How do I determine the unit size needed for my space?Updated 8 hours ago

There are many factors to consider when determining the unit size for your space.

Begin by identifying the number of zones (rooms), as well as the size and ceiling height of each zone. Next, identify the number of windows, heat-generating appliances, and expected occupants. Determine the insulation amount as well.

Use our HVAC calculator to help determine the unit size needed for your space.

To determine the size of the system you need, identify the size of the room. Generally, we recommend:

Note: The recommendations displayed are for standard 8-foot ceilings. You can upsize for taller ceiling heights.

• 20 BTU per square foot for cooling-only applications.
• 25 BTU per square foot for heating and cooling.
• 30 BTU per square foot if you expect to use the unit as a main heat source in cold-climate areas, such as the northern United States and Canada.

Examples

A single bedroom, which is one zone, is the most basic application. You can select a 9,000 BTU system for rooms measuring between 100 and 350 square feet.

If you have multiple zones and cannot utilize ductwork, consider selecting a multi-zone system. Multi-zone systems enable you to have 5 air handlers indoor connected to 1 outdoor, efficiently utilizing the space.

For homes or offices with ducting in place, consider selecting ductable mini splits or standard central split ducted systems.