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7 HVAC Issues More Prevalent in Older Homes in Manassas, VA

Older homes Manassas, VA, are unique and beautiful. However, they’re also prone to HVAC problems like an outdated thermostat and failing ductwork. Here are seven HVAC problems in older homes that can reduce your system’s energy efficiency and your comfort:

Leaking Ductwork

Older homes often have leaking ductwork, so you experience uneven heating of rooms in winter. Another sign of an older home with leaking ductwork is an increase in the monthly utility bills.

This HVAC problem happens when the system produces air and gets derailed from its route, causing the system to overwork. A buildup block restricts airflow and increases allergens that affect indoor air quality in older homes.

Common causes of poor air quality in older homes may include poorly maintained ducts and air leaks through cracks in attics and floors. It’s wise to invest in IAQ monitors to detect contaminants in your indoor air.

Energy Efficiency

Your older home’s HVAC system might be working fine, but it’s not energy efficient. Old HVAC models weren’t designed with energy-efficiency features, so it’s necessary to invest in a newer model if you want to save on energy bills in the long run.

Older homes often have a single thermostat that controls temperature for the entire house, which lacks HVAC zoning features. Modern HVAC systems allow you to designate zones with a separate control. Therefore, you need to invest in a system with several air handlers that allow you to zone your home to improve your comfort and energy-efficiency.

Restricted Airflow

Ductwork can last for about 15 years with proper maintenance. However, over time, ducts lose their efficiency due to aging and the buildup of dust and debris from the outside, which blocks them and restricts airflow. Consequently, your HVAC system can’t distribute air throughout the house.

Older homes often have a thin layer of attic and wall insulation that’s insufficient. It’s hard for such homes to maintain warm air when it’s cold, resulting in higher than usual energy bills because the HVAC system doesn’t operate efficiently. Invest in proper insulation to reduce monthly energy bills and keep your older home comfortable.

Outdated Thermostats

Most homes constructed several decades ago have outdated thermostats that can affect how HVAC systems function. Old thermostats don’t have several controls, and they can cause frequent cycling and wear and tear on the HVAC system. Modern thermostats have more controls, and some are Wi-Fi enabled, so it’s a good idea to replace the thermostat after moving into an old house.

Outdated HVAC System

The lifespan of most HVAC systems is 15 years. Unfortunately, the efficiency of an aging HVAC system dips, and it loses its ability to warm or cool your home. If you move into an old home, it’s best to replace the system because it’ll maintain your desired home temperatures and save you money in the long run.

Electric Failure

The possibility of an HVAC system shorting out is higher in older homes than in modern ones. Some electrical failure problems common in older HVAC systems may include tripping circuit breakers, failing capacitors and relays that are sealed shut. Also, poorly maintained HVAC systems in older homes can catch fire if they overwork due to high temperatures.

Unusual Noises

Some HVAC noises are normal as the system operates, but others signal mechanical issues. Also, older HVAC models are nosier than modern ones because of the technology used to make them. Some unusual noises are more prevalent in older homes than modern ones, such as squealing sounds that indicate a failing motor.

If you’re buying an older home, it’s important to schedule an inspection to detect these HVAC problems and fix them. If you notice anything wrong with the HVAC system, hire a service technician for maintenance or replacement. Contact us at Brennan’s Heating & Air Conditioning today if you struggle with indoor air quality in your older home.

Image provided by iStock

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