What Size Mini-Split System Do I Need?

Whether you have an addition to your home that seems to be a little hotter than the rest of the house or you’re simply searching for an efficient way to increase your home’s comfort, a mini-split system may be the choice. 

What’s a mini-split system? 
A mini-split system is a ductless form of heating and cooling that focuses on specific rooms and spaces, not an entire home or building. Mini-split systems are more adaptable and energy efficient than normal central air systems and are easy to install since there is no ductwork needed. They pump air right to wall or ceiling mounted air handling units that have their own wireless electronic temperature control systems. 

Mini-split systems aren’t one-size-fits-all, nor are they all produced equally, or for the same size room. Similar to normal air conditioners, a mini-split system should be sized to fit the space that it will be heating and cooling. Doing so could mean more efficient production for you, which may also mean savings on your normal energy bills as well. They’re normally used for: 

  • Hot and/or cold rooms 
  • Additions/renovations 
  • Enclosed patios 
  • Homes without room for ductwork 
  • Large, multi-zone living spaces 

Your local pros at Service Experts Heating & Air Conditioning are knowledgeable in mini-split system calculations and are able to provide you with specific products based on the size of space that you’re looking to heat and cool. 

A quick primer 
A mini-split system operates by using a process that only creates the amount of hot or cold air you desire to get to or maintain the temperature you choose. That being said, a appropriately sized system is still crucial to receive all of the efficiency benefits possible. 

Mini-split system sizing 
When it comes to determining size for a mini-split system, our experts recommends the ideal option for you as we do with all of our heating and cooling equipment. We work directly with you to decide your needs and measure the size of the space the system will be heating and cooling. A mini-split system that isn’t big enough will end up operating more often, meaning you’re wasting energy constantly. However, if your system is too big, you’ll probably be spending more on the system and run the risk of having your mini-split system turning on and off constantly. 

So, what does Service Experts Heating & Air Conditioning do to help you select the right size mini-split system? 

Among other things, our team of pros gathers: 

  • Room size (length, width, height) 
  • Age of your home 
  • Insulation levels 
  • Edmonton weather patterns 
  • Type and number of windows 

If you’re pondering a mini-split system for your Edmonton home, the experts at Service Experts Heating & Air Conditioning are able to help you every step of the way. Give our pros a call at 587-404-0790 or request an appointment with us online. 

Enjoy our blogs!

Keep checking back for more!

© 2025 Service Experts, Service Experts Heating & Air Conditioning, and the Service Experts logo and design are registered trademarks of Service Experts LLC and used under license by SE Canada Inc. All Rights Reserved. *Not applicable to the Advantage Program. See your signed Advantage Program Agreement for full details and exclusions. 100% Satisfaction Guarantee is subject to certain restrictions and limitations as set forth in the applicable Terms and Conditions.