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Replacing Your Furnace: What You Need to Know

Reasons to Replace Your Furnace 

Most oil and gas furnaces last for 15 to 20 years. The efficiency of most furnaces dissipates over time due to wear, tear, and corrosion. Replacing an old furnace with a new unit can help homeowners increase the energy efficiency of their homes. The most common reasons your furnace will need replacing includes:

Outdated Unit

If your furnace's age is higher than 15 years, it's time to replace it. Furnaces running beyond 15 years typically have poor performance, inefficient heating, and high energy consumption. Some may require frequent repairs that increase their maintenance cost. It's typically more cost-efficient to just go ahead and replace the unit.

High Energy Bills

If your energy bills increase without a change in your routine, it could be due to a broken or outdated furnace. A new furnace might seem expensive, but the investment will pay for itself through lower energy bills, making your home more energy efficient.

Frequent Breakdowns

If your furnace experiences frequent breakdowns, it also then requires frequent repairs which can be more expensive than a new furnace altogether.

Benefits of Replacing Your Furnace 

Besides the upfront cost, there aren't any true disadvantages to a new furnace.

Better Air Flow

A modern heating system offers better airflow throughout the house. A high-efficiency furnace maintains a stable temperature and delivers more uniform heating to your rooms. In most cases, a new system with a low BTU rating offers better airflow than outdated ones. The improved airflow also minimizes mold growth and removes pollutants, resulting in better air quality for breathing.

Energy Efficiency

Heating systems older than 15 only offer around 65% efficiency. Even if you don't replace the furnace due to the upfront cost, you will end up paying high energy bills over time.

Quieter Operation

Newer furnaces make a negligible amount of operating noise because they come equipped with sound-dampening technology.

Comfort Upgrade

Modern heating systems come with features that stabilize the comfort of your home like zoning systems and variable speed operation that help remove the cold spots so you experience uniform heating throughout your home.

Furnace Replacement Costs 

There are several factors to consider to determine the total replacement cost:

  • Size of your property
  • Number of people occupying the home
  • Number of stories to your home
  • Direction of the windows
  • Location for installation
  • Comfort and efficiency requirements
  • Type of furnace wanted

Types of Furnaces

There are a few different options on the market to consider when needing to replace your furnace:

  • Oil
  • Natural gas
  • Propane
  • Electric
  • Other heat furnaces like heat pumps, gas boilers, and ductless split systems

Another popular type is the combination of a furnace and heat pump, known as a hybrid heating system. The heat pump performs heating and cooling jobs to provide superb comfort and efficiency.

Furnace Replacement Checklist 

There are many things a professional will check before installing a new furnace including:

  • Remove the damaged or disconnected exposed ducts for repair or replacement
  • Check duct size
  • Room-by-room load calculation
  • Replace air filters with a MERV 8 or a higher air filter
  • Select a new location for the thermostat (needs to be on an interior wall, away from the cooling or heating registers, appliances, doors, windows, and lighting fixtures)
  • If the installation leads to an empty entry point in the chimney, seal the hole in the chimney.
  • Test the pressure balance to ensure proper room-to-room airflow. Make adjustments to address any imbalances in pressure.
  • Make sure the airflow is accurate as recommended by the furnace manufacturer.

Furnace Replacement Tips 

Every homeowner needs to know some basic things before replacing their heating system:

Know the type of your system: Know your furnace, whether it is an electric, gas, or oil-type furnace. An electric furnace is best for intense winters, while a gas type is suitable for harsh weather. Oil furnaces are less popular due to the high oil prices, but they are still good to use in harsh winters.

Get it done by a reputable company: It is best to get the installation done by a reputable company. Professionals working in companies have the required expertise and experience to install furnaces and HVAC systems. Never install a heating system on your own, as it requires skills and experience.

Get the right size: It’s important to know the right size of furnace required for your house. Choose a size according to the area and levels of your house. Installing a smaller unit can cause problems as it will not maintain the proper temperature.

Know the maintenance schedule: You should ask the manufacturer company to explain the furnace's maintenance schedule. Proper maintenance sessions enhance its life and maintain its optimal performance over the years.

Furnace Replacement Warranty 

Most companies offer warranties for their heating products, and furnaces are no exception. Ask for the warranty of the furnace as it will cover any manufacturing defects or repairs needed. Most manufacturers offer a warranty of 5 to 10 years on their heating systems. Some companies also offer you the option of an extended warranty for an additional fee.

Furnace Replacement Troubleshooting 

Troubleshooting is a part of routine maintenance, but homeowners should also know how to fix minor problems with their heating systems. Here are some common troubleshooting tips to fix a furnace.

The furnace does not generate enough heat.

Inadequate heat generation can result from clogged air filters or loose connections, due to which the furnace does not get proper power. Another possible reason could be the small size of the furnace, which might be insufficient to heat your space.

The furnace blows cold air.

The cold air could be due to the malfunctioning of the electric ignition or heating coil. If the ignition light works, you need to call an HVAC professional to fix the issue.

The blower runs continuously.

If the blower does not shut off, there might be a problem with the limit switch. You can replace the limit switch or call HVAC services to replace it.

The furnace makes noise.

It is not normal if you hear a rumbling or rattling noise from the furnace. The sound could result from a clogged burner, less airflow, or a faulty blower motor. If the noise is coming from the ductwork, it might require insulation.

FAQs

How long can a furnace last?

The life of a furnace depends on several factors, such as the type of furnace, regularity of maintenance, quality of parts, and use. Usually, a furnace can last for 15 to 20 years.

When to replace my furnace?

If your furnace is near the 15-year mark, it may not generate adequate heat, and your energy bills may rise due to an inefficient furnace; it's time to replace it with a new model.

The furnace does not blow air at all.

Most furnaces have a pilot light or blinking light. If this light is blinking green, there might not be a problem with the blower. However, if the light is blinking red, the blower might have a problem. Get the blower checked by a professional.

The pilot light doesn’t light

The pilot light may not light due to a lack of gas supply. If your furnace has electrical ignition, there might be a problem with the wiring connections.

When to call a repair expert

Gas furnaces use combustible gases to generate heat, and it can be dangerous to fix a problem yourself. It is always wise to call a furnace repair professional to address a problem, as they have the required expertise and equipment to fix any issue. If the troubleshooting tips don't work or there is a major problem, contact trusted HVAC Professionals today, at Broussard Services.

Broussard Services

Mississippi Location
14405 Cullen St
Biloxi, MS 39532

Tennessee  Location
117 Lemuel Rd.
Nashville, TN 37207
Ph: 615-988-6030

CONTACT INFORMATION

Biloxi Office:
228-271-3205

Nashville Office:
615-988-6030

Email:
angelad@broussardmechanical.com

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