Now there is a tendency that manufacturers of equipment to produce the most functional devices, combining the functionality of several devices. One of these is air conditioners with a built-in air purifier. Moreover, among them, there are mobile devices, which can work in the room without any windows and without installing any air ducts. They are ideal for small rooms, where it is necessary to reduce air temperature only by 5 – 7 degrees. What is the best windowless garage air conditioner to buy?
Table of Contents
Types of air conditioners for garage without windows
Conventionally, all windowless garage air conditioners can be divided into the following categories:
- Mini-split air conditioners. Their only difference from the “classic” ones is the smaller size and, consequently, performance. But they also consist of two main knots, one – external, where the tubes filled with freon are located, and the second – internal. Are the best option for large area garages.
- Evaporative coolers. Their principle of action is fundamentally different from the usual air conditioners. Here instead of the system with a coolant, there is a water evaporator, in which during the transformation of water from a liquid condition into gaseous one thermal energy is absorbed. Suitable for small garages, they have a small capacity, but consume minimal electricity and make minimal noise during operation. Most modern evaporative air conditioners use perforated discs over which water is distributed.
- Portable air conditioners. The principle of work is the same, as in mini-split systems. That is, inside tubes, filled with freon, as well as the compressor are installed. But here two blocks are connected into one. Also, a hot air outlet is required, so it is mounted with an air duct. Moisture inside condenses, so many air conditioners additionally dehumidify the air in the room.
Mini split air conditioners
Mini-split conditioners are the most productive. Such conditioners are recommended to buy for those, who spend a lot of time in the garage. Or wants to lower the temperature in the premise for only 3 to 5 minutes. They are more expensive than others, but at that, it is necessary to mount separate outdoor and indoor units.
Senville LETO Series Mini Split Air Conditioner Heat Pump, 9000 BTU
A mini-split system that can also be used to heat your garage. It also comes with all the necessary accessories for installation, so you can save on the services of a professional installer. There is also a remote control. You can set up the air conditioner remotely using the brand app on your smartphone. Support for Alexa voice assistant is also realized. Supports the following functions:
- cooling and heating of the air;
- Cleaning the air from dust, allergens, and hair;
- Purifying the air from unwanted odors;
- dehumidification.
Installation – wall mounted. Noise at work is not more than 25 dB. Performance – 9000 BTU. Power consumption – up to 782 Wt*h per year.
Pros:
- Suitable for large garages;
- can be used for space heating;
- Alexa voice assistant support is implemented;
- manufacturer’s warranty – 5 years.
Of the disadvantages are highlighted only the difficulty in the initial setup. But all the necessary information on this subject is presented in the manual.
Pioneer Diamante Series Ductless Mini-Split Air Conditioner Inverter for garage
Mini-split system with inverter compressor, which positively affects the operating life of the air conditioner. The capacity is 9000 BTU. It can also be used for space heating (9500 BTU). Also works as an air purifier and also normalizes the humidity level. Comes complete with everything you need for installation, as well as remote control (with LCD screen and wall mount for it). Manufacturer’s stated specifications: weight is 77 pounds, noise during operation is up to 38 dB, power consumption is about 780 Watt*h per year with regular operation.
Pros:
- low cost (in comparison with similar models in terms of characteristics);
- it can be used for heating the room;
- convenient remote control.
From lacks note only a short network cord. So, it may be necessary to install an additional outlet in the garage, especially for a split system.
OLMO Alpic Ductless Mini Split AC System for garage with no windows
One of the most compact mini split systems for garages without windows. Can be used to cool as well as to heat the room (the minimum allowable temperature for operation -15 degrees Celsius). The claimed capacity – is 9000 BTU. The kit includes everything you need for installation, including a wall mount for the remote control. There is a HEPA filter inside, as well as a charcoal filter, so the device also neutralizes unpleasant odors in the room. Available also in a version for 220V mains. Features: weight – 58.8 pounds, operating noise – up to 39 dB, power consumption – 782 Watt*h per year. The standout feature is the use of a Toshiba inverter motor, which is backed by a 5-year warranty.
Pros:
- high reliability;
- compact size;
- Remote control with LCD display for easier adjustment;
- saves the previously set parameters in case of emergency power failure.
From the disadvantages, it is possible to note only the absence of detailed instructions on the installation of the split system.
Portable conditioners
Though mobile conditioners have a smaller capacity, than mini-split systems, their installation takes only 5-10 minutes. Only a duct, through which hot air will be deduced outside the garage, is needed.
Important note: after installing such a device, it is recommended to turn it on not earlier than 1.5 hours. This time is necessary for the even distribution of oil, which is exactly where the compressor is.
SereneLife SLPAC8 Portable AC for garage
Floor standing portable air conditioner, which also combines dehumidifier and air purifier. Inside it is built in 3 filters: a preliminary filter, which detains the coarse fraction of garbage, hair, and HEPA, which detains fine dust and coal, neutralizing unpleasant smells (including tobacco smoke). The capacity is 8000 BTU. Power – up to 900 W (depending on the selected operating mode). Operating noise – up to 57 dB. Performance as a dehumidifier – up to 1,2 liters per hour. Suitable for garages up to 225 square feet. The air conditioner comes with everything you need to install through a window, but the unit can also be connected to an outdoor duct already installed with no problems. There is also a remote control. It can also be used as a floor fan. There is a built-in timer, as well as automatic maintenance of the set temperature.
Pros:
- Good power reserve;
- effectively dehumidifies the room;
- There are convenient silent wheels for fast moving.
Cons: does not support the function of heating the room, as well as not convenient attachment of the air duct grid, which acts as a pre-filter.
Portable Air Conditioner for garage with Remote Control with no windows
Compact air conditioner for rooms up to 225 square feet. Claimed capacity up to 8000 BTU. The electric motor is an inverter, which is a kind of guarantee of reliability. Power output is up to 900 watts. There are 3 modes of cooling intensity. It is also possible to use for dehumidification of the room (productivity – up to 1,2 liters per hour). Placement – floor standing. All necessary accessories for the installation of a window duct are supplied together with the air conditioner. It is possible to use as a floor fan (without cooling and dehumidification). Makes up to 60 dB of noise during operation. There is also a “night” mode of operation, in which the light indicator is completely turned off. On the case, there is a water tank fullness indicator. Includes remote control with a small LCD screen.
Pros:
- Small size;
- There is an automatic mode of operation (maintenance of the set temperature range);
- can be used as a dehumidifier.
Of the disadvantages can be identified only a strong noise, if you turn on the mode of maximum performance.
Vremi Portable Garage Air Conditioner
Portable air conditioner for rooms from 150 to 250 square feet. The capacity is 10,000 BTU. Able to maintain garage temperature between 18 and 32 degrees Celsius. There is a 24-hour timer (in 1-hour increments). The filter is reusable, removable, and washable. There is also a special temperature indicator on the body. The device consumes up to 1200 W. Suitable for big garages, where for some reason it is not possible to mount a “classic” mini-split system. The noise during operation – is up to 56 dB. Includes remote control. Comes with a special duct for installation through the window.
Pros:
- One of the most productive portable air conditioners for the garage;
- everything necessary for the installation of the duct through the window is in the complete set;
- attractive design.
The disadvantages include the large size of the unit, as well as the small volume of the water tank.
Evaporative coolers
Vremi Portable garage Air Conditioner for 150 to 250 Sq Ft Rooms
Portable evaporative air conditioner for the most compact garages. In addition to cooling the air, it can be used as a complete climate station. Supported functions:
- air humidification;
- Ionization and disinfection;
- Air purification (from dust, and allergens).
Another feature is the use of a bladeless fan. The default setting is floor installation, but there is also a wall mount. The power is only 80 watts. There is a remote control included. Makes noise up to 45 dB when working. The filter is a water filter, with an automatic cleaning system with the help of steam. On the body of the air conditioner, there is also a small LCD display, which indicates the current mode of operation, as well as the humidity in the room at the moment.
Pros:
- A full-fledged climate station;
- can work in a completely automatic mode;
- Low power consumption.
Of the disadvantages note only the glossy case, which quickly loses its original appearance and is covered with scratches.
4-in-1 Air Evaporative Cooler for garage
This is a miniature climatic station that not only cools the air but also humidifies it and cleans it from dust and allergens. It has a built-in HEPA filter, which traps particles up to 0.3 microns. Also, this air conditioner has an integrated ionizer, which disinfects the ambient air. The filter is removable and washable. Fan without blades. Power consumption – up to 80 Wt*h. Delivered complete with remote control. There is a timer for up to 24 hours. There is a display on the front of the case, which indicates the current mode of operation, as well as the humidity in the room.
Pros:
- Compact and lightweight air conditioner;
- It quickly humidifies the premise;
- bladeless fan;
- does not require frequent changes of the filter.
Cons: it is impossible to turn off the light indication. Therefore, not suitable for placement, for example, in a bedroom.
Evaporative Cooler VAGKRI 2100CFM for garage with no windows
High-efficiency evaporative air conditioner. According to the manufacturer’s claims, it is suitable for rooms up to 700 square feet. The capacity of the built-in water tank is 30 liters. The capacity is up to 3 liters of water per hour in intensive mode. Comes also with a hose for a constant water supply. In the upper part, there is an ice tray, where you can put gel accumulators (for faster and more effective cooling of the room). Suitable for large areas. The built-in fan provides air circulation not only in a particular room but also in the entire room. Power consumption is up to 105Wh.
Pros:
- One of the most productive evaporative air conditioners;
- blowing out of cooled and humidified air is carried out from each side of the conditioner;
- sturdy casters are installed for transportation with a locking function.
The only disadvantages are size and weight.
What to consider before buying
In order to choose the best air conditioner for your garage, you should carefully study the characteristics of the device before buying. And at the same time, consider the specifications of the garage where the unit will be installed.
The size of the garage
The larger the size, the more capacity the air conditioner requires. If its size is up to 150 square feet, then portable air conditioners should be considered for purchase. If larger, mini-split systems.
Air conditioners with evaporators are optimal for the most compact size garages, not more than 100 square feet, where is stored, for example, a motorcycle.
It should also be noted that portable air conditioners effectively cool only one room. Accordingly, if the garage consists of several, it is recommended to place a small air conditioner in each room. An alternative option is to install a mini-split system.
Insulation
For more effective cooling of the air in the garage, it is recommended to mount insulation. Any material will do polystyrene foam or mineral wool. If possible, the insulation is mounted outside. But in this case, it is also necessary to ensure good ventilation, that is, to arrange the air duct.
You should also check how tightly the door is to the opening. In the presence of even a small gap, the efficiency of even the most productive air conditioners will be significantly reduced.
Efficiency
Efficiency depends directly on the type of air conditioner, as well as on the capacity of the installed electric motor. Most often, manufacturers indicate this value in BTU. But it is necessary to understand that the required efficiency directly depends on what kind of weather is outside. For example, a portable air conditioner with an efficiency of up to 7,500 BTU is designed for a room of 150 square feet. But if the temperature outside is over 30 degrees Celsius and all this is supplemented by a clear sunny day, sometimes a 9,000 BTU unit will not be enough for such a garage. Much also depends on the quality of the insulation installed in the garage.
Power
The power is specified in Watt*h. The higher it is, the more efficient the air conditioner is able to cool the room, but at the same time, it consumes more electricity. It is not recommended to buy models, which are designed for very large garages, rather than the buyer has.
The average power consumption of mini-split systems and portable conditioners is from 700 to 1200 watt-hour. Evaporative ones have ten times less, but their productivity is lower correspondingly. And such conditioners allow the decreasing temperature in a premise only at 3 – 5 degrees Celsius.
Portability
Conditioner, which is planned to be used in a garage, must be mobile. The less weight – the better. It will also be useful to have wheels for transportation and to have handles on the body for carrying. Most portable and evaporative conditioners are equipped with them.
Small dimensions are not important only for those conditioners, which have a built-in function of air dehydration. For they have a reservoir for water collecting inside. And the bigger it is, the less often it is necessary to unload it. Only some models are equipped with a discharge hose connection. This will allow for the connection of a conditioner directly to the sewerage system.
The most compact is evaporative. They occupy the minimum place, and their wall or desk installation is allowed. But by efficiency, they are inferior to split systems and portable conditioners.
Frequently asked questions
How to cool a garage without windows?
The first thing to do is to install quality insulation. And then – open the doors of the garage, which will ensure a constant flow of fresh air. Additionally, you can try to install a dehumidifier. If the result is not enough, you should consider buying a portable air conditioner for the garage without windows. The most effective are mini-split systems.
Is it possible to use air conditioners in a windowless garage?
Yes, it is possible. But it is necessary to make a duct for constant airflow. Mini split systems and portable conditioners also output hot air outside the garage through this hole. Only air conditioners with an evaporator can be used without ventilation. But their performance is significantly inferior to other variations of such equipment.
Do portable air conditioners work without a window?
Yes, they do. The cooling principle of such a device is exactly the same as that of a domestic refrigerator. The only difference is that an air duct, through which the heated air will be discharged outside the garage, is required.
Can air conditioners work without dehumidification?
Only mini-split systems, as well as evaporative air conditioners, do not reduce humidity in the room. Portable ones, where the split system and the main unit are connected together, are really “drying”. But it is explained by their design features: moisture from the air condenses and flows into the tank when it cools rapidly.
To sum up, it is possible to cool a garage without windows with a portable air conditioner. But only if heat insulation is mounted, and there is a conclusion to ventilation. Manufacturers offer many suitable models of air conditioners. And what is the best one – depends on the individual requirements of the garage owner.
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