The Avenger is a condensing, forced draft, fire tube appliance utilizing a premix power burner based on a push through design which offers several venting options. Heat output is controlled by air/gas ratio control gas valves which provide seamless modulation. The Avenger provides central heating or domestic hot water at working pressures up to 160 PSI. It is designed for use with a pumped and pressurized system. The boiler/water heater will automatically modulate to provide heat outputs between 100% and the minimum input.


The Avenger models 1000-4000 use two automatic gas valves - one at the low end and one at the high end. The High-End Gas Valve works on the principle of differential pressure. Operation of the fan generates a differential air pressure, which the air/gas ratio control gas valve matches on the gas side. The steady state efficiency is maintained across the entire range of modulation. Air and gas are metered in precise proportion (1:1 Ratio) to modulation signal, allowing combustion characteristics, which determine efficiency, to remain the same over the entire operating range. The Low-End Gas Valve works on the principle of negative pressure.



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MJD Combustion Sales Inc. is the vision of its president Ray Bazini. With a team total of over 80 years of combined dedicated experience servicing the New York Metropolitan area, MJD Combustion Sales, Inc. has proudly built a business specializing in providing the best equipment and expertise for a complete boiler room solution.


We use an integrated approach to understand whole building design, performance issues, systems gaps and solutions. We consider end-to-end building-management systems, HVAC mechanical solutions, and renewable and sustainable remedies to optimize available resources. We address chronic energy issues facing existing buildings and retrofit them with long-term energy goals in mind.


Address: 514 Meacham Ave., Elmont, NY 11003

Phone: 516-327-4870


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