Abstract: A gas-fired burner wherein a back plate having at least one inlet tube is connected with respect to a flameholder plate having a plurality of ports. The flameholder plate and the back plate form a plenum. A plurality of mixing baffles are formed within the plenum and between the back plate and the flameholder plate. A radiation plate is also connected with respect to the flameholder plate, the radiation plate and flameholder plate forming a combustion chamber with at least one gas flow boundary serving as a heat radiating surface.

Abstract: In a flame ionization sensor type gas combustion control apparatus, the sensor is provided with a power supply which will increase the voltage as contamination build up occurs on the in-flame sensor electrode thereby keeping a constant sensor current and enabling the sensor to perform as intended even though insulative contaminant build up is present on the electrode.

Abstract: A gas-fired burner wherein a back plate having at least one inlet tube is connected with respect to a flameholder plate having a plurality of ports. The flameholder plate and the back plate form a plenum. A plurality of mixing baffles are formed within the plenum and between the back plate and the flameholder plate. A radiation plate is also connected with respect to the flameholder plate, the radiation plate and flameholder plate forming a combustion chamber with at least one gas flow boundary serving as a heat radiating surface.

Abstract: A common, side-wall, Category III or Category IV-vented gaseous fuel-fired furnace and gaseous fuel-fired water heater system having a gaseous fuel-fired furnace having a furnace combustion products exhaust, a gaseous fuel-fired water heater having a water heater combustion products exhaust, and a Category III or Category IV vent in communication with the furnace combustion products exhaust and the water heater combustion products exhaust for venting of the combustion products from the furnace and water heater.

Abstract: Apparatus and process for condensing furnace hot air humidification using aqueous condensate from flue gases generated by the thermal exchanger in the furnace as the primary aqueous input to the evaporator of a humidifier which, preferably, may be integral with the furnace or which may be retrofitted in the field. Use of the system of this invention provides long term reliability and low maintenance to furnace humidification systems.

Abstract: A connector arrangement for an electronic controller includes a plurality of insulation displacement terminals. The connector has a body portion and cover portion. The cover portion includes tabs which will force a wire onto the insulation displacement terminal so that electrical connectors are made. In one embodiment, the connector is connected to a standard phone cable which, in turn, terminates in a modular phone plug.

Abstract: A temperature compensation control system for stabilizing the temperature within a space as the amount of air being supplied to the space undergoes sudden changes, the space being supplied with supply air through a supply duct, the supply duct having a temperature controller located therein, the space also having a return/exhaust duct associated therewith for removing air from the space, the system including a temperature sensor for sensing the temperature of the space, an air changing sensor for sensing changes in the air supplied to the space, and a controller for controlling the temperature of the space in response to the temperature sensor and for overriding the temperature sensor in response to sudden changes in the air being supplied to the space, the overriding of the temperature sensor decaying in accordance with time.

Abstract: A demand limit control system for maintaining power consumption of loads within a building below an upper demand limit, the upper demand limit being separated from a lower demand limit by a deadband, the system having a power demand controller responsive to power consumption for providing a controller output signal ramping up when the power consumption is above the upper demand limit, remaining substantially constant when power consumption is between the upper and lower demand limits, and ramping down when the power consumption is below the lower demand limit, and a plurality of demand controlled loads each connected to the power demand controller and each responding to a different threshold value of the controller output signal such that each load is conditioned to turn off when the controller output signal is above the threshold and is conditioned to turn on when the controller output signal is below the threshold.

Abstract: A pneumatic condition sensing system for reducing the consumption of air supplied by a pneumatic source, the system having a bleed type pneumatic device for bleeding air from a branch line to atmosphere to control the pressure within the branch line in response to a sensed condition, an elongated restriction for connecting the bleed type device to the pneumatic source, the elongated restriction having an air conserving flow versus pressure relationship, and a controller connected to the branch line and responsive to the pressure therein for providing a control function usable in controlling a condition.