The Truth About HVAC: What Every Homeowner Should Know

by BW Group on Wednesday, May 7, 2025
Your HVAC system is the backbone of home comfort. It keeps your space warm in the winter, cool in the summer, and ensures air quality year-round. But most homeowners don’t think about their heating and cooling system until something goes wrong.

That’s when the scramble begins—Googling service providers, searching for quick fixes, and often facing unexpected costs.

We sat down with HVAC expert Anthony Woo to break down what homeowners need to know, from maintenance tips to government rebates that could save you thousands.

HVAC Basics: What You Need to Know

HVAC stands for heating, ventilation, and air conditioning. It includes furnaces, heat pumps, air conditioners, and air exchangers. While these systems may seem complicated, understanding a few key points can help you avoid unnecessary repairs and make smart choices when upgrading.

Lifespan of Your HVAC System

  • Older systems (pre-1990s) were built to last 15 to 30 years.

  • Today’s models typically last 10 to 15 years due to more advanced electronics and proprietary components.

  • Many units come with a 10-year warranty, and major repairs beyond that often mean it’s time for a replacement.

Common HVAC Myths

  1. Freon needs to be refilled annually.

    • False! A properly sealed system should never need a refill. If your system is losing refrigerant, it has a leak that needs to be fixed.

  2. Annual maintenance is always necessary.

    • Not necessarily. Some basic maintenance can be done yourself, reducing the need for professional service every year.

  3. Duct cleaning is required every 2 years.

    • It depends. If your filters are clean and there’s no visible dust buildup, you may not need duct cleaning as often. If you have multiple pets and lots of dust, you may need to do it more often. 

How to Extend the Life of Your HVAC System

Regular upkeep prevents costly breakdowns and helps your system run more efficiently.

DIY Maintenance Tips

  • Change air filters regularly.

    • Frequency depends on household factors (pets, dust, air quality). Check every 1 to 3 months and replace as needed.

  • Keep outdoor units clean.

    • Rinse off dust, pollen, and debris twice a year—once in spring and again in fall.

  • Check for warning signs.

    • If your unit isn’t cooling properly, check for a clogged filter before calling a technician.

When to Call a Professional

  • Your system freezes up (could be a clogged filter or refrigerant issue).

  • The unit is leaking water (could be a clogged drain line).

  • Energy bills suddenly spike without a clear reason.

  • Your system is over 10 years old and has recurring problems


Heat Pumps: The Future of Home Heating

Traditional furnaces and air conditioners are slowly being replaced by high-efficiency heat pumps.

Why Heat Pumps Are Gaining Popularity

  • Work in both hot and cold weather—providing cooling in the summer and heating in the winter.

  • Can operate down to -30°C, making them ideal for Quebec winters.

  • Use less electricity than traditional heating, lowering energy costs.

Rebates and Loans for HVAC Upgrades

Upgrading to a heat pump? You may be eligible for financial assistance:

  • Rebates up to $5,000 through Canada’s Greener Homes Initiative.

  • Interest-free loans up to $50,000 for energy-efficient upgrades (includes HVAC, insulation, windows).

To qualify, work must be done by a certified contractor and follow program guidelines.

Indoor Air Quality: What You Need to Know

Indoor air quality (IAQ) affects your health, comfort, and even your home’s structure.

4 Factors That Affect Indoor Air Quality

  1. Temperature – Controlled by your heating and cooling system.

  2. Humidity – Ideal range is 40–50%. Below 35% causes dry air, above 65% promotes mold growth.

  3. Ventilation – Air exchangers help cycle fresh air in and stale air out.

  4. Filtration – Using the right air filters improves air quality and protects your HVAC system.

Do you need an air exchanger?

  • Newer homes (airtight construction) benefit from air exchangers to prevent excess humidity.

  • Older homes (more airflow) may not need one but often require a humidifier in winter.

Smart Technology and HVAC

The rise of smart thermostats and remote monitoring is changing how we manage heating and cooling.

Benefits of Smart Thermostats

  • Automatically adjusts temperature based on usage patterns.

  • Provides detailed energy reports to help cut costs.

  • Some models allow remote troubleshooting, reducing unnecessary service calls.

New monitoring systems can even detect issues before they happen, sending alerts if something isn’t running properly.

Final Thoughts

HVAC is one of the biggest investments in your home. With regular maintenance, smart upgrades, and available rebates, you can maximize efficiency and extend the lifespan of your system.

Have questions about your HVAC system? Need help finding a trusted technician? Contact us today for recommendations.