Standard four function calculator with square root and 9 memories
Instruction manual with examples is included.
Built-in formulas allow instant solutions:
Features:
| |  | Psychrometric formula - Solve for relative humidity after entering wet bulb temperature and dry bulb temperature
| | | Duct sizing formula - Solve for duct size in inches after entering friction loss and quantity of air or air velocity or enter duct size and solve for other quantities
| | | Infiltration formula - Solve for infiltration heating load factor after entering building volume, air changes and temperature difference
Fuel consumption formula - Solve for fuel used in cubic feet per year after entering heat loss, degree days, fuel efficiency of furnace, heating value of fuel, outside temperature and inside temperature or solve for heat loss after entering fuel consumed and otherquantities
| | | Rectangular duct to round duct conversion table.
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 | | PalmPilot Personal / Professional
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HVACcalc
