Embodiments relate generally to a heated towel rack that includes at least one lateral support, at least one forced air heating unit in fluid communication with a channel within a lateral support, and at least one cross bar coupled to the at least one lateral support. The at least one cross bar including at least one vent that traverses into a conduit within the cross bar. The channel is in fluid communication with the at least one vent by way of the conduit.

This concept is very new, and it will allow for safe and continuous operation of gas heating units when the induced draft fan no longer operates. This device will allow the HVAC service technician to continue to operate the gas heating unit until the proper replacement induced draft fan can be acquired and installed on the gas heating unit. This invention is a supplemental induced draft fan that will attach to the exhaust output side of a gas heating units inoperable induced draft fan to draft air through the heat exchanger and create a vacuum to the pressure switch at a rate to be regulated by a control switch to make the gas heating unit operate safely until the correct part is acquired and installed.

A system for controlling a combustion appliance based on one or more localized environmental factors and an inlet/exhaust system enclosed within a single enclosure. The control system includes an electrically controlled fuel valve, coupled to a source of combustion appliance fuel, and responsive to a fuel valve control signal, for controlling the flow of fuel to the appliance. An air pressure detector is disposed in an area proximate the combustion appliance and configured for detecting negative air pressure in the proximate area and in response for providing a negative air pressure detection signal to a relay which will deactivate the fuel valve until negative air pressure is not present thereby preventing operation of the combustion appliance. Further, if negative air pressure is detected, the relay energizers a makeup air device to bring an outside air into the area near the combustion appliance.

A method of controlling the temperature within a heating apparatus for eliminating or reducing combustion resonance, the method including measuring a temperature of the burner assembly; comparing the measured temperature with a predetermined temperature limit or range; determining whether the measured temperature is greater than a predetermined temperature limit or range; performing a controlled action if the measured temperature is greater than the predetermined temperature limit or range.

A forced airflow drying apparatus includes a body including a pair of air inlets to receive inlet air which is channeled to an upstream side of a filter unit, a pair of body airflow generators to generate a first forced airflow, each body airflow generator having a first end and a second end, where the first end of each body airflow generator is opened to a downstream side of the filter unit, a pair of thermoelectric devices configured to control a temperature of the first forced airflow, and a first air outlet, in communication with the second end of each body airflow generator, to receive the forced airflow from the body airflow generators and to expel the forced airflow out of the body. The forced airflow drying apparatus further includes a bar and a drive apparatus configured to movably drive the bar relative to the body, the bar including a second pair of airflow generators to generate a second forced airflow, a pair of resistance heaters to control a temperature of the second forced airflow prior to being expelled from the second air outlet, and a second air outlet to expel the second forced airflow from the bar.

A heating appliance has a multi-position control switch with a non-off lower than highest setting at an extreme distal position and consumes a non-off lower than highest amount of power at that position. The non-off lower setting is indicated as an energy saving setting. The switch has an off position at an extreme proximal position and the appliance consumes no power at that position. The switch has a highest setting position between the proximal and distal positions and the appliance consumes a highest amount of power at that position.

A flame sensor for a furnace of a heating, ventilation, and air conditioning (HVAC) system includes a sensor body and an electrically conductive member of the sensor body. The electrically conductive member is configured to be disposed within a flame region of a burner of the furnace and configured to receive electrical current from a controller of the furnace. The flame sensor also includes an anti-oxidation coating disposed on an outer surface of the electrically conductive member and configured to transmit the electrical current from the electrically conductive member. The anti-oxidation coating is configured to contact a flame produced by the burner and expose the electrical current to the flame.

A heater system includes a heater bundle. The heater bundle includes at least one heater assembly, where the heater assembly includes a plurality of heater units, and more than one of the heater units defines at least one independently controlled heating zone. The heater bundle includes a plurality of power conductors electrically connected to the independently controlled heating zone. The heater system includes means for determining temperature and at least one power switch, the power switch disposed proximate the heater bundle. The heater system includes at least one controller configured to modulate power to the independently controlled heating zones through the power conductors based on the determined temperature to provide a desired power output along a length of the heater assembly. The controller is configured to provide power to the power switch.

A mobile heating system includes an enclosure defining a plenum that houses a fan and an internal combustion engine. The heating system also includes a hydraulic circuit including a hydraulic pump operably coupled to the internal combustion engine and a first heat exchanger located in the plenum and in fluid communication with the hydraulic pump. The hydraulic circuit also includes a hydraulic motor operably coupled to the fan wherein the hydraulic motor is in fluid communication with and driven by the hydraulic pump. A first valve is disposed between the hydraulic pump and the heat exchanger and is configured to restrict fluid flow and to increase a fluid pumping pressure of the hydraulic pump. A second valve is located upstream of the first valve and is configured to selectively direct hydraulic fluid between the first valve and the hydraulic motor.

The present disclosure relates to a method for detecting an unusual condition of a gas appliance, and a water heating device. The method for detecting the unusual condition of the gas appliance equipped with a heat generator including a burner to which gas is supplied as a fuel includes a first step of obtaining a required heating value that the burner has to output to create a predetermined state, a second step of obtaining an indicated heating value corresponding to a control value transmitted to the heat generator for control of the heat generator in the predetermined state, and a third step of determining whether the gas is unusually used, based on the required heating value and the indicated heating value.