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    Furnace cfm (2 Posts)

  • charliechicago charliechicago @ 12:35 PM
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    Furnace cfm

    Hello to all
    What is the rule of thumb/how do you calculate how much cfm you need for a furnace. Like we say 400 cfm for each ton of cooling.
    Thanks mike.
  • Big Ed Big Ed @ 2:29 PM
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    200 CFM's per 10K BTU's 80% plus ,150 CFM's per 10K BTU's 90% plus at a 55* rise
    I have enough experience to know , that I dont know it all
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