A system for supporting a spa shell may include a structural support paddle. The paddle may include a base portion and a paddle portion, connected to each other through an articulating joint such as a ball-and-socket. The top side of the paddle portion may include one or more pieces of cushioning material, such as EPF foam. The structural paddle assembly may be placed between the base of the spa and the spa shell. Typically, 5 or more paddle assemblies are placed in a spa for support, such as in the lowest areas of the spa shell and/or concavities, or convexities, of the spa shell. Compared to typical large blocks of foam used to support a spa shell from beneath, the structural support paddles provided increased room below the spa shell for ease of maintenance and installation, and more directly controlled support.

Spa systems may be used all year round and in colder weather provide an enjoyable experience for users through the cold ambient outdoor temperature and the heated water of the spa. However, failures in respect of the water circulating pump and/or heater of the spa system either mechanically, electrically or through overall power outages mean the water in the spa system and its pipework can easily freeze if ambient conditions are cold enough leading to cracks in the spa system or pipes and hence leaks when the water thaws requiring costly repair or replacement of components or entire systems. Accordingly, a freeze protection system is provided that uses a backup thermal management system discretely or in combination with other backup systems. These freeze protection systems offering backup when mechanical failures, electrical failures etc. arise by providing thermal input to the spa system through alternate thermal paths and providing alarms.

The invention relates to a treatment apparatus comprising an envelope that can be placed on or around a body part of a person such that the envelope has a positioning area (Z) for said body part of the person, the envelope being provided with an inlet (8) for a gaseous medium and an outlet for discharging the gaseous medium present in the envelope. According to the invention, the apparatus comprises a control system (11) for controlling the flow of the gaseous medium in order to direct the gaseous medium entering the envelope via the inlet (8) outside the positioning area (Z), and to homogenise the gaseous medium present in the envelope.

A lift system for a spa cover includes a first lift assembly configured for coupling to a first side of a spa, the first lift assembly including a motor and a first lever arm, the first lever arm having a first end configured for driving connection to the motor, and a second end configured for operative connection to a spa cover, and a clutch assembly configured to transmit torque from the motor to the first lever arm, the clutch assembly including a drive plate rotatably driven by the motor, a clutch plate arranged parallel to the drive plate, and a plurality of projections extending from one of the drive plate and the clutch plate and being configured to engage a corresponding plurality of recesses in the other of the drive plate and the clutch plate.

Evaporator tray (100) for a sauna heater has one or more elongate plate members (102) extending across a support member (104). Support member (104) has at least two sides. In use, plate members (102) support rocks (not shown). Plate members (102) have a generally concave or hollow cross-section with a hollow face (106) upturned, which means they can collect unevaporated water, thereby protecting the sauna heater. The generally concave shape may be “V”-shaped, “U”-shaped, arcuate or concave, or any shape suitable for retaining water.

In one embodiment, the present invention includes an infrared apparatus to heat a body. The infrared apparatus includes layers. The first layer has a first conductive path coupled to pass a first current. The second layer has a second conductive path running coincident to the first conductive path. The second layer terminates an electric field produced within said first layer. The first conductive path includes a resistive element that produces heat from the current.

A roll-up spa cover for protecting and insulating an outdoor swim spa includes a multi-layer flexible insulation sheet structure is sized to at least cover a top of a spa and comprises at least two flexible layers. Support members may be attached to the plurality of support members in a parallel spaced relationship. Flexible rods can be removable located onto or into the support members to form an arcing framework over the support members. A rain fly may be overlaid on the flexible rods. The support members may include an angled aperture for receiving an end of the flexible rods and end caps may be provided over ends of the support members. The flexible rods are held in compression between the angled apertures and/or the end caps.

A sealing device for a foot therapeutic apparatus includes an airtight sleeve and a sealing member. The airtight sleeve includes a treatment box connecting end and a limb inlet end. The sealing member is fixedly mounted at the limb inlet end. The sealing member includes a tightening band and an annular gas bag located on the outer periphery of the tightening band. The annular gas bag is connected to a gas source. A foot therapeutic apparatus with the sealing device includes a treatment chamber and an electrical chamber. The treatment chamber comprises a treatment box, and the sealing device is arranged on the treatment box. A box opening is arranged at a top of the treatment box, and the treatment box connecting end of the airtight sleeve of the sealing device is hermetically connected to the box opening.

A method of manufacturing a spa including molding a plurality of side walls, cutting utility openings in said side walls, thereby producing cutouts which are then secured to the side wall and cover at least a part of the utility opening. The cutouts may cover the same utility opening from which it stems or a different utility opening from the same side wall or different side wall. The side walls may be made integral to the basin, such as in rotomolded spas, or made separate from the basin. Certain cutouts are rotated so as to have a major dimension of the cutout cover a minor dimension of the utility opening. Certain cutouts are trimmed from their initial size so as to cover a utility opening smaller than the utility opening from which it stems.

A lift system for a spa cover includes a fist lift assembly associated with a first side of a spa, and a second lift assembly associated with an opposed, second side of the spa. The first lift assembly includes a motor for applying an uncovering force to a spa cover. The second lift assembly includes a compression spring exerting a generally downward force on the cover when the cover is in the closed position, and a generally upwards force on the cover when the cover is moved towards an open position to assist in an uncovering operation. The second lift assembly also includes a tension spring configured to exert an upward force on the cover when the cover is in the open position to assist the first lift assembly in a covering operation.