A Deep Dive into Choosing the Right Air Conditioner for Your Needs

As summer peaks and the heat demands cooler solutions, you will find yourself looking for efficient yet durable air conditioners. Once a luxury, now a necessity it is important for you to know what works for you or doesn’t. Before you choose an air conditioner consider all aspects of your home, and follow this with energy efficiency, air quality, and budget.

As a customer you are spoilt for options, so here’s a quick guide that will break down your need and simplify the selection process. You can assess the information on different types of air conditioners, their functions, and key factors and make your final choice. However, for the newbies and those looking for newer models reading up on how air conditioners actually function can aid in the selection process.

 

Table of content:

What is an Air Conditioner?

How Does an Air Conditioner Work?

Types of Air Conditioners

How to Choose the Right Air Conditioner for Your Home

Tips for Maximum AC Output

Energy-Saving Tips

Maintenance Tips

 

What is an Air Conditioner?

The air conditioner, commonly called AC is designed to regulate the temperature, humidity, and air quality within a certain area. It transfers the heat from the interiors to the comparatively warmer air in the exterior. This makes the air inside cooler and drier, adding comfort and a clean environment by filtering out pollutants and allergens.

How Does an Air Conditioner Work?

Making an informed choice is always better than going for the wrong product so you should understand how an air conditioner actually works. An air conditioner comprises a compressor, condenser, evaporator, and refrigerant. Due to a process called phase conversion, when liquid converts to gas it absorbs heat. Similarly, this phenomenon occurs in air conditioners when special compounds are forced to evaporate and condense repetitively. This is how it works:

Refrigerant:

The refrigerant compounds have properties that enable them to change at relatively lower temperatures. There are in-built fans incorporated inside which moves along the warm air over the refrigerant coils.

Evaporator Coils:

Once the air passes over the cold low-pressure, evaporator coils the heat is absorbed causing the refrigerant to evaporate into gas.

Compressor:

Following this, the refrigerant gas is converted to liquid once again further ensuring efficient cooling. Once the compressor puts the gas under high pressure it results in unwanted heat.

Condenser Coils:

To ensure this unwanted high pressure and temperature heat is released a condenser coil and second fan is located outside. This function causes the absorbed heat to be released into the outdoor air. The refrigerant condenses back into a liquid.

Expansion:

In the final stage, the liquid refrigerant passes through an expansion valve. This lowers its pressure and temperature. This ensures that the gas cools down. Once this is done it returns to the evaporator coil where it converts back to liquid. This cycle repeats again and again.

Types of Air Conditioners

Air conditioners are designed for different purposes according to space and size of the area. It is better to be informed about the several types of air conditioners available, and select the ones suited to your needs or preferences. Since, this is a home appliance that comes out of a sizeable part of your home budget it is best to make a wise decision. Check these most common types of AC’s.

Central Air Conditioner

This is the biggest and most expensive air conditioner that is conventionally used, it is made up of two units. Firstly, there is the outdoor condensing unit consisting of three parts – the compressor, condensing coils, and fan. Secondly, there is the indoor evaporative unit - evaporator coils and air handler. They are connected to each other by the refrigerant tubing. The entire home is cooled as the heat is sucked outdoors and cool air is distributed through the ducts from a central unit. They are typically used for entire homes so do consider sizing it properly as a larger conditioner will not adequately cool or dehumidify the room and a smaller conditioner will not cool it enough.

Pros:	Cons:
Regulated and efficient cooling for entire homes in a minimum time	The installation and maintenance costs are high
Reduced humidity in the air	Units placed outside are susceptible to natural elements
It can be combined with the heating system	Consumes higher energy resulting in high electricity bills

 

Window Air Conditioners

Window air conditioners or “unitary” air conditioning systems are self-sustained units, usually placed under a window and sometimes through a space made in a wall outside. They are of different sizes so you can opt for the right one be it for a single room or a small area. A considerably large Window Air Conditioner, can easily cool a small home, in a single story space. Its workings are fairly simple with all the refrigeration components placed in a compact box. The heat is ejected out through condenser coils which are located on the outside facing part of the conditioner. The hot air is blown through the indoor located evaporator coils. Some water might drip due to the room moisture that condenses on the evaporator coils, so it must be tilted towards the exterior side during installation.

Pros:	Cons:
Cost-effective	Noisy, therefore inconvenient
Easy to install	Obscures the window view, and needs to be near an electrical source
Suitable for single-room cooling	Inefficient in larger spaces
No ductwork needed	Unsuitable for all types of windows

 

Portable Air Conditioners

Portable Air Conditioners as the name suggests are compact and free-standing, making them accessible and feasible. Similar to window air conditioners, they come in single units, with enclosed components. For charging place it next to a power outlet. Ensure that it is also near a window so that the air can be let out through the funnel. These ac’s are ideal for cooling temporary spaces, as well as smaller spaces like kennels, bathrooms, or storage. Some portable air conditioners have dual hoses, which extract the air from the exterior environment from one hose, cooling the compressor and exhausting to hot air to the exterior environment from the other hose.

Pros:	Cons:
Easily moveable	Comparatively less efficient
No permanent installation	Can be noisy
Perfect for temporary cooling	Requires a window or vent for exhaust

 

Ductless Mini-Split Air Conditioners

If you’re looking to cool only a portion of your home and avoid the hassle of unnecessary ducts the split system is the perfect choice. Often referred to as the ductless or "mini-split" air conditioner it is a divided system that is formed of two terminal units – the exterior condensing unit, and the interior evaporative unit that enables air cooling and distribution. They are commonly used in houses, hotels, and buildings without an HVAC system. In absence of electric heating, they act as heat pumps. New technology now ensures that you can use a smart ac controller to operate them from your phone.

Pros:	Cons:
Easy installation	Not cost efficient
Efficient for single rooms or areas	Has to be professionally installed
No hassle of ductwork	Not enough for larger homes

 

Hybrid Air Conditioners

Hybrid air conditioners is a system that uses both heating and cooling system. It uses the conventional electric heat pump combined with a gas-fuelled furnace. allowing for energy-efficient heating and cooling. If the exterior temperature drops the natural gas furnace triggers to heat the interior. The combination of two technologies improves energy efficiency and reduces environmental impact. This eco–friendly option also provides good indoor comfort, while automatically switching between heating and cooling as the temperature outside dictates.

Pros:	Cons:
Energy-efficient	High initial cost
Reduces heating and cooling costs	Complex installation
Eco - friendly	Shorter working span

 

Geothermal Heating and Cooling

Geothermal systems use the earth’s insulating properties to either heat and cool homes and other areas. While the temperatures above the earth’s surface may vary throughout the year, the temperatures below 4-6 feet of the earth’s surface remain consistent. This system just moves the heat around. The fluid mixture in the buried pipe absorbs the heat from under the earth to warm or cool your surface area. In the warmer climate, the heat pump transfers the heat into the earth.

Pros:	Cons:
Energy-efficient	High initial installation cost
Environmentally friendly	Requires a larger surface area for installation
Longer lasting	Potential issues with groundwater

 

How to Choose the Right Air Conditioner for Your Home

When selecting an air conditioner, you need to take a few things into account.

1 - Check the Size and Capacity

Before making decisions evaluate your cooling requirements. Identify the room size, layout, and climatic requirements. Essentially air conditioners are measured in British Thermal Units (BTU’s), so calculate the area using the square foot of your room. Following this, what you should do is, multiply the length of the room by the width. Follow the table for a better breakdown of units.

Room Size (Sq.ft.)	Capacity (BTU)
110 -250	5000-6500
250-300	7000-8500
350-550	9000-12,500

 

2 - Energy Efficiency

Naturally, investing in an energy-efficient unit can save you money in the long run. One of the top factors is to check for energy consumption. Air conditioners can rake up massive electricity bills so you should check their energy efficiency with SEER and EER, which will help to significantly decrease the cost of usage. For a more accurate reading you must refer to SEER or Seasonal Energy Efficiency Ratio. This rating helps monitor energy usage. It measures the cooling output during a given period. ER or Energy Efficiency Ratio, on the other hand, calculates the energy used during the entire cooling season, spanning many months at different temperature points.

3 - Budget Considerations

One of the main factors while selecting an AC is the budget. Additionally, you have the installation, and maintenance expenses. Some higher-end models may cost more but are long-lasting, efficient, and feasible. Window air conditioners can cost anywhere around $150 – $700 and portable air conditioners, around $100 – 500. If you’re not worried about added energy costs, then opt for a ductless air conditioner that ranges anywhere between $600 – $20,000. The revolutionary smart ACs can be a little pricier. Yet, if you consider it a great energy-saving investment, then you can buy them for $70 – $130 with varied functionalities. If you can afford it and it suits your larger areas then go for a central air conditioner. It is cost-effective in the long run costing between 1,500 – $4,000.

4 - Features and Technology

Modern air conditioners come with various features:

Heating System:

While AC's are commonly used for cooling some of them come with a built-in heating function. They are used during the colder months to increase temperature, eliminating any need for a separate heater unit. This makes it more economical.

Dust filter and Anti-bacterial feature: With rising pollution and health consciousness, newer ACs are equipped with anti-bacterial and dust filters. Once the contaminants are filtered you get cleaner air, so you don't need to buy an air purifier separately.

Dehumidifier:

Depending on the region you live in, you can also get an AC with a built-in dehumidifier. It removes the excess moisture, preventing dampness and the growth of microorganisms.

Auto Cleaning:

Most AC's have an auto-cleaning mechanism, which removes the mould and bacteria from the blower preventing any contamination of the air.

Sleep Timer: For the better economical usage most AC's come with a sleep-timer, so it can automatically shut off after a few hours of cooling.

Multi - Way Swing:

To keep the room uniformly cool, most AC's are equipped with a 4-way swing. The physical flaps move in all four directions - left to right and up and down - for even circulation.

Thermostat:

The in- built thermostat, determines the room’s temperature and the desired temperature, turning it off and on accordingly.

Smart Technology:

With smart technology, an AC with Smart Diagnosis can automatically detect issues and suggest solutions or technical support. They are also Wi-fi enabled, with remote operability, and even voice support like Alexa or Google.

Tips for Maximum AC Output

i - Correct Installation:

Enlist the services of a professional to install your AC. It is critical for optimal functioning and safety.

ii - Check the Air-Filter:

Check the AC's air filters, on a regular basis. This promotes better functioning and reduces costs. You can check it every 3-4 months once you have considered factors such as size, pets, air quality, etc. Additionally, Smart AC controllers can track and calculate the changing time.

iii - Monitor Extreme Temperature Change:

If you maintain a consistent temperature in your room, then your ac will efficiently cool the surrounding environment, and you can avoid unnecessary bills. Prepping your home for a certain temperature will decrease energy usage.

iv - Monitor Indoor Humidity:

If your indoor humidity is between 30 -50 % then your energy consumption will remain consistent. You can also opt for the dry mode.

Energy-Saving Tips

Upkeep:

Always clean or replace the air filters for better performance. Moreover, clean the coils, and check for adequate refrigerant.

Curtains and Blinds:

If you use curtains, shades, or blinds to block direct sunlight it can reduce the overall temperature in the room.

Sealing Windows and Doors:

Always keep the doors and windows sealed to prevent cool air from escaping.

Fan Mode:

When the external temperature drops then try using the fan mode.

 

Maintenance Tips

Regular Maintenance:

Regular maintenance includes cleaning filters and coils, to prevent increased energy consumption. Replace them every 3-4 months or as needed.

Check Refrigerant Levels:

Always check for low refrigerant levels as they can reduce cooling efficiency. Get it checked and refilled professionally.

Examine the Ducts and Vents:

It is ideal to examine the ducts and vents every fortnight. Keep the airflow clean as this also leads to a better quality of life.

Disturbances:

Conduct a thorough check for mechanical issues or mold growth consistently as this is a common occurrence. To ensure that you enjoy the most comfort and a disturbance - free room, you must remove them.

Replace the AC:

You should replace your air conditioner once it nears its duration as older units are less efficient and more prone to breakdowns.

In conclusion, buying an air conditioner will provide you with long-term comfort, and the benefits of healthier air, keeping you cool during those frequent heat waves. With the advent of smart technology air conditioners, also come with varied features, so they are adaptable to your lifestyle, and the climate. Whether you live in a large home or a single room, own buildings or farms, hotels or institutions, you can choose anything between a central unit, a split AC, a portable AC, a window AC, a hybrid AC, or geothermal heating and cooling systems. Select the size, function, or type and enjoy the comforts that modern technology has to offer.