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Zhongzheng Boiler CO.; Ltd is a leading industrial horizontal boiler manufacturer and exporter in Henan Province, China .We produces 4 series of more than 200 kinds of products, which can provide high quality boiler equipment and services for customers in different fields. We produce oil and gas boilers, biomass boilers, coal-fired boilers, which can be used in many fields such as food industry, paper industry, textile industry, heating industry, power generation industry, etc.The industrial boiler are developed with technical advantages, stable and reliable performance, exported to over 100 countries.

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    • 94 commercial gas oil boiler | weil-mclain

      94 Commercial Gas Oil Boiler | Weil-McLain

      The 94 heavy-duty cast iron commercial boiler is specifically designed for easy installation and service. Available for hot water or steam. Learn more here.

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    • boiler efficiency calculator | most efficient boilers

      Boiler Efficiency Calculator | Most Efficient Boilers

      A boiler's 'energy efficiency' is the percentage of the total energy used by the boiler to provide useful heating. For a modern boiler with 94% efficiency, 94% of the energy used by the boiler goes to heating the home, only 6% is 'lost'/used to run itself. For a very old boiler with 60% efficiency, only 60% of the energy used by the boiler goes

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    • cast iron boilers | u.s. boiler company

      Cast Iron Boilers | U.S. Boiler Company

      Products

      Cast-Iron Performance

       · PDF file

      as the only high efficiency, cast-iron line of boilers to combine the efficiency of condensing gas-fired technology, with the strength, durability, and heat retention of cast-iron construction. Durable, rugged and long-lasting, cast-iron is the ideal material for condensing boiler systems that are built to last the long haul. CAST-IRON COMEBACK

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    • eutectic cast iron boilers

      EUTECTIC CAST IRON BOILERS

       · PDF file

      Efficiency A Symbol of Quality Engineering For Over Three Centuries CSA certified up to 96.5% Efficiency on Natural Gas and 94.5% on #2 Fuel Oil Fully Condensing Eutectic Cast Iron Boiler with Stainless Steel Ener-O-Mizer Up to 89°F differential temperatures with no Thermal Shock Firing rates of 3,700 to 8,190 MBH

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    • the ugly truth about cast iron boilers - energy kinetics

      The Ugly TRUTH About Cast Iron Boilers - Energy Kinetics

      Cast iron is basically steel with a high level of carbon impurities… and carbon doesn’t translate into longer boiler life.; Cast iron is a brittle material which can fracture under temperature shock. It’s well known that it is common for today’s cast iron boilers to have cracked sections, cracked burner doors, leaking gaskets, and leaking tankless coil flange.

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    • 94 commercial gas oil boiler | weil-mclain

      94 Commercial Gas Oil Boiler | Weil-McLain

      The 94 heavy-duty cast iron commercial boiler is specifically designed for easy installation and service. Available for hot water or steam. Learn more here.

      View More
    • boiler efficiency calculator | most efficient boilers

      Boiler Efficiency Calculator | Most Efficient Boilers

      A boiler's 'energy efficiency' is the percentage of the total energy used by the boiler to provide useful heating. For a modern boiler with 94% efficiency, 94% of the energy used by the boiler goes to heating the home, only 6% is 'lost'/used to run itself. For a very old boiler with 60% efficiency, only 60% of the energy used by the boiler goes

      View More
    • eutectic cast iron boilers

      EUTECTIC CAST IRON BOILERS

       · PDF file

      Efficiency A Symbol of Quality Engineering For Over Three Centuries CSA certified up to 96.5% Efficiency on Natural Gas and 94.5% on #2 Fuel Oil Fully Condensing Eutectic Cast Iron Boiler with Stainless Steel Ener-O-Mizer Up to 89°F differential temperatures with no Thermal Shock Firing rates of 3,700 to 8,190 MBH

      View More
    • cast-iron performance

      Cast-Iron Performance

       · PDF file

      as the only high efficiency, cast-iron line of boilers to combine the efficiency of condensing gas-fired technology, with the strength, durability, and heat retention of cast-iron construction. Durable, rugged and long-lasting, cast-iron is the ideal material for condensing boiler systems that are built to last the long haul. CAST-IRON COMEBACK

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    • zozen cast iron commercial boilers

      Zozen Cast Iron Commercial Boilers

       · PDF file

      The G315 and G515 come with a full 3½" of thermal insulation, and the G615 comes with a full 4" of thermal insulation to reduce standby heat loss. All Buderus cast iron commercial boilers are manufactured with the Buderus GL-180M cast iron with a silicone “barrier skin.”

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    • afue and real boiler efficiency | annual fuel utilization

      AFUE and Real Boiler Efficiency | Annual Fuel Utilization

      Typical boiler efficiency is routinely much lower than AFUE or combustion efficiency, especially for cast iron boilers or boilers with high “mass” and less than 2” of insulation, and for boilers that finish above 120°F when the thermostat is satisfied (AFUE rates boilers with a 120°F return temperature, but they typically run with a 160°F return and 180°F supply).

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    • consulting - specifying engineer | boilers: types

      Consulting - Specifying Engineer | Boilers: Types

      Provide automatic boiler isolation valves to allow non-required boilers to be isolated from the primary boiler loop. This works only for boilers capable of withstanding thermal shock. Do not use this on cast iron, straight water tube, or fire tube boilers without using the previously mentioned thermal shock prevention techniques.

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    • best high efficiency gas boilers review in january 2021

      Best High Efficiency Gas Boilers Review in January 2021

      29/12/2020 · High Efficiency vs. Standard Efficiency. Gas boilers with an efficiency rating of 80% to 84% are known as standard efficiency boilers. These gas boilers are equipped with cast iron heat exchangers and tend to vent using the chimney. Standard efficiency gas boilers usually have two types of venting systems – power vent or direct vent.

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    • is a high efficiency boiler worth it? — heating help: the wall

      Is a high efficiency boiler worth it? — Heating Help: The Wall

      That also adds efficiency to the system . Wait , we forgot that we have ODR which by the way is required on all boilers now as of Sept 2012 , that or thermal purge on units lower than 85% which ids also minimum AFUE . In short an 85% cast iron boiler will short cycle like …

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    • condensing vs traditional cast iron boiler? — heating help

      Condensing vs traditional cast iron boiler? — Heating Help

      When its 40 degrees outside the condensing boiler may only be firing at 40,000 btu/hr while your fixed rate cast iron boiler is firing to what it is.. "The bitter taste of a poor installation remains much longer than the sweet taste of the lowest price."

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