A gas furnace keeps your home heated and feeling great during cold Illinois winters. If you’re moving into a new home or replacing an old furnace with a new gas one, ensure the furnace works with your home’s electrical capabilities. Leith Heating & Cooling provides quality AC repair in St Charles, IL, and has provided guidelines to ensure you understand gas furnace electrical requirements.
Gas Furnaces and Electricity
Some St. Charles residents seem surprised when they need to consider electrical requirements for a gas furnace. They understand that electricity powers the blower motor, the circuit board, the relay switch, and the igniter. The furnace wiring box needs electricity because if that box doesn’t work, you can’t even control the settings on the furnace.
Despite these electrical needs, they don’t think about a furnace needing to meet electrical standards because a gas furnace doesn’t use that much electricity. We can’t tell you how often clients have asked us, “The heat comes from gas, so that’s what matters most, right?” Wrong.
This is not how electrical wiring and requirements work. The furnace uses electricity, so the electrical requirements matter.
Don’t waste energy and increase your heating bill or put your family at risk because the electrical requirements don’t match.
Gas Furnace Electrical Requirements for St. Charles Homeowners
Follow these gas furnace electrical requirements to heat your home safely and efficiently with a gas furnace.
The Unit and Circuit Breaker Size
Every furnace has a certain power consumption and an output voltage classification. The furnace’s power consumption and the output voltage classification determine the circuit breaker size. Some gas furnaces require more than one circuit because of the gas furnace’s electrical requirements.
To determine what your new furnace needs, do the following.
- Consult the manufacturer’s guidelines. They should cover the unit’s electrical requirements. It should also state the circuit breaker size requirements.
- Determine the amp rating. This determines how much current keeps the furnace functioning safely. Manufacturers often put this on the nameplate or include it in the paperwork.
- Figure out the amp size. Multiply the amp rating by 125%. This percentage covers power surges that might occur. This calculation won’t provide the number of a standard-sized furnace wiring box, so you need to round it up to fit one of those.
- Round it up to match a standard circuit breaker in your electrical panel. Common sizes include 15 amps, 20 amps, and 30 amps. Industry averages say that a 14-gauge wire goes with a 15-amp breaker, and a 12-gauge wire goes with a 20-amp breaker.
HVAC professionals factor in the insulation in your home and the St. Charles climate. The ability to do this comes with training, experience, and brand knowledge. When you use a professional team like Leith Heating & Cooling, you get a furnace installation that precisely meets gas furnace electrical requirements and suits your home.
Getting the Calculation Wrong
If you get the sizing wrong, you’re looking at the following negative outcomes:
- A cold house
- A unit that stresses itself to deliver the right heat output
- Out-of-control electric bills from too much energy use
The unit might function okay, but you didn’t install a new gas furnace to work at a so-so level. You want it to heat your house comfortably without wasting energy and increasing your carbon footprint or energy bill.
Bring in the Professionals
These are straightforward directions, but it is easy to miscalculate these guidelines because you’ve estimated the wrong figures or forgotten a step. And if you’re eager to see how the unit works or to get your home heated, that can cause you to err, too.
These possibilities show why you should avoid the temptation of a DIY installation. A lot of people think that doing the installation themselves saves money. This is not what HVAC teams see when working with clients who do this, and when we first encounter them, they’re often miserable because they went the DIY route.
Their lack of knowledge sometimes damages the new unit, and instead of saving them money, repairs cost more.
You might make such a mess you need to buy a whole new furnace before you even use the one you just bought. We’ve seen this firsthand.
If you consult with a professional HVAC team, they can determine the circuit breaker size that best suits your home heating preferences so you don’t make mistakes. Professionals also follow the current regulations for a gas furnace installation, guaranteeing a safe installation that doesn’t cost you money related to property damage or a reinstallation.
If there is an electrical outage in St. Charles, a professional installation will ensure that you have easy access to the service panel because experienced contractors know how to position the furnace for easy access. Many DIY installations get the placement wrong.
Always call the professionals to handle your gas furnace installation or any other furnace work you need.
Contact Leith Heating & Cooling for Gas Furnace Help in St. Charles
Leith Heating & Cooling is ready to install a gas furnace for your new home or upgrade. We understand gas furnace electrical requirements, and this makes our installation efficient and affordable. It prevents you from paying for the mistakes of a DIY project.
We can also install a two-stage furnace if you want your heating system to perform even more efficiently. Let us know your concerns. We can make recommendations on why this choice might work better for you. Our team will take the time to explain what is going on and what needs to happen so you’re informed to make decisions that work for your home instead of rushing to get the job done.
Our reviews show that our transparent pricing, furnace expertise, and friendly customer service make us the number one HVAC team in the St Charles area. Don’t hesitate to call — we will tell you what you need to know about gas furnace electrical requirements and other furnace needs.
Contact us at 847-851-8698 for your gas furnace maintenance, repair, or installation soon.