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Domestic hot water and heating series: gas hot water boiler, vacuum hot water boiler, vertical atmospheric pressure hot water boiler, electric hot water boiler Factory use, high temperature steam: wns fuel gas steam boiler, szs water tube steam boiler, vertical steam boiler, electric steam boiler

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FANGKUAI is founded in 1998, which is a clean fuel boiler enterprise integrating R&D, manufacturing, sales and service. In the past 20 years of development and innovation, the company has grown into a global enterprise, and its products have been exported to more than 80 countries including Russia, Mongolia and Thailand, and have established long-lasting cooperative relations with local enterprises!

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cast iron hot water boiler and radiator system efficiency

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HOT

θrion Gas Fired Steam Boiler

Capacity:1-20t/h

Rated thermal efficiency: 100-104%

Fixed working pressure: ≤1.6MPa

Applicable fuel:natural gas etc.

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HOT

Gas(oil) Fired Integrated Hot Water Boiler

Capacity:0.7-14MW

Rated thermal efficiency:96-98%

Fixed working pressure:≤1.25MPa

Applicable fuel:Natural gas, light oil, etc.

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HOT

H6 Gas Fired Hot Water Boiler

Capacity:0.7-2.8Mw

Rated thermal efficiency: 97.2-106%

Fixed working pressure:0.1MPa

Applicable fuel:Natural gas, etc.

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T7 Vacuum Hot Water Boilerr

Capacity:2.8-7.0Mw

Rated thermal efficiency:≥105.5%

Fixed working pressure:-0.02MPa

Applicable fuel:Natural gas, etc.

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HOT

V6 Gas Fired Hot Water Boiler

Capacity:99Kw

Rated thermal efficiency:97.2-104.4%

Fixed working pressure:1.0MPa

Applicable fuel:Natural gas, etc.

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HOT

Electric Steam Boiler

Capacity:0.5-4.0 t/h

Rated thermal efficiency:98%

Fixed working pressure:≤1.25MPa

Applicable fuel:electric energy

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  • Best Practices in Modern Hydronic Heating - AN OVERVIEW

    with cast-iron sectional boilers, and most fire tube boilers allows full system flow to pass through boiler. 0 5 10 15 20 25 0 2 4 6 8 10 12 pressure drop (psi) flow rate (gpm) 100,000 Btu/hr ! compact mod/con 100,000 Btu/hr ! cast-iron sectional VENT conventional boiler! with low flow resistance Conventional boilersGet Price

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    The system is two pipe with a 2" parallel setup in the basement. Each radiator is fed from the 2" by a pair of 1/2 to 3/4 lines. My contention is that the amount of cold water being returned to the boiler by the circulator on the return side is overwhelming the boiler. The efficiency of the boiler was written on a service tag years ago at 75%.Get Price

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    May 15, 2021 · Many older boiler heating systems are gravity systems and rely on the fact that steam naturally rises to the highest point in the system. Contemporary systems, on the other hand, circulate hot water through the pipes at a temperature between 180 and 190 degrees Fahrenheit, which reduces the amount of energy needed to heat the water but requires the …Get Price

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  • What are Combi Fault Codes? | Kombisan Energy Systems

    Make sure that the gas valve next to your boiler is open. Press the OK button 2 times on the Combi Panel, the problem is solved. 151E Fault Code: Combi control card failure. Check the ignition electrode position. Fault Code 155E: Exceeding the maximum reset attempt (n°5) Press the "RESET" button on the boiler.Get Price

  • Tips For A Successful Cast Iron Water Boiler Installation

    Jul 16, 2018 · You will need a minimum of a 20°F rise. If this is a large water volume system, like cast iron radiation, increase the ΔT through the boiler to 35 – 40°F ΔT. Quick Tip: If the bypass is hotter than the return pipe, the flow is backwards and you have piped a system bypass as opposed to a boiler bypass.Get Price

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    Answer (1 of 2): "Cast iron radiators typically operate at about 130 to 140F. "So, it made sense to go to a high-efficiency condensing boiler," a person added. A low-temperature system like this takes maximum advantage of modern condensing boiler technology. The demand for domestic hot water was Get Price

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    If the system could supply adequate heat with 140SWT on a design day, and lower on milder days, the mod con may run in 90% plus efficiencies most of the year. A conventional boiler, maybe mid to high 80%. You cannot "fool" or design that efficiency number higher in a non condensing boiler. Bob "hot rod" Rohr.Get Price

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    May 17, 2010 · Is installing a condensing modulating boiler w/ indirect hot water in an old home with cast iron radiators in Minneapolis still efficient if the house has old 2"+ dia. cast iron piping and cast iron radiators? I've read that if the water returning to the boiler isn't under a certain temperature the heat exchanger won't function efficiently.Get Price

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    Aug 13, 2015 · To raise the incoming water temperature from the ground temperature to 140°F, the boiler water has to be higher than 140°F. It may be 20°F higher than the domestic water temperature. If that is the case, the boiler water temperature will be at 160°F and the boiler efficiency will be around 84-86% efficient.Get Price

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