what is the difference between smoke and dust of coal-fired boiler

The Difference Between Vertical Boiler And Horizontal ...

The gas consumption of the boiler is mainly determined by the boiler efficiency. In terms of cost the choice of vertical boiler or horizontal boiler is mainly based on the installation site. The small and narrow application of the site can choose vertical boiler spacious site can choose horizontal boiler.

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Types of Smoke Detectors and Their Differences

Feb 19 2019 · Heres what you need to know about both types and the distinctions between the two. Smoke Detectors 101 - Different Types of Detectors. Most homeowners don't know that smoke detectors come in two types: ionization smoke detectors and photoelectric smoke detectors. At this point you might wonder why anyone even bothers with knowing the difference.

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