Abstract: A hand vacuum cleaner with a finger grip area that is provided between a forward side of the handle and a rear side of the main body, and wherein the suction motor is positioned between the cyclone and the finger grip area and an axis that extends between the front of the cyclone and the handle extends through the suction motor.

Abstract: A surface cleaning apparatus is provided. The surface cleaning apparatus includes a dirt inlet, a rotatable brushing member, and a brush motor drivingly connected to the rotatable brushing member. The brush motor includes a plurality of field coils, a first motor sub-unit, a second motor sub-unit, and a motor controller. The first motor sub-unit includes a first rotor portion, a first stator portion, and a first field coil. The second motor sub-unit includes a second rotor portion, a second stator portion, and a second field coil. The first and second rotor portions are rotatable about a motor axis and are drivingly connected to the brushing member. The second motor sub-unit is axially spaced along the motor axis from the first motor sub-unit. The motor controller is operable to direct electric current through the plurality of field coils generating magnetic fields and driving rotation of the rotor portions.

Abstract: A surface cleaning apparatus has a cyclone including first and second opposed ends, a cyclone axis of rotation that intersects the first and second ends, an air inlet, an air outlet provided at the second end, and a cyclone sidewall extending between the first and second ends. The air outlet includes an outlet air permeable portion extending axially inwardly into the cyclone from the second end. The porous member has an axially inner end and an axial outer end located at the second end and the axial outer end is positioned at the cyclone sidewall.

Abstract: A hand vacuum cleaner comprises a cyclone, a conical pre-motor filter that is positioned rearward of the cyclone and a suction motor. The pre-motor filter has a front end that faces towards the cyclone air outlet. The conical pre-motor filter has an open interior volume, an outer surface, which is an upstream surface of the pre-motor filter, and an inner surface, which is a downstream surface of the pre-motor filter.

Abstract: A surface cleaning apparatus has a suction motor actuator that is actuatable to actuate the suction motor to operate in a low mode of operation and to operate in a high mode of operation. A first power pack provides a first level of on board power that is available to power the surface cleaning apparatus. A second power pack provides a second level of on board power is available to power the surface cleaning apparatus, the second level of on board power is greater than the first level of on board power. Each of the low and high modes of operation are enabled when the first power pack is provided to power the surface cleaning apparatus and when the second power pack is provided to power the surface cleaning apparatus. When the second power pack is provided to power the surface cleaning apparatus, an operating power level provided to the suction motor during at least one of the low and high modes of operation is increased.

Abstract: A reconfigurable upright vacuum cleaner has a portable surface cleaning unit removably mounted to an upper portion. The portable surface cleaning unit has a suction motor and an air treatment member. The air treatment member is removably mounted to the portable surface cleaning unit and secured in position by an air treatment member lock. The portable surface cleaning unit is secured in position by a portable surface cleaning unit lock. When the portable surface cleaning unit is mounted to the upper portion and the upper portion is in the storage position, the portable surface cleaning unit actuator is provided on an upper end of the portable surface cleaning unit and the air treatment member release actuator is provided on an upper end of the air treatment member.

Abstract: A vacuum cleaner has an upright support structure pivotally mounted to a cleaning head. A portable surface cleaning unit is removably mounted to the upright support structure. The portable surface cleaning unit has a cyclone chamber, a dirt collection chamber exterior to the cyclone chamber and a suction motor. When the portable surface cleaning unit is mounted to the upright support structure and the upright support structure extends upwardly from the cleaning head, the upper end wall of the dirt collection chamber and the cyclone chamber end wall are an openable upper wall of the portable surface cleaning unit.

Abstract: A surface cleaning apparatus has a surface cleaning head having a pivoting connector, an upper end of the pivoting connector providing an air outlet of the surface cleaning head. A support consisting of an upflow duct is pivotally mounted to the surface cleaning head by the pivoting connector. A surface cleaning unit is vertically removably mounted to an upper end of the support. The surface cleaning unit comprises a cyclone unit, a pre-motor filter, a suction motor and flexible hose.

Abstract: A cooking appliance including a combustion zone and a cooking zone. The combustion zone has a combustion zone air flow path extending from a combustion zone air inlet to a combustion zone air outlet. The cooking zone overlies the combustion zone, and the cooking zone includes a closed cooking volume having a cooking surface and an openable lid. Combustion products produced in the combustion zone are isolated from the closed cooking volume.

Abstract: A cooking appliance has a combustion zone air flow path which includes a combustion zone. A first cooking zone is positioned in thermal communication with the combustion zone. During operation of the cooking appliance, combustion products produced in the combustion zone indirectly heat air whereby heated air is produced that is then introduced into the combustion zone and/or the first cooking zone.

Abstract: A hand vacuum cleaner has a cyclonic stage comprising an openable front wall provided at the front end of the cyclonic stage. A pre-motor filter is positioned in the air flow passage downstream from the cyclone air outlet and rearward of the cyclone sidewall. The pre-motor filter has a diameter in a direction transverse to the cyclone axis that is larger than a diameter of the cyclone air outlet in the direction transverse to the cyclone axis. The pre-motor filter has an outer perimeter defining a volume and the cyclone axis and the motor axis each extend through a centre of the volume. The cyclone axis is generally parallel to the motor axis. When the openable front wall is opened, the front end of the cyclone stage is opened and has an opening, the opening has a diameter in the direction transverse to the cyclone axis, and the rear end of the cyclonic stage has a diameter that is generally equal to the diameter of the opening.

Abstract: A surface cleaning apparatus has a cyclone chamber having a longitudinal cyclone axis of rotation wherein the dirt outlet is defined by a gap between the sidewall of the cyclone and a plate positioned at the dirt outlet end of the cyclone.

Abstract: A method of cleaning a floor comprises providing an autonomous surface cleaning apparatus, positioning a plurality of docking stations at different locations on the floor wherein a first docking station has an absence of an evacuation mechanism and actuating the autonomous surface cleaning apparatus whereby the autonomous surface cleaning apparatus travels across the floor to clean at least a portion of the floor and recharges at the first docking station.

Abstract: An arrangement of multiple environmental control systems for a multi-unit structure has a first environmental control system installed in a first unit, a second environmental control system installed in a second unit, a system monitor in communication with each of the environmental control systems and a firewall. Each environmental control system has a control unit coupled to the system monitor through the firewall that prevents unauthorized devices from accessing the respective control unit and a HVAC system device coupled to the respective control unit through the firewall. For each unit, a local user device that is located inside the unit is coupled to the control unit through a local communication interface, and an external user device that is located outside the unit communicates with the control unit through the firewall.

Abstract: A hand vacuum cleaner has an air treatment member positioned in the air flow path downstream of a dirty air inlet. A motor and fan assembly produces an air flow through the air flow path. A handle is moveable between a first use position and a second use position.

Abstract: A surface cleaning apparatus comprises an air treatment chamber having a first end, an axially opposed second end, an axis extending between the first and second axially opposed ends and an axially extending air treatment chamber sidewall. The air treatment chamber air outlet is provided at the second opposed end and the first opposed end is moveably mounted between a closed position and an open position in which the air treatment chamber is open. The air treatment chamber has a stationary portion and an openable portion and the openable portion is moveably mounted between a closed position and an open position in which the air treatment chamber is open. When the openable portion is in the closed position, the openable portion and the stationery portion abut along peripheral edges that extend along a length of the air treatment chamber sidewall.

Abstract: A surface cleaning apparatus comprises an air flow path extending from a dirty air inlet to a clean air outlet with an air treatment member positioned in the air flow path. The air treatment member comprises a dirt collection region which has an openable door. A pre-motor filter is positioned downstream of the chamber and upstream of the suction motor and a suction motor is provided in the air flow path downstream of the chamber. The air flow path comprises a downstream portion extending from the pre-motor filter to the suction motor, and, during an emptying mode of operation, the openable door is opened and the downstream portion of the air flow path is closed.

Abstract: A portable surface cleaning apparatus has a main body and air treatment member assembly is removably mounted to the main body. The air treatment member assembly air outlet and/or the suction motor inlet end is provided at the lower end of the air treatment member assembly when the surface cleaning apparatus is located on a floor and a pre-motor filter underlies the air treatment member assembly and/or the suction motor.

Abstract: An HVAC system for a multi-unit building having a riser stack in flow communication with a single unit HVAC system. The single unit HVAC system has a first heat exchanger thermally connected to the riser stack, a second heat exchanger thermally connected to a fluid distribution system within the unit, and a closed loop fluid flow path extending between the first and second heat exchangers. The first heat exchanger exchanges heat between a riser stack fluid in the riser stack and the closed loop fluid in the closed loop fluid flow path and the second heat exchanger exchanges heat between the closed loop fluid and a distribution fluid of the fluid distribution system.

Abstract: An air cleaning system which produces an electric field through which people move is provided.