What Size Should My Replacement Furnace Be?02/29/2016 What Size Should My Replacement Furnace Be? If you’re looking for a replacement furnace or will be shortly, you’ll need to figure out what size of system will work properly for your indoor space. Having an appropriately sized system is important to its efficiency and the comfort level of your indoor space. With a bit of research, you’ll find the perfect furnace for your needs. When replacing your system, bigger isn’t always the best. Your home will waste a lot of energy and money if you choose a system that is bigger than you need. A system that is too large 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 a decision you’ll want to dodge. Then there are the problems with a system that is smaller than you need. If your system is too small, it will run more frequently to try to heat your home, and it won’t be able to get the job done despite its exertion. A too-small system will work harder, which will shorten the system’s life span. Additionally, you’ll be paying higher energy bills for a home that’s not adequately heated. Have a professional, like those at Jett's Heating & Air Inc. do a load calculation and confer 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 figured based only on square footage. This method typically 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 take into consideration the climate in McHenry and how many people live in your home. This assessment is unquestionably much more thorough than coming up with a calculation based on square footage alone! If your HVAC system is properly sized it will keep you more comfortable and save you money. At Jett's Heating & Air Inc., we understand that buying a replacement furnace is a big decision. We are here to help you find the best system for your home. We’re simply a phone call away at 815-459-4700. You can also schedule an appointment with us online if that’s better for you. We look forward to helping you.