) | 1989-03-28 | 1989-03-28 | Hot water heating system |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH02254230A true JPH02254230A (en) | 1990-10-15 |
JP2527610B2 JP2527610B2 (en) | 1996-08-28 |
Family
ID=13619443
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7693089A Expired - Lifetime JP2527610B2 (en) | 1989-03-28 | 1989-03-28 | Hot water heating system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2527610B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105135664A (en) * | 2015-10-09 | 2015-12-09 | 邝继伍 | Electromagnetic water heater |
JP2019199987A (en) * | 2018-05-16 | 2019-11-21 | リンナイ株式会社 | Composite heat source machine |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4910441A (en) * | 1972-06-01 | 1974-01-29 | ||
JPS5932736A (en) * | 1982-08-19 | 1984-02-22 | Sanyo Electric Co Ltd | Control device of hot water heater |
-
1989
- 1989-03-28 JP JP7693089A patent/JP2527610B2/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4910441A (en) * | 1972-06-01 | 1974-01-29 | ||
JPS5932736A (en) * | 1982-08-19 | 1984-02-22 | Sanyo Electric Co Ltd | Control device of hot water heater |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105135664A (en) * | 2015-10-09 | 2015-12-09 | 邝继伍 | Electromagnetic water heater |
CN105135664B (en) * | 2015-10-09 | 2018-12-21 | 邝继伍 | A kind of electromagnet water heater |
JP2019199987A (en) * | 2018-05-16 | 2019-11-21 | リンナイ株式会社 | Composite heat source machine |
Also Published As
Publication number | Publication date |
---|---|
JP2527610B2 (en) | 1996-08-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP3878476B2 (en) | Flow water heater | |
JP2001235144A (en) | Combustion device | |
JPH02254230A (en) | Hot water space heater | |
JPH01273927A (en) | Device for room heating with hot water | |
JP4002371B2 (en) | Bath device with water heater | |
JPS63238356A (en) | Hot water supplier | |
US4487361A (en) | Heat exchanger flame control | |
JP2505767Y2 (en) | Hot water heating system | |
JPH01277137A (en) | Temperature control device in hot water-circulating heater | |
JPS61184354A (en) | Hot-water temperature control device of hot-water supplied having after-burning function | |
JP2001108249A (en) | Hot water heater | |
JP7025742B2 (en) | Hot water heater | |
JP3658102B2 (en) | Water heater with anti-freezing function | |
JPH0436548A (en) | Space heater | |
JP3098730B2 (en) | Water heater | |
JP3133701B2 (en) | Water heater | |
JP2567503B2 (en) | Fluid heating device | |
JP2501050B2 (en) | Water heater with additional heating function | |
JP3465586B2 (en) | Hot water heating system | |
JPH0560333A (en) | Control device for hot water heater | |
JPH02213645A (en) | Instantaneous hot water boiler | |
JPH07239149A (en) | Bath heater equipment with how-water heating function | |
JPH11182932A (en) | Hot-water supplier with heat preservation function | |
JPH05264048A (en) | Hot water type heating device | |
JP2001289504A (en) | One-can two-channel hot-water supplier for bath |