How to Cool Your Garage

  1. Open the Door. When it comes to knowing how to keep your garage cool, the first — and often best — step is to open the garage door. …
  2. Cool Vehicles Before Parking. When you drive your car, it heats up. …
  3. Install a Ceiling Fan. …
  4. Declutter. …
  5. Install an Awning or Plant a Tree. …
  6. Improve Insulation.

What is the cheapest way to cool a garage?

The easiest and most cost-effective way to cool a garage is to allow hot, trapped air to escape by opening the garage door or some windows. The airflow will also help keep the air temperature cool. If possible, opening windows or doors in a manner that creates a cross-breeze is most effective.

How do you ventilate a hot garage?





Your garage can only get as cool as the temperature outside. However, by installing one or more ceiling or sidewall exhaust fans it will help keep the temperature within reason. Exhaust fans that are placed high on the wall or ceiling, as well as directly opposite the main garage door offer the most effectiveness.

Why is my garage so hot?

Numerous factors can affect a garage’s temperature, including: location of the garage (garages facing west are exposed to the sun’s intense late afternoon heat) garage colors (darker garage doors and garage exterior colors will conduct heat) whether your garage has any ventilation system.

Can you put AC in a garage?

Window air conditioner – Your standard window AC unit is a good choice for most garages. Chances are, your garage has a window, making this an easy installation. If not, the unfinished walls of most garages make a through-the-wall installation relatively painless. Window AC units are cheap and effective.

How can I cool my garage down without AC?

Temporary Options for Cooling a Garage

  1. Fans. Having a fan in a garage can do wonders. …
  2. Dehumidifiers. Humid air traps the heat and makes the room feel hotter than it is. …
  3. Close the Doors When It’s Hot Outside. …
  4. Swamp Cooler. …
  5. Do Not Park a Hot Car Inside Your Garage. …
  6. Remove Clutter.




How do I make my garage AC without a window?

Cooling a Garage With No Ventilation: Portable Options

  1. Open the Garage Door. Depending on the angle of the sun and how well-insulated your garage is, opening the door will provide a big breath of fresh air. …
  2. Add Powerful Portable Fans. …
  3. Try a Dehumidifier. …
  4. Build a Low-Tech Swamp Cooler. …
  5. Buy a Portable Air Conditioner.

Are garage fans worth it?

While garage exhaust fans will not prevent all heat from building up in the garage, it can help lower the temperature to more bearable levels. More importantly, though, because it lowers the temperature in the garage, it helps to control and maintain the temperature inside your home if your home has an attached garage.

Do dehumidifiers work in garages?



A dehumidifier is the most direct way to deal with humidity in a garage and prevent condensation and mold. It will keep moisture levels in check and reduce the moisture that mold spores require for growth as well as preventing tools from rusting and structural wood rot.

Do garage exhaust fans work?

Unfortunately, a garage heat exhaust fan, by itself, can only be effective at cooling if it helps to pull in air that isn’t hotter than what it is putting out. In these cases, you’ll need to augment the cooling power.

Will a portable AC cool a garage?

Yes. A 7,000 BTU air conditioned should be enough to cool a 1-car garage, while a 2-car garage would need a 12,000 BTU air conditioner. However, it’s important to have insulation so the cold air doesn’t escape.

Will a swamp cooler work in a garage?



Swamp coolers, known also as evaporative coolers, are an environmentally friendly way to cool your garage quickly inside or out. Perfect for both commercial and residential use, they work the best in a hot and dry climate and can be especially effective in a garage or large spaces like a warehouse.

Is there a ventless air conditioner?

Yes. The truly ventless cooling devices are called evaporative coolers or ‘swamp coolers’. They create airflow and cool you like a cool wind; they do not, however, lower the overall temperature of the room like portable air conditioners that need to be vented.

Are there portable air conditioners that don’t need to be vented?

Evaporative air coolers offer a ventless portable air conditioner option. These portable AC units don’t have a hose and deliver cool air in your home by evaporating water. These add moisture and humidity to the air. They are efficient in dry climates but less effective in humid areas.

Do mini air coolers work?

Do personal air coolers work? Yes, personal air coolers work like a charm. Furthermore, they can keep you cool while cutting energy costs. They evaporate air and turn warm air into cold air to reduce the temperature in the room.

Are there air conditioners that don’t need a window?



Ventless air conditioners are a type of portable air conditioner that doesn’t need a window. You can use them anywhere in a room because they’re self-contained units that provide cool air without a hose. This is the best type of portable AC with no window available.

Do dehumidifiers cool the air?

Dehumidifiers are designed to remove humid air from a hot room, which can have a cooling effect. While a dehumidifier can make a room feel less warm, it’s not its primary purpose. If your home is uncomfortably warm, we would recommend investing in an air-conditioning unit instead.

Can you have air conditioning without an outside unit?

A lot of air conditioners without an outdoor unit are marketed as ‘DIY’ units. These units don’t have an outdoor unit, making installation easier. Usually, air is pumped through ducts at the back of the unit, so the unit needs to be installed against an outside-facing wall.

Can I use a portable air conditioner in a room without a window?

Every room has a door, and you can vent a portable air conditioner through the door. Using door venting is the most common way of venting a portable air conditioner without a window.

How do you vent a portable air conditioner in a garage?



Garages usually do not have a traditional sliding window, which is the most common way to vent a portable unit. If a window is not an option, the other choices would be venting through the roof or wall. This would require drilling a hole through the side of the garage to fit the exhaust hose.

What is a ductless air conditioner?

A ductless mini split system, in its most basic form, includes one outdoor unit and one indoor unit, connected by refrigerant tubing and electrical wiring. The indoor unit is often wall-mounted, and delivers heated or cooled air directly into the living space – no ductwork needed.