Matt, how does undersized or oversized equipment impact energy consumption and comfort levels?

In this edition of “HVAC Skill Builder,” Matt discusses why it's important to size your equipment properly for better energy consumption and comfort levels.

Matt, how does undersized or oversized equipment impact energy consumption and comfort levels? Oversized and undersized equipment is actually very common. Typically, we see systems that are grossly oversized with inadequate ductwork. However, if you have a system that is undersized for a home, you’re going to end up with system performance issues and comfort issues, namely by having that system run too long, where it cannot satisfy the thermostat for the sensible and latent loads. On the other side, if you have a system that is oversized, it’s going to short cycle, and it will not allow for the humidity to be removed out of the home, and you may get calls from your homeowner about comfort problems. So it’s very important when you’re going to install a system that you follow the entire design process, manuals, J, S, and D, and T, to ensure the equipment you’re putting in there is going to be sized correctly and ducted correctly so you don’t have these comfort issues.