Sizing a New Heating System
When you’re ready to purchase a new heating system and have it installed by HVAC professionals, it’s essential that your new heating system is sized right. Surprisingly, multiple surveys show that more than half of all HVAC contractors practice incorrect sizing. AE Power Plumbing has always prioritized correct sizing with all of our clients, and that’s why you can trust the following tips for sizing a new heating system.
Why Does Sizing Matter?
When talking about sizing a new heating system, it’s common to hear references to Goldilocks – as in, you want a system that’s not too big, and not too small, but just right. In other words, a system that delivers optimum comfort and efficiency while keeping maintenance and operating costs low. Of course, getting a “just right” heating system involves more than just a contractor looking at the nameplate of your existing system and selling you a newer, similarly-sized model from the same brand. That’s the wrong way to approach the issue. So, what is the right way?
Proper Sizing of a New Heating System
Whenever a client calls to make an appointment for furnace installation near Countryside, the second question (after “how much will it cost?”) is usually, “What’s the best way to choose a new heating system?” The answer is, “Manual J” – as in, a manual published by the Air Conditioning Contractors of America (ACCA) which contains the most common, most accepted sizing method used today. The Manual J sizing solution takes many variables into account, including:
- Building materials
- Your home’s insulation
- How many windows your home has, and how much heat these windows allow into your house
- How many floors are in your home
- How many people live in your home and their ages
- Your home’s ceiling height(s)
- Your home’s orientation, which affects heat gain/loss through the windows
- Whether your home has a basement or a crawlspace
All of this information is plugged into the Manual J load calculation to determine the ideal heating system size for your home. A system that’s too big not only costs more to install, it also costs more to operate, and breaks down more frequently. A heating system that’s too small for your home will likewise operate at low efficiency, working extra hard to heat your entire house. And since a “too small” system is almost always in “on” mode, it too will break down faster than a heating system that’s sized right.
It Pays to Do Things Right
The Manual J calculation is easily the most detailed, time-consuming sizing method used today. But there’s no doubt that the wait is worth it. Don’t let any installer convince you it’s a good idea to estimate your heating system’s size based on your home’s square footage. There’s much more to it than that, which is why the Manual J approach is so popular.
Ready to work with the experts at AE Power Plumbing? Contact us today about boiler installation near Forest View. We’re happy to stop by and give you an estimate.