Calculator

This is an all-purpose calculator that can be accessed when in any windows program. It performs simple and complex mathematical routines, including simple algebraic equations.

Units Convertor

Includes 100s of conversion units, including English-Metric conversions.

Duct Sizing

Sizes rectangular, round and oval duct based upon inputted cfms, pressures and velocities of air, ambient temperature and elevation. Duct weights can be determined based upon various gauge metals and duct lengths.

Life-Cycle Analysis

Calculates simple mortgage payments, simple cash flows, and simple paybacks based upon investment costs, interest rates, terms of the loan, and a number of additional inputs.

Psychrometrics

Simple Psychrometric: Calculates eight psychrometric characteristics based upon any two inputs.
Mixed Air Psychrometrics: Calculates the mixed air properties of two separate air streams with different psychrometric characteristics.

U-Value

Calculates U-Values and R-Factors for a number of wall and roof constructions.

Fan Curve Analysis

Calculates rpms, cfms, and static pressures for a variety of performance variables.

Fan Cost Analysis

Estimates fan operating costs for various fan types. It includes inputs such as power costs and air flow data.

General Pipe Sizing

Calculates pipe sizes for various schedule pipes and fluids. Inputs include pipe types, roughness factors, fluid densities and flow rates.

Gas Pipe Sizing

Calculates gas pipe sizing for both high and low pressure systems based upon a number of inputs including gas consumption, pressure loss, gas temperature, nominal pipe length and more.

Quick HVAC Loads

Quickly calculates a rule-of-thumb HVAC load for a residential or commercial facility based upon a minimum number of inputs.

Wire Sizing

Calculates equip-ment wire sizes by specifying the ampacity, circuit voltage, and other values.