Installing central air conditioning is a major home improvement project that can significantly improve your home's comfort and value. While it's typically best to hire a professional HVAC contractor to handle the job, some homeowners may want to take on the challenge themselves. If you're considering a DIY central air conditioner installation calgary , here are some tips to help you get started. 1. Determine the right size The first step in any central air conditioning installation is to determine the right size for your home. A unit that's too small won't be able to cool your home effectively, while a unit that's too large will waste energy and money. To determine the right size for your home, you'll need to calculate the total square footage of your home and factor in other variables such as ceiling height, insulation, and sun exposure. You can use an online calculator or consult with an HVAC professional to determine the appropriate size of unit ...