Landscaping That Will Not Inhibit Your HVAC System

Landscaping and lawn care is a growing business in the U.S. (pun intended). American’s purchase more than $49 billion dollars on DIY lawn care and landscaping products; that is more than $503 annually per home. At the same time, the lawn care business is booming: lawn care professionals bring in an additional $103 billion. A nice lawn brings style and value to our property, and for those who participate, it brings fun and entertainment to our family and friends.

We are not a lawn care business; we are HVAC System professionals. In this article, we will help you care for your outdoor air conditioner (AC) compressor unit while you care for your lawn and landscape.

Broad Principles

The air conditioner compressor needs good airflow to work properly. Avoid permanent features that obstruct air movement.

The compressor is a valuable HVAC System component, so take precautions to protect it from damage.

Long-term Planning

• The main function of your compressor is heat exchange; it helps remove the heat from inside your house while cooling the air and removing humidity. You’re HVAC System compressor functions best out of direct sunlight, and receiving direct sunlight for long periods can affect its efficiency. Most builders consider placement during construction, but if not, here are a few options:
  • Explore changing the compressor location the next time it is replaced.
  • Strategically plant a small shade tree nearby to create shade at crucial times during the summer months.
• Resist the urge to planting shrubs or leafy plants in close proximity to the compressor as camouflage. Vegetation can impede airflow and also restrict access for technicians when they service the unit. A better option is a 2 to 3-foot perimeter of grass or gravel. Mulch might seem like a good option, but mulch is light and moves with both wind and water. If mulch finds its way inside the compressor, it can damage the fins or the fan blades.

Property Maintenance

• Inspect your trees and take note of old or dying tree limbs in the vicinity of your compressor. A fallen limb on the next windy day can damage the compressor and force you to replace it prematurely. Since the compressor was installed close to the home, you will also prevent damage to walls, windows, and roof at the same time.
• Before major storms, remove patio furniture, yard toys, or other items that might blow into the compressor and cause damage.
• After a windy day or severe storm, inspect the area for twigs or leaves that might have blown against the AC unit. Debris accumulated around the compressor will impede airflow or be drawn inside the unit.

While Mowing

• Before you mow, pick up rocks or twigs in the area of the AC compressor. If the lawnmower blade throws items at the compressor at high speeds, it can damage the unit severely.
• Try to avoid mowing while the unit is engaged to prevent the fan blades from drawing grass clippings between the fins or inside the compressor air exchange. Grass clippings will clog the unit and can cause it to overheat.
• When mowing, make sure the mower guard is pushing the grass clippings away from the compressor unit.

Have questions about your HVAC System Maintenance?

For more information about R.M. Mullinix and the importance of keeping landscape away from your HVAC System, schedule an appointment, or visit our HVAC maintenance information page.