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Barometric draft control7/13/2023 Should the draft fall more than 40% below the set point for more than 12 seconds, it will deactivate the appliances to prevent a potentially hazardous situation. The system monitors the draft condition at any time and has an integrated safety function. It will create and maintain a pre-set draft prior to or immediately after the appliance fires. The system is activated when there is a call for heat. The Chimney Automation System maintains a perfect, constant draft for the appliances by modulating the chimney fan capacity. It can be used in conjunction with almost any type of appliance and fuel, whether it is forced draft, atmospheric or condensing design. By controlling the draft completely, we can reduce the need for combustion air and can apply the system to virtually any stack design.ĮXHAUSTO’s Chimney Automation System (CASV) is for installation and use with multiple and/or modulating boilers and water heaters. The main objects of this invention are: First, to provide a. Today’s constant pressure chimney automation systems have the ability to control, monitor and maintain pre-set draft requirements by varying the flow. The MG-1 provides precise, accurate control of drafts at levels higher than permitted by a standard draft diverter, which is a frequent requirement with gas. This invention relates to improvements in barometric draft regulators and burner controls. Their design makes them rather inefficient and limits their application to certain types of chimney designs. The rudimentary mechanical draft assist is a single speed fan that delivers a pre-set volume of air and utilizes a barometric damper for relief should the mechanical draft become too strong. Fixed speed power vent systems also waste energy by not being able to adjust to actual conditions.Ī new system with pressure and flow control switches and a variable speed fan match vent needs to conditions minimizing energy losses. This leads to wasted energy and higher installation costs. Increase quantity for US Stove Vogelzang Barometric Draft Control. Gravity / barometric pressure systems must be over-sized in order to function in the worst conditions. Too much draft results in lost thermal energy from the boiler and higher electrical usage by the vent fan. The primary working part of such a device is. Boilers must maintain a proper flue draft for efficient combustion too little draft can result in condensation, CO formation, flue gas spillage, and soot formation. Barometric draft controls are designed to prevent excess draft and are usually installed in the stovepipe between the appliance and the chimney.
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