What Size Should My Replacement Furnace Be?02/29/2016 What Size Should My Replacement Furnace Be? If it’s time for a replacement furnace or will be shortly, the first step is to figure out what size of system will work properly for your home. Having an appropriately sized system is key to its efficiency and the comfort level of your indoor space. With a little research, you’ll be able to find the perfect furnace for your needs. When replacing your system, bigger isn’t always ideal. You will waste a lot of energy and money if you install a system that is too large. A system that is too big won’t have to run as long, so it’ll be consistently cycling on and off, which can mean extra wear on your system and can lessen the life of your system. An oversized system will not only cost more money up front, but it will cost you more over time as well. This is an option you’ll want to avoid. Then there are the problems with a system that is smaller than necessary. If your system is too small, it will run too often to try to heat your space, and it won’t be able to get the job done despite its effort. A too-small system will work harder, which will shorten the system’s life span. Additionally, you’ll be paying higher heating bills for a home that’s not sufficiently heated. Have a professional, like those at iTemp Heating and Air Conditioning complete a load calculation and consult with you on the best system for your replacement furnace needs. How is Load Calculation Determined? In the past, a home’s load calculation was assumed based only on square footage. This method frequently lead to inaccurate calculations. With advancements in technology and increased knowledge, things are much more precise today. Your furnace professional will review your home as a whole, looking at things like its construction, the color of its roof and how well insulated it is. He or she will also consider the climate in Chicago and the number of people live in your home. This assessment is definitely much more thorough than coming up with a calculation created on square footage alone! If your HVAC system is correctly sized it will keep you more comfortable and save costs. At iTemp Heating and Air Conditioning, we understand that purchasing a replacement furnace is a big decision. We are here to help you determine the best system for your home. We’re only a phone call away at 773-704-0640. You can also schedule an appointment with us online if that’s better for you. We look forward to helping you.