A fluid heating system intended for use in recreational vehicles that circulates glycol in a system loop with various heat sources and other devices that distribute this heat to an enclosure or a domestic water system. It has a system controller operationally connected to a remove tactile display unit that allows for the input of the operation parameters to the system controller. The control unit is operatively connected for data and signal transfer to the user's cell phone via a non-internet connected localized wi-fi network. This provides the user with system status information, fault codes and allows selected operational functions and resets to be remotely initiated that heretofore required local manipulation. It also incorporates altimeter to allow the furnace controller to maximize its burn efficiency.

The invention relates to an end line assembly (10) for a heating device (30) of a vehicle (42) fit for habitation, in particular a caravan, motorhome or ship, comprising: at least one exhaust-gas pipe portion (16-1, 16-2) for leading away exhaust gases of an associated burner of the heating device (30); at least one combustion air pipe portion (18) for feeding combustion air to an associated burner of the heating device (30), the exhaust-gas pipe portion (16-1, 16-2) and the combustion air pipe portion (18) being parallel to one another and immovable in a sleeve portion (20), the outside (22) of which delimits the line assembly (10) with respect to the surroundings.

A heat exchanger unit, especially for a fuel-operated vehicle heater, with a heat exchanger housing (16) with an outer wall (24) and with an inner wall (30), wherein the outer wall (24) and the inner wall (30) define a heat carrier medium flow space (36), through which heat carrier medium (M) can flow, wherein at least one sensor mounting opening (42) is formed in the outer wall (24) and a sensor (40) is received in the at least one sensor mounting opening (42) in a fluid-tight manner and displaceably and protruding into the heat carrier medium flow space (36) with an area (50) protruding into the flow space and supported on the inner wall, wherein a prestressing element (52) acting on the sensor (40) for supporting it at the inner wall (30) is associated with the sensor (40), wherein the prestressing element (52) is fixed in a fixing area (54) in relation to an outer housing (58) enclosing the heat exchanger unit (22) in at least some areas and it acts on the sensor (40) in an action area (56) for support at the inner wall (30).

A process for manufacturing a cast metal heat exchanger housing (12) for a vehicle heater having a pot-shape housing wall (14) extending in a direction of a housing longitudinal axis (L) and having a plurality of heat transfer ribs (22) extending on an outer side of the housing wall (14) in the area of a circumferential wall (16) and in the area of a bottom wall (18) of the housing wall (14) in the direction of the housing longitudinal axis (L). The process includes metal casting wherein a sprue cross-sectional area including at least some of the heat transfer ribs (22). The cast metal heat exchanger housing has an axial end face formed upon cutting off metallic material that is essentially at right angles to the housing longitudinal axis and extends into an area of at least some of the heat transfer ribs.

A control system for a burner assembly used in vehicles and boats particularly for a coolant storage type heater and a method of operating the control system. Resistors for producing a resistance change as a function of temperature are utilised to send temperature signals to the control system from both the coolant and the potable water by being in contact with coolant and potable water throughout burner operation. The use of the thermistor signals together with the signals from aquastats allows flexible heater operation and may be dependent upon the user where commands can be entered in a touch screen connected to the control board of the control system.

A combustion chamber assembly unit for a fuel-operated vehicle heater is provided. The combustion chamber assembly includes a combustion chamber housing (12) with a combustion chamber (18), which is defined by a circumferential wall (14) and by a bottom area (16). An oxidation catalytic converter device (54), through which combustion waste gases can flow, is provided downstream in relation to the combustion chamber (18). The combustion chamber assembly further includes a hydrocarbon storage device (74) or/and a nitrogen storage device (76).

A vehicle temperature control system, for electric motor-powered vehicles or hybrid vehicles, includes a heater (18), which can be operated electrically or/and with fuel, with a first heat exchanger device (16) for transferring heat provided in the heater (18) to a first heat carrier medium provided in a first heat carrier medium circuit (12). An operating material tank (20) holds a liquid operating material (24). A second heat exchanger device (26) provides heat transfer between the first heat carrier medium provided in the first heat carrier medium circuit (12) and energy storage material (36) contained in the operating material tank (20). A third heat exchanger device (38) provides heat transfer between the first heat carrier medium provided in the first heat carrier medium circuit (12) and a second heat carrier medium provided in a second heat carrier medium circuit (40).

An evaporator assembly (10), in particular for a fuel-operated vehicle heater (12), comprising a pot-like evaporator reception (14), an evaporator body (16) inserted into the pot-like evaporator reception (14), a plate-like designed hold-down element (18), which is fixed to the evaporator reception (14) and fixes the evaporator body (16) in the evaporator reception (14), and wherein the plate-like designed hold-down element (18) has at least one retaining claw (22), which has an upper part (26) on an upper side (24) of the plate-like designed hold-down element (18) and a lower part (30) on a lower side (28) of the plate-like designed hold-down element (18), wherein the upper part (26) and the lower part (30) point away from the plate-like designed hold-down element (18).

An air conditioner for the air conditioning of the passenger compartment of a vehicle of the type provided with an internal combustion engine and with a tank adapted to contain a fuel for supplying the engine, includes an absorption refrigeration unit.

The absorption refrigeration unit includes a refrigeration circuit adapted to contain a fluid compound and has at least one evaporator arranged in thermal communication with the passenger compartment of the vehicle, and a burner supplied by the fuel contained in the tank of the vehicle, arranged in thermal communication with the refrigeration circuit and configured to heat the fluid compound so as to cause the evaporation of at least part of it by making it circulate in the refrigeration circuit toward the evaporator.

A vehicle temperature control system, especially for a hybrid vehicle, includes a first heat transfer medium circuit (12) including an internal combustion engine (16), a heater (18) and one or preferably a plurality of heat transfer areas (32, 34, 36) for transferring heat between a first heat transfer medium, circulating in the first heat transfer medium circuit (12), and a first group of system areas to be thermally treated. A second heat transfer medium circuit (14) includes a heat one or preferably a plurality of heat transfer areas for the transfer of heat between a second heat transfer medium, circulating in the second heat transfer medium circuit (14), and a second group of system areas (46, 48, 50) to be thermally treated. A heat transfer medium circuit heat exchanger unit (58) transfers heat between the first heat transfer medium and the second heat transfer medium.