Multiple Story Building HVAC

First-pass trade studies determining the heating or cooling loads for a mulpile story building. Intended for preliminary sizing and sensitivity analysis.

Details (inputs, outputs, assumptions) Read once

Model summary

Inputs: Number of stories (up to 3). Building size. Windows and doors and their locations. Wind direction and speed. Wall insulation options. Attic insulation.

Temperatures: Ground temperature and outside air temperature.

Solar: day or night conditions. Sun latitude.

Insulation: Each wall can have a specific insulation. Roof material can be specified.

Furnace Efficiency: The furnace efficiency can be selected for total heat or cooling load estimation.

Outputs: Building heating or cooling load.

Use case: quick what-ifs, sensitivity, and early sizing—not detailed CFD.

Examples

Example of a finned heat sink in a plenum with a fan.

Excellent of Preliminary estimates only. See Terms.