What Are the Disadvantages of Atmospheric Pressure Hot Water Boiler

What are the disadvantages of atmospheric pressure hot water boiler


Atmospheric pressure hot water boiler is a boiler without pressure,it is widely applied in building heating because of small investment and floor area of it.However, it also has some shortcomings inevitably,this text will analyze that in the following aspects for your reference:


The system of atmospheric pressure hot water boiler is complicated


The heating of atmospheric pressure hot water boiler needs to add auxiliary machineries,before entering the heating system,the hot water have to pass through many stages such as heat exchange,the whole system is more complex.Compared to the vacuum hot water boiler,the boiler proper of atmospheric pressure hot water boiler is cheaper than the vacuum hot water boiler’s,but,plus the price of auxiliary machineries,the atmospheric pressure hot water boiler is much expensive than vacuum hot water boiler.


The atmospheric pressure hot water boiler has a lower efficiency


The thermal efficiency of atmospheric pressure hot water boiler is generally only 82% or less,while the vacuum hot water boiler can reach 92%,the atmospheric pressure hot water boiler will produce scale in operation,so,its thermal efficiency will decrease year by year.


The atmospheric pressure hot water boiler have some restrictions on heating


The atmospheric pressure hot water boiler is only applicable to the heating of buildings below 7 layers,when used for more than 7 layers building heating, there are two options, one is increasing the circulating pump head to overcome the height of the buildings, another is increasing the heat exchanger and adopting the secondary water cycle scheme.


The service life of atmospheric pressure hot water boiler is short


In the above section,we have said that the atmospheric pressure hot water boiler will produce scale in operation,the scale will not only decrease the thermal efficiency of the system,but also shorten the service life the...