Abstract: A heating apparatus comprising a tank having a tank inlet, a tank outlet, a heat exchanger inlet and heat exchanger outlet. A heat exchanger is located in the tank and comprises a hollow body having a mouth coupled to the heat exchanger inlet and a flue outlet coupled to the heat exchanger outlet. A burner device has a burner head that is located at least partly located in the mouth inside said hollow body.

Abstract: A heating apparatus comprising a tank having a tank inlet, a tank outlet, a heat exchanger inlet and heat exchanger outlet. A heat exchanger is located in the tank and comprises a hollow body having a mouth coupled to the heat exchanger inlet and a flue outlet coupled to the heat exchanger outlet. A burner device has a burner head that is located at least partly located in the mouth inside said hollow body.

Abstract: A burner device (190) comprising an air intake, a burner head (192) including an ignition device, a body section (196) defining a fluid flow channel between said air intake and said burner head (192), and a gas injector (205) for injecting combustible gas into said fluid flow channel. The burner head (192) is oriented such that its longitudinal axis is substantially perpendicular to the plane in which the channel is defined and in which fluid flows, in use, along said channel.

Abstract: A hot and cold water delivery apparatus comprising a multi-channel hose for simultaneously carrying hot and cold water to a water delivery device such as the spray head of a shower. The preferred hose is formed from an extruded length of material with a longitudinally running dividing wall to create the channels. A shut off valve may be provided for selectably connecting the channels to a source of hot and cold water respectively.

Abstract: A diaphragm pump comprising a housing for receiving and securely holding a motor, the housing comprising an elongate portion having a closed end and an open end, the elongate portion being adapted to securely receive and house a motor; and a collar portion being provided at the open end of the elongate portion; a cover for the housing, the cover being adapted to engage with the housing; a diaphragm plate extending across the open end of the housing between the collar portion of the housing and the cover and being secured therebetween when the cover is engaged with the collar portion of the housing. The diaphragm pump also includes a wobble plate positioned within the collar portion of the housing.

Abstract: A utilities pod (10) for a vehicle, especially a caravan. The pod is removably mounted underneath the cabin structure and contains utilities apparatus such as a water heater, space heater (62), battery and water tank (60). The pod is connected to the cabin of the vehicle by an interface unit having multiple ports (18) by which said respective utility services are provided to the cabin. The interface unit is configured for installation in the floor of said cabin such that the ports are exposed to the interior of the cabin structure.

Abstract: An apparatus for heating air comprising an elongate body adapted to receive, or integrally formed with, one or more electrical heating elements in thermal contact therewith, said body comprising a plurality of heat exchange fins defining a plurality of axially extending flow passages therebetween for heating air flowing therethrough.

Abstract: A hot and cold water delivery apparatus comprising a multi-channel hose for simultaneously carrying hot and cold water to a water delivery device such as the spray head of a shower. The preferred hose is formed from an extruded length of material with a longitudinally running dividing wall to create the channels. A shut off valve may be provided for selectably connecting the channels to a source of hot and cold water respectively.

Abstract: A spray head holder (250) comprising an outer rim and a socket (252) for receiving a spray head. The socket defines an inner mouth (254) surrounded by the outer rim, the inner mouth (254) and outer rim being disposed in respective planes that are obliquely disposed with respect to one another. The longitudinal axis of the socket is obliquely disposed with respect to the plane in which said outer rim lies. A bevelled lip is provided around the outer rim. The spray head holder (250) is particularly suited for fitting to walls behind which space is restricted, for example the bulkhead of a boat.

Abstract: A straining device for a drainage pump, the straining device comprising a body defining an inner chamber; at least one straining element by which liquid may enter the chamber; and at least one outlet by which liquid may leave the chamber. The straining device further includes a liquid level sensor arranged to detect the level of a liquid in which said straining device is located during use and, upon determining that said liquid level exceeds a threshold, to cause an activation signal to be sent to said pump. The liquid level sensor comprises non-contact sensing means such as an electric field sensor. The sensor is located at the top of the straining device and arranged to project its sensing field upwardly.

Abstract: A diaphragm pump comprising a housing for receiving and securely holding a motor, the housing comprising an elongate portion having a closed end and an open end, the elongate portion being adapted to securely receive and house a motor; and a collar portion being provided at the open end of the elongate portion; a cover for the housing, the cover being adapted to engage with the housing; a diaphragm plate extending across the open end of the housing between the collar portion of the housing and the cover and being secured therebetween when the cover is engaged with the collar portion of the housing. The diaphragm pump also includes a wobble plate positioned within the collar portion of the housing.

Abstract: A liquid drainage system for a sanitary installation has a liquid level sensor for detecting the level of liquid in a drainage receptacle. The sensor employs non-contact sensing, for example an electric field, to detect the liquid level and controls the operating of a drainage pump depending on the detected liquid level. The drainage receptacle may for example be the gulley of a shower tray, or a manifold connected to two or more sinks.

Abstract: A quick attach and safe release arrangement for a pump of the type in which a pump chamber has at least one chimney and at least one separable port locatable in the at least one chimney. The quick attach and safe release arrangement is provided with a cooperating retaining elements integrally formed with the at least one chimney and integrally formed with the at least one separable port respectively, for retaining the at least one separable port in within the at least one chimney. The at least one separable port and the at least one chimney are rotatable relative to one another and the cooperating retaining elements have a single port release position at a predetermined angular position of the at least one separable port relative to the at least one chimney.

Abstract: A utilities pod (10) for a vehicle, especially a caravan. The pod is removably mounted underneath the cabin structure and contains utilities apparatus such as a water heater, space heater (62), battery and water tank (60). The pod is connected to the cabin of the vehicle by an interface unit having multiple ports (18) by which said respective utility services are provided to the cabin. The interface unit is configured for installation in the floor of said cabin such that the ports are exposed to the interior of the cabin structure.

Abstract: An apparatus for heating air comprising an elongate body adapted to receive, or integrally formed with, one or more electrical heating elements in thermal contact therewith, said body comprising a plurality of heat exchange fins defining a plurality of axially extending flow passages therebetween for heating air flowing therethrough.

Abstract: A liquid drainage system for a sanitary installation has a liquid level sensor for detecting the level of liquid in a drainage receptacle. The sensor employs non-contact sensing means, for example an electric field, to detect the liquid level and controls the operating of a drainage pump depending on the detected liquid level. The drainage receptacle may for example be the gulley of a shower tray, or a manifold connected to two or more sinks.

Abstract: A straining device for a drainage pump, the straining device comprising a body defining an inner chamber; at least one straining element by which liquid may enter the chamber; and at least one outlet by which liquid may leave the chamber. The straining device further includes a liquid level sensor arranged to detect the level of a liquid in which said straining device is located during use and, upon determining that said liquid level exceeds a threshold, to cause an activation signal to be sent to said pump. The liquid level sensor comprises non-contact sensing means such as an electric field sensor. The sensor is located at the top of the straining device and arranged to project its sensing field upwardly.

Abstract: A hot and cold water delivery apparatus comprising a multi-channel hose (12, 103) for simultaneously carrying hot and cold water to a water delivery device such as the spray head of a shower. The preferred hose (12, 103) is formed from an extruded length of material with a longitudinally running dividing wall (115) to create the channels. A shut off valve (500) may be provided for selectably connecting the channels, to a source of hot and cold water respectively.

Abstract: A spray head holder (250) comprising an outer rim and a socket (252) for receiving a spray head. The socket defines an inner mouth (254) surrounded by the outer rim, the inner mouth (254) and outer rim being disposed in respective planes that are obliquely disposed with respect to one another. The longitudinal axis of the socket is obliquely disposed with respect to the plane in which said outer rim lies. A bevelled lip is provided around the outer rim. The spray head holder (250) is particularly suited for fitting to walls behind which space is restricted, for example the bulkhead of a boat.

Abstract: A water outlet apparatus comprises a hand-held tubular wand in two co-axial rotatable parts in which at or towards the outer end of an outer part water outlet means is provided. A mixing/shut-off valve is housed in an inner end of the outer part. An inner part has secured therein one end of a hosing for delivery separately of two types of water, i.e. hot water and cold water, to the valve for mixing. The other end of the hosing is for integration into two separate sources of water. The water outlet means may be a series of nozzles radially of the outer part of the wand for use as a shower head.