Effective September 2026. This site provides informational HVAC psychrometric estimates using the standard Tetens saturation-vapor-pressure formula and psychrometer equation.
Results are provided “as is” for planning, estimating, and educational purposes only, without warranty of any kind. Always verify critical or code-driven designs against ASHRAE Fundamentals, a licensed engineer, or manufacturer data before acting on them. We are not liable for decisions made from these estimates.
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