Now that you’re in the market for a new heating system, you may find it difficult to choose a solution that’s kind to both your wallet and the planet. Heat pumps are growing in popularity due to their efficiency, as they move heat rather than create it through burning fuel. Presently, there are two types of heat pumps on the market today: air-source and ground-source systems.
The Convenience of Air-Source Systems
Air-source heat pumps are the most popular among homeowners because they’re the more affordable option and easy to install. They closely resemble typical HVAC equipment. These systems contain similar components to a standard air conditioner, except they feature a reversing valve that controls heat transfer. Though the air seems freezing outside to you, there’s still enough thermal energy for the refrigerant in the heat pump to extract heat and move it into your home. These units are most optimal for people who live in suburban neighborhoods, as they don’t require a significant amount of ground space to set them up.
The Deep Stability of Ground-Source Loops
Ground-source heat pumps, which are also referred to as geothermal systems, take advantage of the fact that the earth stays at a steady temperature all year. While the air temperature might swing drastically from zero degrees in the winter to 90 degrees in the summer, the ground six feet below remains around 55 degrees. This system uses a series of pipes filled with water and antifreeze that are buried in deep trenches or vertical wells. Since these units don’t rely on air for heat transfer, they don’t have to work hard to maintain the climate in your home. Ground-source heat pumps are significantly more efficient than their air-source counterparts; however, they do come with a much higher upfront cost. They also require a significant amount of land space for installing the underground loops, so they’re not an option for all home types.
Performance in Extreme Weather
Both of these systems perform differently in extreme weather. Air-source heat pumps tend to struggle when outside temperatures dip extremely low, as there’s less heat in the air. Modern systems do much better when the mercury dips; however, efficiency still decreases. Ground-source heat pumps, on the other hand, perform consistently, even when conditions are extreme. No matter the weather outside, the temperature deep in the earth still remains stable.
Life Span and Maintenance Needs
When you invest in an HVAC system, you want it to last long so that you don’t have to worry about the cost of replacement for some time. Air-source units are exposed to rain, snow, and falling leaves. So, they typically last about 15 years before you need to replace them. Ground-source heat pumps are much more durable. This is because the most expensive part of the unit is buried safely underground, where the elements and debris can’t reach it. The indoor components of a geothermal system can last 25 years. The buried pipes are often warrantied for 50 years or more. While you pay more at the start, you’re essentially building a permanent utility for your home that will serve you for decades.
To determine which option is best for you, consult with an HVAC professional. Call the team at Sargent’s Plumbing and Heating for heat pump solutions for your Nipomo, CA home.
