If you're considering an upgrade to a ductless system, you'll need to take your home's cooling needs into account. The best ductless air conditioning systems are properly sized to fit the homes they cool, leading to improved energy efficiency and a longer effective lifespan. While there is no single answer to the question "What size mini split do I need?", there is a great way to go about getting that answer.
Every ductless split system installation project should begin with a full load calculation to assess your home's cooling needs. Your authorized Mitsubishi Electric contractor will come to your home and assess many determining factors, including layout, insulation and load-generating appliances in addition to square footage. Based on those results, your contractor will help you choose a ductless system that's perfect for your home.
Proper ductless air conditioner sizing is important for a host of reasons. An undersized system will not only cool your home insufficiently but also take additional wear and tear in the process, which can lead to serious efficiency and maintenance issues down the road. In other words, the system won't last as long and won't cool your home as well while it's still working. An over-sized system, meanwhile, will waste power and lower your energy efficiency.
Because improper sizing is such a common issue with standard systems, we strongly recommend getting a new load calculation for every installation project. Pulling sizing information from your existing system is problematic because your old air conditioner may not have been sized correctly in the first place, and even if it was, your home's cooling needs may have changed.
Conversely, a properly sized system will pay big dividends for you down the road. Perhaps the biggest advantage of going ductless is energy efficiency, and proper ductless heat pump sizing will maximize that efficiency advantage. A system that's built for your home will be able to seamlessly match your cooling needs in real time thanks to its variable speed compressor, lowering energy usage and maximizing comfort no matter how hot or cold the outside air becomes.
You're going to depend on your new ductless system to keep your home cool, and proper sizing will help that system provide plenty of highly efficient cooling for years to come. Our HVAC contractors are experts on all types of Mitsubishi Electric ductless air conditioning systems, and they'll take their time to assess your home's cooling needs and recommend a system that will meet those needs. If you're looking to upgrade your home climate control with a switch to a ductless system, we'll help you find the right contractor to get the job done well.