An economical air conditioner system for universal installation in utility vehicles (UTV) and other 12v applications is a fluid cooling system that may also be used for heating applications. The system is a sealed system wherein cooling fluids can include ice water, and the sealed system allows for improved ice retention. The sealed system may alternatively utilize a traditional coolant in the cooling system which provides for the ability to switch between “heat” and “cool” applications or functions using the same core in the system. The system includes a storage vessel, a pump, a fluid reservoir, and a heat exchanger installed within the storage vessel. The system is also operably connectable to a core for temperature selected and directed air flow.

Outdoor power equipment includes a frame supported by a plurality of wheels and an air heating system. The air heating system includes an air inlet, an air outlet, a heating device configured to heat the air between the air inlet and the air outlet, and an adjustable duct connector fixedly coupled to at least one of the air inlet and the air outlet. The adjustable duct connector includes a base plate, a ring arm slidably coupled to the base plate, and a handle rotatably coupled to the base plate and the ring arm. Rotation of the handle selectively transitions the ring arm between a first position proximate the handle and a second position arranged further from the handle. The adjustable duct connector further includes a locking mechanism configured to secure the ring arm in the first position and the second position.

Provided is a heating blower, comprising an air duct, a motor and a wind wheel arranged in the air duct, and a heating device arranged at a first air outlet of the air duct; the wind wheel is fixed to a rotating shaft of the motor; the heating device comprises a housing, an electric heater, a rotary assembly and an air deflector; the housing is sleeved on the first air outlet, forming an inner chamber, which comprises a first area facing directly to the first air outlet and a second area not facing directly to the first air outlet; the electric heater is arranged in one of the first area and the second area; one end of the air deflector is fixedly arranged on the rotary assembly, and the other end of the air deflector rotates with the rotary assembly between the first area and the second area, separating the first area and the second area, so that the first air outlet is communicated with one of the first area and the second area.

An air-conditioned booth for accommodating a small number of people. The air-conditioned booth includes a transparent wall structure extending from a base to a top and enclosing an interior space. The booth includes a duct system and connected air conditioner for cooling air and directing the cooled air into the interior space of the booth. A damper system is operatively connected with the duct system and is positionable to place the booth in a non-cooling mode and a cooling mode. Air cooled by the air conditioner is directed to the ambient air surrounding the booth by the damper system when the booth is in the non-cooling mode and air cooled by the air conditioner is directed into the interior space of the booth when the booth is in the cooling mode. A vending unit is operatively connected to the damper system and controls the damper system.

A combination cooling and heating fan structure includes an electronic device for controlling a driving device to drive a fan blade assembly to rotate within a first rotational speed range and thereby cause cold convection when the driving device is started alone. The electronic device includes a limiting module for limiting the driving device to rotate within a second rotational speed range, which is smaller than the first rotational speed range, when the driving device and a heating device are started at the same time. That is, when the driving device and the heating device are started simultaneously, the limiting module limits the driving device to rotate within the second rotational speed range for the fan blade assembly to blow hot air through an indoor environment and cause heat convection, which increases the temperature of the indoor environment while preventing quick loss of thermal energy during the heat convection.

A fan assembly comprising an air inlet, at least one air outlet, an impeller, a motor for rotating the impeller to draw air through the air inlet, at least one heater assembly, and a user interface for allowing a user to select a speed setting for the motor from a user selectable range of speed settings, and for allowing a user to select one of a first and second operational mode of the fan assembly. A rotational speed of the motor is set depending on the user selected speed setting, and is selected from a first range of values when the first operational mode of the fan assembly has been selected, and from at least one second range of values when the second operational mode of the fan assembly has been selected, with each value within each of the range of values being associated with a respective speed setting.

A heater for heating air includes an inlet, an outlet, and an air duct between the inlet and the outlet. A fan and a heating element are positioned in the air duct. A first temperature sensor is positioned at or near the inlet and configured to measure a first temperature of ambient air at the inlet. A second temperature sensor in positioned in the air duct and configured to measure a second temperature of heated air flowing through the air duct. The heater is configured to control heating power and fan speed based on measurements taken by the first and second temperature sensors.

The invention is directed to a heating fan (100) with an inner space (110) in which is arranged an air channel (810) which is partially made of plastic. An electric heating body (300) is arranged behind a fan (800) in an air flow direction (821). According to the invention, this fan is constructed such that a fan wheel (801) of a radial fan, which fan wheel (801) is contained in the fan (800), has two suction sides (805, 806) which are separated by a dividing wall (804). During operation, a first air flow (822) is sucked in from outside (1) through the first suction side (805) which is open to a first air inlet opening (221). The second suction side (806) is arranged in a fan space (111) of the heating fan (100) and is pneumatically connected to second air inlet openings (222). The fan is arranged in front of a ceramic heating element (301) of the electric heating body (300) so that the first air flow (822) and the second air flow (823) stream through the heating body (300).

First and second towers may discharge air. An airflow guide or converter may change a direction of the air discharged from the first tower and the second tower by moving a gate inside and outside of at least one of the first or second towers so as to block discharged air flowing forward and selectively facilitate an upward air flow. The airflow converter may include a guide motor to provide a driving force, the gate, which may reciprocate between the inside and the outside of the first and/or second towers; and a board guider connected to the gate to transmit a driving force of the guide motor to the gate as a linear motion force.

A portable pest eradication system 60, comprising a plurality of electrical cords 21a-e connected electrically to a plurality of the electric heating elements 65a-e, a circulation fan assembly 55, a programmable module 48 and a user interface for entering a treatment time and/or a target temperature for heating a particular room in a house or building. The portable pest eradication system 60 is designed to provide sufficient heat to reach the target temperature in a reasonable period of time to kill bedbugs, bedbug eggs, mold, ticks, bacteria, dust mites, scabies, cockroaches, body lice, fleas, and/or other pests.