GB2165934A - Gas-fired space heater - Google Patents

Gas-fired space heater Download PDF

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Publication number
GB2165934A
GB2165934A GB08426797A GB8426797A GB2165934A GB 2165934 A GB2165934 A GB 2165934A GB 08426797 A GB08426797 A GB 08426797A GB 8426797 A GB8426797 A GB 8426797A GB 2165934 A GB2165934 A GB 2165934A
Authority
GB
United Kingdom
Prior art keywords
heater
caravan
air
space
gas
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB08426797A
Other versions
GB8426797D0 (en
Inventor
Arthur Chesworth
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.)
Robinson Willey Ltd
Original Assignee
Robinson Willey 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 Robinson Willey Ltd filed Critical Robinson Willey Ltd
Priority to GB08426797A priority Critical patent/GB2165934A/en
Publication of GB8426797D0 publication Critical patent/GB8426797D0/en
Publication of GB2165934A publication Critical patent/GB2165934A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
    • B60H1/2203—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from burners
    • B60H1/2212—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from burners arrangements of burners for heating air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00357—Air-conditioning arrangements specially adapted for particular vehicles
    • B60H1/00364—Air-conditioning arrangements specially adapted for particular vehicles for caravans or trailers
    • 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
    • F24H3/06—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators
    • F24H3/065—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators using fluid fuel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
    • B60H2001/2268—Constructional features
    • B60H2001/2293—Integration into other parts of a vehicle

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Central Heating Systems (AREA)

Abstract

A caravan or small dwelling (11) has an open space beneath it and a gas-fired space heater (13) mounted beneath the floor. Duct (19) has ends which are connected to open grills in the caravan floor so that air is drawn into the heater through one grill and heated air returned into the caravan through the other grill. A balanced flue (14) extends downwardly from the heater. <IMAGE>

Description

SPECIFICATION Gas-fired space heater This invention relates to gas-fired space heaters intended for caravans or small dwellings with limited interior space.
The invention provides a fan assisted gasfired space heater adapted to be mounted to the exterior of a caravan or small dwelling and having ducts for communicating with the interior of the caravan or small dwelling.
The heater may be adapted to be mounted beneath a floor of the caravan or small dwelling, with provision for air from said ducts to pass substantially horizontally through the heater. The heater may have a balanced flue, extending vertically downwardly into open air space. The heater may have a heat exchanger providing horizontal plates between which the said air passes to be heated. The fans assisting the flow are preferably located in the same horizontal plane as the horizontal plates of the heat exchanger so that the heater is flat, i.e. has a small vertical dimension of the order of 1 5 cms and long horizontal dimensions of the order of 50 cms.
The heater may be adapted to be fuelled by bottled gas.
A specific embodiment of the invention is shown in the accompanying drawings, in which: Figure 1 is a section through a caravan with a heating appliance, and Figure 2 is a perspective view of the heating appliance of Fig. 1 with part of the casing removed.
A caravan has side walls (11) and a floor (12) supported on wheels or other supports (not shown) so as to leave an air space beneath the floor. While certain parts of the air space are taken up by structural and wheel members, much of this space is unused normally.
As shown in Fig. 1, a fan-assisted gas-fired convection heater (13) is mounted beneath the floor of the caravan. The heater has a balanced flue (14) extending downwardly therefrom to terminate in the air space. Combustion air is drawn in through the balanced flue by fan (15) to feed gas burners (not shown).
The exhaust fumes from the burners are directed through a heat exchanger (16) and out through the balanced flue. The operation of the combustion air fan (15) forces the exhaust fumes along this path, which normal convection could not do.
A rotary cylindrical fan (18) located beside the heat exchanger draws air in as described hereinafter, passes it over the heat exchanger (16) and then out into the space to be heated.
As seen in Fig. 1, the heater is located in a duct (19) beneath the caravan, each end of which opens into the floor of the caravan through a grill. Fan (18) draws air from the interior of the caravan through opening (20), and drives heated air into the caravan through opening (21). A limited ventilation air entry (22) in duct (19) allows fresh air to be entrained into the heated air stream. A filter is preferably incorporated into the entry (22).
It will be noted that the heated air movements through the heater are horizontal, i.e.
parallel to the caravan floor, and the heat exchanger plates also extend parallel to the caravan floor. The combusion air/exhaust flow path is generally upwardly and then downwardly. Clearly, therefore, it is essential that both heated air and combustion air are fan assisted. It will become clear that the heater can be located in many positions beneath the caravan floor, to suit the interior design of the caravan. The only interior space requirement of the heater is to allow for open grills for openings (20, 21). Since the arrangement of the heater provides horizontally extending heat exchanger plates and fans in the same plane, the heater has a smaller vertical dimension than its horizontal one and lies flat to the bottom of the caravan.
In an alternative arrangement (not shown) the duct (19) extends up into the caravan so that it can have vertical openings.
1. A gas-fired space heater adapted to be mounted to the exterior of a caravan or small dwelling, having ducts for conducting air from the interior, through the heater and back as heated air into the caravan or small dwelling, and fan means for driving the air through the ducts and heater.
2. A gas-fired space heater as claimed in claim 1, adapted to be mounted beneath the floor of a caravan or small dwelling, with provision for air from said ducts to pass substantially horizontally through the heater while being heated.
3. A gas-fired space heater as claimed in claim 2, having a balanced flue arranged to terminate beneath the floor of the caravan or small dwelling and a combustion air fan for drawing combustion air in through the flue.
4. A gas-fired space heater as claimed in any of claims 1 to 3, having a ventilation air entry whereby fresh air may be entrained into the heated air.
5. A gas-fired space heater as claimed in claim 3 or claim 4 as appendant to claim 3, wherein there is a heat exchanger comprising normally horizontal plates between which the air may pass, the said fans mean comprising a rotary cylindrical fan located on the same horizontal plane as the plates of the heat exchanger, and the balanced flue extending verti cally downwards.
6. A caravan having a gas-fired space heater as claimed in any of claims 1 to 5 and having openings in its floor providing entry and exit to the ducts of the space heater, the
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (1)

  1. **WARNING** start of CLMS field may overlap end of DESC **.
    SPECIFICATION Gas-fired space heater This invention relates to gas-fired space heaters intended for caravans or small dwellings with limited interior space.
    The invention provides a fan assisted gasfired space heater adapted to be mounted to the exterior of a caravan or small dwelling and having ducts for communicating with the interior of the caravan or small dwelling.
    The heater may be adapted to be mounted beneath a floor of the caravan or small dwelling, with provision for air from said ducts to pass substantially horizontally through the heater. The heater may have a balanced flue, extending vertically downwardly into open air space. The heater may have a heat exchanger providing horizontal plates between which the said air passes to be heated. The fans assisting the flow are preferably located in the same horizontal plane as the horizontal plates of the heat exchanger so that the heater is flat, i.e. has a small vertical dimension of the order of 1 5 cms and long horizontal dimensions of the order of 50 cms.
    The heater may be adapted to be fuelled by bottled gas.
    A specific embodiment of the invention is shown in the accompanying drawings, in which: Figure 1 is a section through a caravan with a heating appliance, and Figure 2 is a perspective view of the heating appliance of Fig. 1 with part of the casing removed.
    A caravan has side walls (11) and a floor (12) supported on wheels or other supports (not shown) so as to leave an air space beneath the floor. While certain parts of the air space are taken up by structural and wheel members, much of this space is unused normally.
    As shown in Fig. 1, a fan-assisted gas-fired convection heater (13) is mounted beneath the floor of the caravan. The heater has a balanced flue (14) extending downwardly therefrom to terminate in the air space. Combustion air is drawn in through the balanced flue by fan (15) to feed gas burners (not shown).
    The exhaust fumes from the burners are directed through a heat exchanger (16) and out through the balanced flue. The operation of the combustion air fan (15) forces the exhaust fumes along this path, which normal convection could not do.
    A rotary cylindrical fan (18) located beside the heat exchanger draws air in as described hereinafter, passes it over the heat exchanger (16) and then out into the space to be heated.
    As seen in Fig. 1, the heater is located in a duct (19) beneath the caravan, each end of which opens into the floor of the caravan through a grill. Fan (18) draws air from the interior of the caravan through opening (20), and drives heated air into the caravan through opening (21). A limited ventilation air entry (22) in duct (19) allows fresh air to be entrained into the heated air stream. A filter is preferably incorporated into the entry (22).
    It will be noted that the heated air movements through the heater are horizontal, i.e.
    parallel to the caravan floor, and the heat exchanger plates also extend parallel to the caravan floor. The combusion air/exhaust flow path is generally upwardly and then downwardly. Clearly, therefore, it is essential that both heated air and combustion air are fan assisted. It will become clear that the heater can be located in many positions beneath the caravan floor, to suit the interior design of the caravan. The only interior space requirement of the heater is to allow for open grills for openings (20, 21). Since the arrangement of the heater provides horizontally extending heat exchanger plates and fans in the same plane, the heater has a smaller vertical dimension than its horizontal one and lies flat to the bottom of the caravan.
    In an alternative arrangement (not shown) the duct (19) extends up into the caravan so that it can have vertical openings.
    1. A gas-fired space heater adapted to be mounted to the exterior of a caravan or small dwelling, having ducts for conducting air from the interior, through the heater and back as heated air into the caravan or small dwelling, and fan means for driving the air through the ducts and heater.
    2. A gas-fired space heater as claimed in claim 1, adapted to be mounted beneath the floor of a caravan or small dwelling, with provision for air from said ducts to pass substantially horizontally through the heater while being heated.
    3. A gas-fired space heater as claimed in claim 2, having a balanced flue arranged to terminate beneath the floor of the caravan or small dwelling and a combustion air fan for drawing combustion air in through the flue.
    4. A gas-fired space heater as claimed in any of claims 1 to 3, having a ventilation air entry whereby fresh air may be entrained into the heated air.
    5. A gas-fired space heater as claimed in claim 3 or claim 4 as appendant to claim 3, wherein there is a heat exchanger comprising normally horizontal plates between which the air may pass, the said fans mean comprising a rotary cylindrical fan located on the same horizontal plane as the plates of the heat exchanger, and the balanced flue extending verti cally downwards.
    6. A caravan having a gas-fired space heater as claimed in any of claims 1 to 5 and having openings in its floor providing entry and exit to the ducts of the space heater, the space heater lying flat closely adjacent the underside of the caravan.
    8. A gas-fired space heater substantially as described hereinbefore with reference to the accompanying drawings.
    9. A caravan having a gas-fired space heater substantially as described hereinbefore with reference to the accompanying drawings.
GB08426797A 1984-10-23 1984-10-23 Gas-fired space heater Withdrawn GB2165934A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08426797A GB2165934A (en) 1984-10-23 1984-10-23 Gas-fired space heater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08426797A GB2165934A (en) 1984-10-23 1984-10-23 Gas-fired space heater

Publications (2)

Publication Number Publication Date
GB8426797D0 GB8426797D0 (en) 1984-11-28
GB2165934A true GB2165934A (en) 1986-04-23

Family

ID=10568626

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08426797A Withdrawn GB2165934A (en) 1984-10-23 1984-10-23 Gas-fired space heater

Country Status (1)

Country Link
GB (1) GB2165934A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2219073B (en) * 1988-05-27 1992-06-24 Dennis Milne Haresign Apparatus for heating a substantially enclosed area
US5549745A (en) * 1994-10-28 1996-08-27 Indresco Inc. Non-slumping, pumpable castable and method of applying the same
WO1997015465A1 (en) * 1995-10-21 1997-05-01 J. Eberspächer Gmbh & Co. Arrangement of a heating device in a vehicle
WO2011045034A1 (en) * 2009-10-13 2011-04-21 Munster Simms Engineering Limited Utilities pod for caravans
WO2020038921A1 (en) * 2018-08-21 2020-02-27 Truma Gerätetechnik GmbH & Co. KG End line assembly for a heating device of a vehicle fit for habitation

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB562179A (en) * 1941-10-03 1944-06-21 Henry John Deneville Mccollum Improvements in systems for heating the interior of aeroplanes and the like
GB564103A (en) * 1943-02-08 1944-09-13 Jack Noakes Heating device for rooms and other enclosed spaces
GB1276655A (en) * 1968-09-17 1972-06-07 Walter Herbert Nelson Charman Mobile apparatus for supplying heated clean air

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB562179A (en) * 1941-10-03 1944-06-21 Henry John Deneville Mccollum Improvements in systems for heating the interior of aeroplanes and the like
GB564103A (en) * 1943-02-08 1944-09-13 Jack Noakes Heating device for rooms and other enclosed spaces
GB1276655A (en) * 1968-09-17 1972-06-07 Walter Herbert Nelson Charman Mobile apparatus for supplying heated clean air

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2219073B (en) * 1988-05-27 1992-06-24 Dennis Milne Haresign Apparatus for heating a substantially enclosed area
US5549745A (en) * 1994-10-28 1996-08-27 Indresco Inc. Non-slumping, pumpable castable and method of applying the same
WO1997015465A1 (en) * 1995-10-21 1997-05-01 J. Eberspächer Gmbh & Co. Arrangement of a heating device in a vehicle
WO2011045034A1 (en) * 2009-10-13 2011-04-21 Munster Simms Engineering Limited Utilities pod for caravans
GB2487029A (en) * 2009-10-13 2012-07-04 Munster Simms Eng Ltd Utilities pod for caravans
US9649995B2 (en) 2009-10-13 2017-05-16 Munster Simms Engineering Limited Utilities pod for caravans
WO2020038921A1 (en) * 2018-08-21 2020-02-27 Truma Gerätetechnik GmbH & Co. KG End line assembly for a heating device of a vehicle fit for habitation
AU2019323649B2 (en) * 2018-08-21 2021-09-30 Truma Gerätetechnik GmbH & Co. KG End line assembly for a heating device of a vehicle fit for habitation

Also Published As

Publication number Publication date
GB8426797D0 (en) 1984-11-28

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Legal Events

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WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)