Can you build deck over air conditioner
James Bradley
Updated on April 16, 2026
Sometimes an existing air conditioning unit is installed in the location where you want to build a new deck. … Most AC manufacturers recommend maintaining a minimum 60″ uninterrupted clearance above the compressor to allow for hot air to exhaust from the top of the unit.
How much clearance do you need above air conditioning?
The general rule of thumb is to have at least one foot (or 12 inches) of clearance on each side of your air conditioner. Your air conditioner’s manufacturer may have specific clearance recommendations, but they’ll generally recommend between 12 and 24 inches.
Can you cover your outside AC unit?
Outdoor cooling units are built to endure these harsh winter weather conditions, which eliminates the need for a cover. Moisture (water) can freeze the air conditioner’s condenser coils, which can cause damage over time. However, there is no way to keep moisture out 100% of the time.
Can I put a roof over my AC unit?
The simple answer is anything you would put over the top of that condenser/compressor unit to lower the noise level and placed so as to not restrict airflow would be at such a height that it would be useless for the purposes intended.How do you hide an air conditioner on a deck?
Create a wood box with pieces of trellis along the sides, and mount it to the outside of the window around the unit. If you want to add a touch of nature, hide the air conditioner with plants by taking that same trellis box and adding an array of artificial plants just inside the top edge.
Should I put a shade over my AC unit?
Energy.gov confidently states that “shading the outside unit can increase its efficiency by up to 10%.” Even house-savvy BobVila.com proclaims, “Shading your air conditioner can reduce energy costs by as much as 50 percent.” … Keeping them out of the sun should help them get rid of heat more efficiently…
Should I cover my AC unit in the summer?
If you’re considering covering your outside AC unit in the summer, whether to protect it from bad weather or to possibly save energy, the reality is that you should never cover your AC unit – not even during bad weather. For one thing, outdoor AC units are specifically designed to live outdoors.
Are HVAC covers safe?
A Cover Could Do More Harm Than Good Because moisture is all but guaranteed to seep into your air conditioner anyway, a cover can actually cause damage. Moisture inside the unit could become trapped, leading to mold.Can you put AC condenser under deck?
Anything that restricts the air flow around the condensing unit will reduce its effectiveness and efficiency. Being under a deck means that some of the hot air will get recirculated.
Can you put a fence around an air conditioner?Fencing around your AC can minimize and deflect noise, but it’s important to consider the space with which you have to work. You don’t want to crowd the cooling system, and allowing for at least three feet on all sides of the unit will give it room to breathe.
Article first time published onCan you enclose an air conditioner unit?
Allow Sufficient Airflow The most popular way we’ve seen homeowners hide their air conditioner condenser is to enclose the unit behind a fence, screen or latticework. … Never box in your unit with a solid structure—you must allow ventilation through large lattices or screens!
How do I protect my outside AC unit from rain?
- Cover Your HVAC. Two of the biggest enemies for HVAC units are hail and debris. …
- Avoid Using Your HVAC During A Storm. …
- Install Your HVAC In An Elevated Area. …
- Keep Your Yard Spotless. …
- Inspect Your Unit Before Turning It On. …
- ABC Can Protect Your Biggest Investment.
What happens if you run AC with cover on?
Running an air conditioner with its cover on doesn’t allow for this exchange of heat and condensation. It will put undo stress on the unit, which can damage internal components that keep the air conditioner running. Leaving the cover on can cause the unit to overheat since the heat has nowhere to go.
How many hours should AC run per day?
The compressor alone consumes 90-95% of the power for the entire AC system. If your AC capacity is right according to your room size then for moderate summers(not too high), the compressor may run for 70-80% of the time. This would be 16-19 hours a day. This goes for both window and split AC.
Can you put a tarp over AC unit?
Don’t wrap it! Wrapping your condenser can cause rust. Even when wrapped tightly, your condenser isn’t airtight. That means moisture gets trapped under your tarp and condenses on the inside of the unit. … Come spring, you’ll have a stinky cleanup, a rusty A/C condenser and a hefty bill for rewiring.
Are air conditioner covers bad?
AC covers don’t have proper ventilation which allows moisture to become trapped within the AC unit. As that moisture builds up, it also increases the risk of your unit becoming susceptible to rust and corrosion.
What can I put around my AC unit?
- Keep Plants 2-3 Feet Away. There should always be 2-3 feet of clear space when you landscape around your AC unit. …
- Make Sure There’s Plenty of Shade. …
- Create a Windbreak with Evergreen Plants. …
- Stay Mobile with Large Potted Plants. …
- Use a Trellis, Screen, or Lattice Cover. …
- Try a Gravel Garden.
Is it OK to spray water on your air conditioner?
The good news is that you absolutely can spray water on your air conditioner if it needs a cleaning, and nothing bad will happen. Spraying water on your AC’s condenser also helps it run more efficiently. In fact, your condenser needs a regular spritzing in order to keep doing a good job.
Is it OK to spray water on your air conditioner while running?
Does spraying water on my air conditioner help it run more efficiently? … Spraying water on your air conditioner can help it run more efficiently if you remove enough dust, dirt and debris to help improve airflow and prevent it from overheating. It’s certainly not going to damage your AC unit to do so.
Is it cheaper to leave air conditioner on all day?
In general, it is cheaper to leave the AC on all day during very hot temperatures. … After even just a couple of hours, your AC will have to work hard to lower the temperature back to a comfortable level. This can take a long time and place too much strain on the system.
How far from house should air conditioner be?
A rule of thumb is to maintain at least two-feet (24″) between the A./C compressor/condenser unit and any nearby obstruction such as a building wall, shrub, or fence.
Why do manufacturers require clearances above the unit condenser?
Why You Should Follow Proper Clearance Distances For your air conditioner to work efficiently, there needs to be unobstructed airflow across the condenser and compressor of the outdoor unit. … The heat generated inside the condenser and compressor won’t be expelled.
Can a mini split condenser go under a deck?
The term “Mini-split” refers to a single system with one outdoor unit and one indoor unit. … Outdoor Condensers can be hidden under a deck, porch, enclosure, or on a remote side of the building.
How do I cover my outside AC unit for the winter?
- Use a cover made of breathable material.
- Put plywood over the top of the unit only to shield from snow and ice, weighing it down with bricks or rocks to keep in place.
- Install a wood awning or shelter attached to the building that covers the top of the unit.
How do you cover an AC unit indoors?
- Wall-mounted die-cut cabinet. …
- Wrought iron grate. …
- Shutter box. …
- Die-cut wood & lace wall panel. …
- Slatted wood panel. …
- Wall mounted shelf. …
- Metal grille mantel. …
- Shutter register cover.
Do I need to cover my AC unit when it rains?
In most cases, the condenser unit should never be covered. Rain cannot harm the condenser, as long as the moisture can evaporate freely, and neither can the cooler weather of a Florida winter. … Otherwise, simply keep the condenser free of debris, and rinse the dirt out periodically.
Can I plant around my air conditioner?
Make sure plants are at least 2-3 feet from the unit on all sides, and plan the landscaping so that the air conditioner is easily accessible for maintenance and repairs. If you have trees or other plants growing above the unit, trim regularly to keep a 5-foot clearance between them and the air conditioner.
Can dog urine ruin an AC unit?
But if there’s one thing your dog’s urine can completely destroy, it’s your air conditioner. It turns out that the acids in your dog’s urine are highly corrosive and can eat through your AC coil and aluminum fins.
Can you build a box around air conditioner?
Build a fence or box around your AC unit, incorporating plants and flowers between the slats. You can also install flower boxes for a taller ac unit fence. Check out these 21 air conditioner maintenance and home cooling tips.
Can rain damage AC outdoor unit?
The outdoor portion of an A/C system is built to withstand the rain, and even severe rainfall will not damage it. … If your air conditioner’s outside unit becomes partially or fully submerged, it probably will be destroyed.
Is rain bad for air conditioner?
Even though heavy rains cannot damage your AC unit, the winds accompanied by the same rain can leave dirt, leaves, twigs, and other debris to damage the condenser fan grille. Even objects falling on your unit, such as tree branches, from the storm can cause damage.