AC: A complete guide

Thursday, June 6, 2019

Ductless Air Conditioning

Hey guys, some day or the other you might have heard about ductless air conditioning and wondered what it is and how it works. Well today all your queries about ductless air conditioning will be solved.

What is Ductless Air Conditioning:

A ductless air conditioner also referred to as a 'mini split system' or 'ductless mini split system' is an easy, convenient and efficient way to gain conditioned air without the expense or hassle of adding ducts to your home or business just for air-conditioning. A wall-mounted AC is also an ideal solution for homes that do not have a duct system or weren’t originally designed for air conditioning(homes from the mighty 90's).

How does Ductless Air Conditioning work:

All AC units uses the same outdoor components that cools the air inside a home. The difference with a ductless AC system is where that air is cooled and how it's distributed.

Central-air systems send refrigerant to a huge central air handler that then blows cool air into the house through a network of ducts inside your house. Ductless systems pump coolant to compact indoor units within individual rooms. Each split AC unit operates like a miniature air handler, delivering cold air into its own zone only when turned on.

Because there are no ducts, these systems don't have the air leaks, heat gains, or pressure imbalances that can significantly reduce the efficiency and comfort of a central-air setup. And installation is a really fast process. It's far easier and faster to fish a narrow bundle of insulated refrigerant lines through a house than to retrofit bulky ducts.

You're likely to save approximately 34% of electricity by replacing window AC units with a ductless system. Some some technical talk: It is approximately 3 feet long, 10 inches tall and 10 inches deep and is mounted on the wall. Most of the systems available in the market allow for 4 indoor units connected to 1 outdoor unit. That means you can cool 4 rooms with single outdoor unit. The outdoor unit, primarily known as a condensing unit consists of a compressor, fan and a condenser coil. This unit varies in size based on the needs of the area to be cooled and a number of indoor units, but is typically not any bigger than 45 inches tall and 36 inches wide. Depending on your cooling needs you may need multiple indoor and outdoor units to provide your home or business with adequate temperature settings.

An edge over split AC:

No heat loss : Moving conditioned air through duct network is really inefficient as discussed earlier in the article, with heat loss and leakage of as high as 25% in split systems. Cooled air is easily lost to unconditioned and leaky ducts, putting stress on your electrical system and causing huge losses. With no distribution components, ductless systems do not have this problem and they work more efficiently.
Better comfort control: With multiple indoor units, a zoned-centered cooling approach is possible with ductless systems, allowing for savings and improved comfort through micro-managing each part of your home for family member preference, unlike central systems, which measure temperature conditions according to the readings of a single, isolated(sometimes not) thermostat.
Higher efficiency: Ductless systems are extremely high SEER(Seasonal energy efficiency ratio), with some systems boasting ratings pushing 30 SEER (compared to the split system’s 14 SEER rating). Though ductless systems cost a little bit more on installation, those cost are more than recouped over the life of these extremely efficient cooling systems.
Quieter operation: Unlike the noisy drone of a split system’s interior blower and exterior unit, interior wall-mounted ductless components are quieter than a whisper(Not kidding guys), and outdoor components as quiet as a refrigerator.
Flexibility :Ductless systems are a great option for older homes that don’t have the space to accommodate duct-work – no boxy bulkheads, no lost closet space.

Guys I hope all your doubts about ductless AC's must be cleared. Still you can ask me anything related to this in the comment section below.

That's it for today guys, show some love and share it with all your friends and family. See you all in the next post.

Signing Off,
Your Geeky Friend

Which is Better: AC or Cooler

Your Geeky Friend AC vs Air cooler ,

AC vs Cooler

Hey guys, today we'll be discussing that whether you should choose AC over air cooler or air cooler over AC. Before starting with the comparison we should know the basic points of differences between the two of them.

Air cooler, as the name itself suggests that it just cools the air by passing it through cool padding(thus increasing the humidity). Air is cooled by making it more humid ,and hence it can only cool the air a few degrees below the ambient temperature, also it can only be well used in places of dry air, or rather where moisture content is less. In places of high humidity coolers won't be of great use.

Air conditioners(AC) can produce both cooling and heating effect in a room(which is the primary difference between both).Moreover an AC can control the humidity(which gives more comfort), or it can "CONDITION" the air ,hence the name. In many places it is observed that the AC is leaking, this water is a result of dehumidifying process. So AC can be used irrespective of whether a place is dry or humid. Also they can bring temperature much below the ambient temperature.]

Why you should choose an Air cooler:

Air Quality: An air conditioner circulates the internal air of the room over and over again, on the other hand, an air cooler pulls fresh air from outside atmosphere and cools it down. Also, air cooler doesn’t make the air overly dry(dehumidify the air) like an air conditioner. Because of the way it operates, an air cooler offers better quality of air for your room.
Carbon Footprint: Now this has been a topic of debate for over years now. We as responsible human are always concerned for 'Going Green'. Air conditioners use CFC (Chlorofluorocarbon) and HFC (hydro-chlorofluorocarbons) as their refrigerant(or rather coolant), which is harmful to the environment. On the other hand, air coolers are respectively more Eco-friendlier, since they use water as the coolant.
Economic Factor: We all are aware of the high cost of AC with respect to that of an air cooler. When it comes to value for money, an air cooler definitely scores high over an AC. Even though both end up cooling the room, an AC can cost anything upto ₹30,000 to ₹60,000, whereas a cooler will be available from ₹5000 to ₹15,000. Also, apart from the initial cost of purchasing, even the operating cost of an air cooler is less than an AC. You can expect 80% less electricity bill from a cooler as compared to an AC, making it economical in the long run.

Why you should choose an AC:

Less Ventilation: An AC can compensate for the lack of airflow if your room is stuffed with things all over and closed. AC can act as dehumidifiers and improve airflow within the room. In hot places like Delhi, this is literally a blessing in disguise!
Health issues & allergies: In the last few years, airborne diseases and allergies have been on the rise; more people are becoming increasingly sensitive to airborne triggers every day. To make things worse, the fluctuating day-night temperature brings no relief from the scorching weather. Having an AC would not only cool your room & keep you calm but keep you healthy in the long run as well.
High-rise buildings: In cities like Delhi and Hyderabad, having an flat on the top floor is probably a nightmare(Is day-mare a word- Tell me in the comments if anyone know about it :-). Apartments on the higher floors generally tend to heat up and trap heat all day, literally creating a furnace in the room. An AC would be just the thing to have in this seasonal heat wave. You can set the temperature that suits you and shut out the dust-filled dry outdoors.

I've made a comparison table for you guys,

Comparison Table:

S No.	Feature	Air Cooler	AC
1.	Price	₹5000-₹15000	₹25000-₹60000
2.	Fresh Air	Yes	NO
3.	Installation Requirements	Not required	You can't install it yourself
4.	Eco-Friendly	Yes	Nope
4.	In humid areas	Do not work well	Works perfectly fine
5.	Daily Maintenance	You'll need to fill water regularly	Mot required

Guys till now we have discussed all the points of differences and where one of them beats the other in one or the other aspect. Now, it's up-to you whether to choose an AC or an air cooler. Don't forget to consider the humidity stats, region, ventilation, area, economic factor.
#My Tip: If you’re not ready to commit to an AC full time and need it just till the monsoons arrive, renting an AC is what you want. AC rentals only cost a fraction of the buying price when compared to the EMI(Equated Monthly Installments) you’ll pay to actually buy one, trust me on this guys.

That's it for today guys, don't forget to share it with your friends and family.
Signing Off,
Your Geeky Friend

How an Split AC works?

Your Geeky Friend AC , how an split ac works

Split AC Working

Hey Guys, Today we'll be discussing about how an "Split AC' works.

Someday during the summers you might have wondered that how the AC that's keeping you fresh in the scorching heat actually works.

One interesting thing I would like to tell you is that the refrigerator and the air conditioner primarily works on the same methods. It's just that refrigerator cools on a comparatively smaller, insulated environment.

Your air conditioner uses chemicals that convert gas to liquid and back again very quickly. These chemicals transfer the heat from the air inside your room to the outside environment.

The AC unit has three key parts:

The compressor
The condenser
The evaporator

Your unit’s compressor and condenser are typically located in the outside part of the air conditioning system. Inside the house is where you will find the evaporator(Advantage of split AC).

The cooling fluid reaches the compressor as a low-pressure gas. The compressor compresses this gas/fluid, and the molecules in the liquid are packed closer together{Science guys must be having fun :-)}. The closer the compressor forces these molecules together, the higher the temperature rise.

This working fluid exits the compressor as a high-pressure, hot gas, and it moves to the condenser. The outside unit of an AC system has metal fins all around. These fins work like the radiator on a vehicle, and they help dissipate heat very quickly.

When the fluid leaves the condenser, it is much cooler. It’s also changed from a gas to liquid because of the high pressure. The fluid makes its way into the evaporator through a narrow hole and when the liquid reaches the other side of this passage, its pressure drops. When this happens, the fluid begins to evaporate to gas.

As this occurs, the heat is extracted from the surrounding air. This heat is required to separate the molecules of the liquid into a gas. The metal fins on the evaporator also help exchange thermal energy with the surrounding air.

When the refrigerant leaves the evaporator, it is once again a low-pressure, chilled gas. The process starts all over when it goes back to the compressor. There is a fan that’s connected to the evaporator, and it circulates air around the inside of the property and across the fins of the evaporator.

The air conditioner sucks air into the ducts through a vent. This air is used to cool gas in the evaporator, and as the heat is removed from the air, it’s cooled. Ducts then blow air back into the house.

This process continues until the inside air of your home or business reaches the desired temperature. When the thermostat(a device that automatically regulates temperature, or that activates a device when the temperature reaches a certain point) senses that the interior temperature is at the desired level, it turns the AC off. When the room heats up again, the thermostat turns the AC back on until the preferred temperature is achieved again.

This process can be better understood by looking at the below diagram:

A more comprehensive image:

That's it for today guys, I hope you must have understood the working of an split air conditioner. Don't forget to share it with your friends and family.

Signing off,

Your Geeky Dost

AC Tonnage

Your Geeky Friend AC , AC tonnage

AC Tonnage

If you're thinking of buying an AC for, you must know about choosing the correct AC Tonnage. Today we'll discuss about ac tonnage calculation according to room size.

The smallest unit is 1.5 tons and largest unit is 5 tons.

Today electricity is very expensive and you don’t want to waste it on running a unit that is too big. On the other hand, getting a system that is too small will not keep your house cool, so while you will save money, you will not have the optimal temperature control and you'll end up regretting your decision of buying an AC.

We will also show you how to do a DIY estimate to figure out the central AC unit size you need for your house.

The two methods of calculating are:

Area Method : To calculate, multiply the length and breadth of the room (in feet), take square-root of the answer and divide by 10. The resulting number will give the desired tonnage.
Volume Method : Alternatively, multiply the length, breadth and height of a room (in feet). Divide the answer by 1000. This is the tonnage required.

For example:

Using area method:

Consider that I have a room with dimensions 15x10.
Area=10*15=150 square feet.
Divide by 10: 150/10=15.
Take the square root: 1.247

Now it is clear that I must take a 1.2 tonne AC for my room.

Using Volume Method :

The room is 10 feet wide by 15 feet long and height is 20 feet (double height).

That means 10×15 x 20 = 3000 cu.feet.

(3000)/1000.

We get 3 T.

Choose an AC which is 3 Tonnes.

So basically for a room which is 3000 cu. feet (double height), we need to get 3 ton AC.

For your convenience I've made a table:

Less than 750 cubic feet 0.75 Tons.
Between 750 and 800 cubic feet 0.75 Tons.
Between 800 and 900 cubic feet 0.75 Tons.
Between 900 and 1000 cubic feet 1 Ton.
Between 1000 and 1200 cubic feet 1 Ton.
Between 1200 and 1500 cubic feet 1.5 Ton.
Between 1500 and 2000 cubic feet 1.5 Ton.
2000 to 2300 cubic feet 2 Ton.

Image form you can download-

That's it for today guys.

Signing off,

Your Geeky friend.

Choose The best AC for your Home or Office.

Your Geeky Friend AC , AC tonnage

How to choose the best AC?

A typical Split AC

In the scorching heat of this summer it has become necessary to install a AC at your home/workplace.

In the last few years the economic growth of India has enabled the customers to afford an comfortable AC and live an healthy lifestyle.

In this blog, I'll help you guys to choose the best AC according to your needs.

The key things you must know before buying an AC are primarily-

Capacity: The capacity of the air conditioner should be chosen depending on the floor size of the room for which the AC is required. A rough measure done by experts states that an area in range of 120 -140 Sq. ft. area will need 1 ton, 150 -180 Sq. ft. area will need 1.5 ton and 180 -240 Sq. ft. area will need 2 ton cooling capacity air conditioner.

Installation requirements: The window AC is a compact unit designed to be attached to the windows. A split AC has a compressor unit outside the house and one indoor unit inside the room, specifically designed for better flow of air. Installation should always be done from an authorized service center. The performance parameter of AC depends on a good or bad installation.

Energy efficiency: Today, with rising mercury levels and increasing electricity tariffs, an energy efficient model of air conditioner is a must-buy. Air conditioners come with star rated energy efficiency ratings; also called EER(Energy Efficiency Ratio), which has been standardized by the Bureau of Energy Efficiency (BEE). Therefore, any unit with more stars will consume lesser electricity than one with a lower star rating.

Split or window AC: Another deciding factor is whether you want a window AC or a split model. Though window units are cheaper and easy to install, split AC are quieter, aesthetically more pleasing and provide better air distribution.

Usage: If your AC usage is 8 to 10 hours a day for 3 to 4 months, it is recommended to buy at least 3-Star rated AC. In case AC usage is extended 5 to 7 months, you should opt for 5-Star rated AC. For usage of 10 to 12 months one should opt for cooling only or Hot & Cold Inverter AC.

Product Price: Price is another important factor to consider as more features and higher star ratings account for a higher price tag. For every star rating increase there is an increase of around Rs 2,500. An Inverter AC is usually 20% higher than a 5-Star rated Split AC.

Air Quality: Indoor air quality is very important while deploying AC at home; hence AC with a good filter is extremely important to improve indoor air quality. A good filter not only ensures clean air but also enhances the cooling performance and energy efficiency of AC by preventing the choking of evaporator coil due to dust.

Multipurpose: Nowadays, AC is not just used for cooling, but as a multi seasonal product which can also be used in inters or heating. These Hot & Cold Air Conditioners also save up to 35% more energy than heaters. Air conditioners are also the best cooling devices for Humid weather. Special cooling functions are required for optimum cooling and maximum comfort during monsoons. So look for an AC with features which can control humidity and give more comfort in Monsoons.

After sales services: After sales services and other add-on features like warranty would certainly be a plus for your purchase. Look for a service oriented brand which has the capabilities and good network to meet the servicing need of your product.

Exposure to Heat & Sunlight: If your room is closer to kitchen or the wall of your room is directly exposed to the sun , you’ll need an air conditioner with higher cooling capacity.

Room Size: The size/capacity of the AC should be as per the size of your room. If it is bigger it will not be able to provide proper de-humidification and the smaller one will cost you more in terms of energy consumption. Room AC are available in capacity range of 0.75 to 2 tonne. Inverter AC with variable tonnage can be used for a wider range of room sizes.

Brand: You should carefully choose an air conditioner brand which fulfills your need of maximum energy saving through highest EER(Energy Efficient Ratio), best cooling performance and extensive after sales service. The air conditioner you choose should have functions which provide faster cooling in summers, optimum comfort in monsoon and also protects from disease causing virus, allergens and insects like Mosquitoes, etc.

Weather conditions: While choosing an AC, one should look for air conditioners that can work efficiently even in extreme weather conditions of Indian summers(especially the south & west side)

I'll be making a comprehensive review for the top 10 AC available in the market which will act as a guide for you to choose the perfect AC.

That's it for today guys,
Signing off,
Your Geeky Dost.

Top 10 Air Conditioners

Your Geeky Friend AC , ac brands

Top 10 AC

Are you thinking of buying a split air conditioner for your home to keep out from heat this summer?
Well here at"Coolest AC" we have prepared a list of top 10 air conditioners you can buy for your home or office.
The list goes as:

1. Voltas SAC 173IY 1.4 Ton Split AC.
2. LG JS-Q18AFXD Dual Inverter Split AC
3. O General ASGA18FTTA-1.5 Hyper Tropical Split AC
4. Hitachi Neo 5200F RAU518HWDD 1.5 Ton
5. Whirlpool Fantasia 1.5 Ton Inverter Split AC
6. Blue Star 5HW18ZARTX 1.5 Ton AC
7. Voltas 185JY 1.5 Ton Split AC
8. Carrier Esko 12K 1 Ton Split AC
9. Samsung AT12MC3JAMC 1 Ton Split AC
10. Kenstar KSZ35 WS1-MDA 1 Ton Split Air Conditioner

1. Voltas SAC 173IY 1.4 Ton:

It is non arguably the best split air conditioner available in the market. It comes loaded with a ton of features like automatically fine-tune the room temperature, LCD remote, anti-bacteria mesh, auto restart, auto diagnosis and a lot more.
However the con is that it is little on the expensive side.
Check latest price on Amazon: https://amzn.to/2EWJlcb

2. LG JS-Q18AFXD Dual Inverter Split AC:

The LG Dual inverter split AC is a full-size AC that has a great performance and consumes low energy. This AC comprises of a 1.5 Tons cooling capacity and provides a 1-year warranty.

The LG 1.5 ton split AC has the Himalaya cooling technology which offers you the instantaneous cooling, smart airflow, enhanced cooling, and the monsoon comfort technology gets all the humidity away.

However the con is that it is not energy efficient.
Check latest price on Amazon: https://amzn.to/2W6wFVM

3. O General ASGA18FTTA-1.5 Hyper Tropical Split AC:

O General is acquiring a good name for itself in the Indian market since they are able to provide amazing ACs at a decent price, which is the primary requirement for Indian market.

It provides a twin filter, automatic restart option, rotating compressor, and several other features which you might barely get at this price point. It contains a 1.5 tons capacity along with a 3 stars rating. It provides 3670 Watts of cooling capacity together with 1136 Watts of power consumption.

This has also provided a 1-year warranty on the AC and 5 years warranty on its compressor.

Con is that its filter is not that great.
Check latest price on Amazon: https://amzn.to/2QAhAKQ

4. Hitachi Neo 5200F RAU518HWDD 1.5 Ton:

Hitachi has made use of the power air stream flap, which makes the air to reach the longest end of the room or space in which the AC has been installed.

It has been given a 3-star rating but owing to economic price, you may try to give this 1.5 ton Split AC a shot. Hitachi Split ac 1.5 ton has provided auto restart, dust filter, and a rotary compressor with this unit. This air conditioner has 5000W of cooling ability and consumes 1560W of power.

However, it is very costly.
Check latest price on Amazon: https://amzn.to/2W7KSlr

5. Whirlpool Fantasia 1.5 Ton Inverter Split AC:

It is the most economical air conditioner having the 5 stars rating along with a 1.5 Tons capacity. It comprises of 5200 Watts of cooling capability and consumes 995 Watts of power while working.

Whirlpool has provided the silver-ion filter and the anti-bacterial filter as well.

Whirlpool has further provided a 4 years warranty on the compressor along with a 1 +1 year warranty over the air conditioner.

It does not have any external features.
Check latest price on Amazon: https://amzn.to/2XgXkAA

6. Blue Star 5CNHW18QATX/IC518QATX Inverter Split AC;

It provides a really influential cooling, barely takes just 5 minutes to completely cool your area. Additionally, the reason a lot of offices makes use of the air conditioners from Blue Star only.

Blue star has provided the amazing anti-bacterial, anti-acarine, dust, active carbon, silver ion, and catechin filters in this cooling unit. It comprises of a cooling capability of 5300 Watts, 1600 Watts of power.
Check latest price on Amazon: https://amzn.to/2ELsXep

7. Voltas 185JY 1.5 Ton Split AC:

It comprises of an LCD remote control by means of which you will be able to maneuver this AC in a better fashion. Voltas has provided the anti-bacteria mesh, auto restart, auto diagnosis, auto clean, and twin temperature facilities and a lot more.

The voltas 1.5 ton split ac provides 5050 Watts of cooling capability, 1430W of potent power, and rotating compressor. Voltas Split ac also provides a 5 years warranty on its compressor and a 1-year warranty over the air conditioning unit. The voltas split ac 1.5-ton price is a bit higher!
Check latest price on Amazon: https://amzn.to/2WgAA78

8. Carrier Esko 12K 1 Ton Split AC:

Carrier Esko 12k 1.5-Ton Split AC from Carrier offers powerful cooling. The cooling capacity is 5250 Watts which is higher than other 1.5 ton Split AC. It will work great in a room with an area of around 120-150 sq feet.

One useful feature is smart time guard which is an Intelligent timer in this carrier Split AC. It protects the compressor by ensuring that there is a minimum compressor off time of three minutes.

This allows instant availability of compressor cooling after a power failure in excess of 3 minutes. If the power failure is of duration less than 3 minute, the AC keeps the compressor off and ensure 3-minute delay.
Check latest price on Amazon: https://amzn.to/2EKgaZM

9. Samsung AR18NV3HFTRNNA 1 Ton Split AC:

Like many other companies, Samsung has also updated its entire range of AC's this year and this 1 ton AC comes with best of Samsung’s technology.

To keep you protected from scorching heat, the AC lets you cool the room down really quickly, while it can also keep the humidity under check during the monsoon season.

It is also one of the best Split AC in India, but not better than those listed above

Check latest price on amazon : https://amzn.to/2ELtj4w

10. Godrej 1.5 Ton 3 Star Split AC:

This Godrej 1.5 Ton 3 Star Split AC 1 Ton has a rating of 1-ton, so if you use your AC for around 2-3 hours in a day, this AC would be economical in terms of electricity consumption but if you use AC for around 8-10 hours a day, we would highly recommend you to buy the 5-Star AC.

This AC has a cooling capacity of 3421 Watts and comes with all the basic features like auto restart, de humidification, anti-bacteria filter and a dust filter making it a great value for money product. In terms of cooling and build quality, Lloyd AC scores decently well if not the best and you would not have any complaints.
Check latest price on Amazon: https://amzn.to/2QDbNnL

That's it for today guys, if you want to ask any questions about the AC's listed above you can comment below and I"ll try to answer your queries,

Signing Off,

Your Geeky Friend.

Thursday, June 6, 2019

Ductless Air Conditioning

Ductless Air Conditioning

What is Ductless Air Conditioning:

How does Ductless Air Conditioning work:

An edge over split AC:

Wednesday, June 5, 2019

Which is Better: AC or Cooler

AC vs Cooler

Why you should choose an Air cooler:

Why you should choose an AC:

Comparison Table:

Monday, June 3, 2019

How an Split AC works?

Sunday, June 2, 2019

AC Tonnage

AC Tonnage

Saturday, June 1, 2019

Choose The best AC for your Home or Office.

How to choose the best AC?

Friday, May 31, 2019

Top 10 Air Conditioners

Top 10 AC

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