When it comes to winter seasons, the day-to-day comfort depends on the performance and quality of the furnace system. Furnaces are an essential part of the home that needs regular maintenance and upgrades to sustain the longevity of the system. Whether replacing a furnace, wondering how to maintain a furnace, or just simply curious about how a heating system works, this is the ultimate guide.
Let’s take a look at everything a user needs to know about furnaces.
How a Furnace Works
First things first, how does a furnace operate? Simply explained, a furnace begins with the thermostat. Whatever desired temperature is set for a home, the thermostat will then detect when that temperature has dropped. From there, the thermostat signals the furnace to activate. The furnace will run until the temperature has reached the set comfort level.
There are different variants of furnaces, however, most homeowners commonly use either electricity or natural gas to warm the air.
Gas furnace
Perhaps the most critical part of the furnace, the heat exchanger gets hotter and hotter
For a gas furnace, when a thermostat triggers the furnace to turn on, a valve will open and supply fuel to the pilot light. The pilot light ignites, lighting the burners in the combustion chamber. This heats the heat exchanger. Perhaps the most critical part of the furnace, the heat exchanger gets hotter and hotter.
Once the air is heated up sufficiently, the air is moved into the plenum and exits through the supply ducts. From there, the air heats the home to the set temperature. Working parts of the gas furnace include the burner, heat exchanger, ductwork, ventilation pipes or flue, return ducts, air filter, blower motor, supply plenum, and hot surface ignitor.
electric furnace
For an electric furnace, the air is drawn into the furnace system and through a heat exchanger. From there, heating elements heat the air; the blower pushes the air into the home’s ductwork. The ductwork will then distribute air evenly throughout the areas of your home.
Working parts of the electric furnace include electric heating elements, air filter control, cold air return, air filter, blower, belt, motor, and ductwork.
4 Simple Ways to Maintain Furnace System
The longevity and performance of the furnace largely depend on regular maintenance. Air Rite can not stress enough the importance of keeping the system maintained. This prevents spiked utility bills and detrimental damages that’ll lead to replacing the furnace system long before the end of its lifespan.
Generally speaking, it recommends scheduling routine maintenance with an HVAC professional to get thorough inspections of the system. However, if users are looking for simple things that can be done on their own, the following are four ways to maintain the system easily between the annual furnace maintenance.
1) Replace Or Clean Air Filter
Cleaning or replacing the air filters to the furnace is a simple sure way to maintain the system
Whichever the system requires to run properly, cleaning or replacing the air filters to the furnace is a simple sure way to maintain the system. Although it may seem like a minor component of the unit, air filters serve the critical job of delivering warm air throughout the home.
Furnace filters are usually located where the return duct enters the furnace. Here, these filters work to remove contaminants from the air: bacteria, dust mites, pollen, pet dander, spores, particles, and many more. When air filters become dirty over time, this will block airflow causing the home to not heat effectively which means the system is straining to heat the home.
For standard air filters, Air-Rite recommends changing the air filters anywhere from 30 to 90 days. For more expensive disposable air filters, users may only need to change the system every three to six months. Take a look at the manufacturer’s recommendations or contact a certified technician to find out what’s best for the system.
2) Ensure All Household Vents Are Free
This is another simple but crucial component of maintaining the system. Remove furniture, boxes, and any other household items that may block household vents.
To warm the home, air must circulate throughout the system to work properly. If household items are blocking air vents, this impedes airflow, causing the system to overwork itself.
3) Inspect and Lubricate the Blower Motor
To prevent excess friction between the oil and the bushing of the blower motor, ensure the blower is lubricated
When maintaining the system, inspect and lubricate the blower motor. The blower is powered by an electric motor to propel heated air through the ductwork and into the home. To prevent excess friction between the oil and the bushing of the blower motor, it’s important to ensure that the blower is frequently lubricated.
In addition, inspect the blower belt for wear and tear. If the belt appears loose, tighten it by sliding the motor back. If the belt appears frayed, tethered, or damaged, contact an HVAC professional right away to get a blower motor replacement.
4) Check The Flue Pipe For Leaks
Inspect the flue pipe coming out the top of the furnace to make sure it’s venting properly. If the user discovers any holes in the flue pipe, patch small holes temporarily with foil tape and contact an HVAC professional right away. A flue pipe leak can release dangerous chemicals such as carbon monoxide, nitrogen dioxide, and sulfur dioxide.
A flue pipe can threaten the safety and wellbeing of the family. If the user does have a flue pipe leak, the family may experience the following:
- Headaches
- Nausea
- Dizziness
- Collapse
- Fatigue
- Heart palpitations
- Unconsciousness
Flue pipe leakage is dangerous and should be repaired immediately. If users suspect that they are experiencing this, speak with an HVAC technician as soon as possible.
What is the Cost of a Furnace?
So what’s the price tag on the furnace system? The cost of a furnace can depend on many variables such as local climate, location, unit type, size of the home, the brand of the unit, the quality of the install—the list goes on. For instance, the furnace installation may increase if the home needs extensive electrical or ductwork.
Also, depending on where users live, certain towns may need a permit for a furnace installation. This can vary in price from as little as $50 to hundreds of dollars. Also, keep in mind that an expectation may need to be completed by the municipality or city. It’s always best to check on the local bylaws.
Installation and performance
As a general rule of thumb, when purchasing a furnace, the cheapest option isn’t always the best. Cheaper furnaces are rather tempting. However, the furnace has a significant duty to maintain the family’s comfort within the home. Purchase a furnace worthwhile that’ll not only keep the user comfortable but save money in the long run on repairs, maintenance, and so forth.
This refers to the furnace installer as well. It’s super important that the furnace is installed properly to ensure the safety of their loved ones and maintain the system’s performance. Users will want a certified technician that not only installs the furnace to the highest standard but also can maintain it for years to come.
The Different Types of Furnaces
As discussed at the beginning of the article, there are a variety of furnace types: primarily natural gas and electric furnaces, but oil is another heating selection. Along with furnace type, users also have to consider whether they want a forced-air or radiant heating system. This manages how the heating system distributes heat throughout the home.
A common heating method, the forced air system pushes air through the ducts and vents that connect to a unit. Considered this a closed loop formula: heating is constantly being pulled and pushed from the home.
Radiant Heating Systems
Radiant heat systems have several variants and will rely on boilers to send heater water through a series of pipes to radiators
On the other hand, radiant heat systems may have several variants and will rely on boilers to send heater water through a series of pipes to radiators. Wherever the radiators or baseboards are installed is where they’ll provide heat. Radiant heating systems may also exchange heat to a floor through installed hot water tubing beneath the flooring surface.
For this article, however, Air-Rite discusses the different variants of forced air furnaces since this is the most popular choice out of the two. Forced air furnaces are also more eco-friendly. Following are the three most common heating systems: gas, electricity, and oil.
Gas
As the most popular furnace type, gas furnaces are the best solution for areas with harsher winter weather. Although gas furnaces have a higher initial cost than electric units, this cost equals out by having a lower monthly operating cost.
In addition, gas furnaces are more efficient and heat the home faster. Contrary to electric furnaces, a gas furnace will need additional maintenance, installation, and replacement costs. For instance, a gas system will need annual inspections, replacement filters, and ductwork cleaned regularly to perform to its best standard. A gas furnace’s general lifespan is around 15 years.
Electric
For those who don’t experience brutal winters, electric furnaces are the perfect solution. When compared to the gas furnace, the electric furnace will have the lowest upfront cost. However, due to the cost of electricity, this system will be more expensive to operate every month.
Along with a cheap initial cost comes the perks of low maintenance, meaning, it’ll be cheaper to maintain an electric system. Electric systems are fairly energy efficient and don’t require a lot of moving parts to operate, hence, the low maintenance cost. Generally, temperatures above freezing are good for these furnace types. Due to its relatively small size, furnace installations are mostly easy and won’t require special piping or venting. The average lifespan of an electric furnace is 15-20 years.
Oil
Oil furnaces are good choices for those who experience intense winter weather
Oil furnaces aren’t typically sought after due to their high fluctuating oil prices. On the bright side, oil furnaces are good choices for those who experience intense winter weather. Oil furnaces will require a storage tank, along with spacious accommodations, so you’ll have to consider additional install costs for this one.
With an oil furnace, there’s no monthly cost. Users instead only pay for oil when the storage tank needs refilling. Depending on the tank, this purchase will occur quarterly, semi-annually, or maybe even annually if users have a high-quality storage tank.
Keep Home in Quality Condition
With over 60 years in the industry, Air-Rite Heating and Cooling can maintain the quality of the home with its expert furnace repair, furnace installation, and in-depth knowledge regarding heating systems. Its team of certified experts will gladly answer any questions or concerns users may have about the system.
Air-Rite provides the finest in HVAC installation, maintenance, and repair across The Greater Chicago land area including Burr Ridge, Wheaton, Huntley, Aurora, Vernon Hills, Naperville, and more.