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what is the maximum turndown ratio

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pesy

pesy

Mechanical
Joined
Apr 12, 2000
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what is the maximum turndown ratio avaliable on a fully modulating natural gas burner? If you have an answer, do you know of a source (document) that states this?
 
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As far as I am concerned, Maximum turndown ration is the ratio between the full load output of for example, a burner of a boiler or a furance, and its lowest available part load output. Typical values can vary from 1:2 turndown ratio up to 1:8 depending on the size of the boiler and its inherent design characteristics.
 
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