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Blower Door

Blower Door

Blower Door

(OP)
If I'm going to install a new (boiler) in a home. How do I find out the estimated natural air changes per hour? Or is that needed for boiler installation? Please explain

Thanks

RE: Blower Door

Review your natural gas installation codes or fuel oil burning codes for ventilation/combustion air requirements.

Or use a direct vent appliance (combustion air directly connected to the burner) and don't worry about the space pressure effects on the combustion process.

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