Energy savings calculator

Scope

Enter the total number of PTAC units installed in the buiding.

Same conditions applied to all units, total savings shown below.

Room

Room length (ft)

Room width (ft)

Ceiling height (ft)

Total window area (ft²)

Window area unknown If checked, window area = 10% of floor area (automatic).

Usage

Enter the average amount of people occupying the space.

Hours per day in winter The average number of hours per day the system operates in the heating mode during winter.

Hours per day in summer The average number of hours per day the system operates in the cooling mode during summer.

Indoor target temp – winter (°F) The desired indoor temperature set for heating during winter.

Indoor target temp – summer (°F) The desired indoor temperature set for cooling during summer.

Building Characteristics

Insulation quality The overall thermal insulation level of the building envelope.

Sun exposure The level of direct sunlight exposure affecting the building.

Location & Electricity Price

State

Nearest City

Property Use & Electricity Rate

Electricity rates vary by city and provider. Select your property type for a state-level estimate, or choose Manual to enter your exact rate.

Electricity Rate ($/kWh)

Your Current PTAC Setup

Select your current PTAC setup and compare with Nextac.

Cooling by non-inverter compressor and heating by electric resistance heater.

Non-inverter heat pump system.

Cooling EER I don't know Use instead the common value (EER = 7)

Nominal heating COP I don't know Use instead the common value (COP = 2.15)

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