In general, most HVAC systems will last 15 to 25 years, but depending on the type of system and other contributing factors, that estimate can be highly variable. Even with HVAC maintenance and regular repairs, eventually, even the best boilers, furnaces, heat pumps, and air conditioners today will run their course.

Energy Efficiency This system can help save on energy costs by improving your home energy efficiency. Unlike having multiple air conditioners in your home to cool different rooms, central air can cool the entire house using less power. While this is great for the environment, it's also good for your budget.

While it can depend on the season and outside temperature, heating a home is often more expensive than cooling it. Heating can consume more energy because the temperature outdoors is significantly lower than the desired indoor temperature. So, your heater has to work harder to get your home to the desired temperature.

Now let's talk about using your air con for heating. Well, it generally costs around $0.13 to $0.36 per hour to use a reverse cycle air conditioner to warm a room. But just as you might expect, a ducted whole-house reverse cycle air conditioning system costs the most at $1.45 to $2.12 per hour!