PProjectlyst
Projectlyst / Home Systems

Home Systems Sizing Calculators

Use these free sizing calculators to estimate practical capacity ranges for moisture control, heating, humidification, and portable cooling. Choose the system you are sizing and verify the result against the manufacturer specifications.

Dehumidifier Size Calculator

Estimate an appropriate dehumidifier capacity range for a room or home.

Open calculator →

Garage Heater Size Calculator

Estimate garage heater output from space size and conditions.

Open calculator →

Humidifier Size Calculator

Estimate a suitable humidifier capacity range for a room or home.

Open calculator →

Portable AC BTU Calculator

Estimate the portable air conditioner BTU capacity needed for a room.

Open calculator →

Choose the right home systems calculator

Use the dehumidifier calculator when excess moisture is the problem, the humidifier calculator when indoor air is too dry, the garage heater calculator for heating an unconditioned or partially insulated garage, and the portable AC calculator for room cooling capacity.

Capacity depends on the space and conditions

Square footage is only part of equipment sizing. Moisture level, insulation, ceiling height, temperature difference, room exposure, and equipment rating methods can affect the practical capacity range. Projectlyst provides a planning estimate that should be checked against the final product specifications.

Planning guidance only. Verify room conditions, equipment ratings, installation requirements, manufacturer instructions, and applicable codes before use.