Gorilla and EESL Ceiling Fan
Around two years back, EESL announced that they would be distributing 5-star (50-55 watt) fans. Based on the success of their LED scheme, UJALA, they decided to do the same thing with fans. They started distributing fans at a very cheap rate of Rs 1,150.
At the outset, EESL’s scheme seemed like a smart move- changing old and inefficient 70-watt fans with 50 Watt fans. It was a step towards making India energy efficient. But, when we look closely, there were some inherent flaws in their ceiling fan program:
- First is the fact that 28 W ceiling fans were already available in the market. They repeated the same mistake that they did while promoting CFL when LEDs were just evolving.
- The fan quality was not satisfactory. The fans that EESL launched through their scheme had very low RPM and poor air delivery. Also, the materials used were of cheap quality. These factors not only ruined the overall performance of the fans but also shortened their lifespan.
To back this, we procured an EESL fan and tested it at our premise (due to lack of any independent agency willing to do the same). After testing, we found that on every parameter, Gorilla or for that matter any other BLDC fan is much superior to EESL fans. Although an EESL fan may seem cheaper at the outset, the lifetime cost of owning an EESL fan will be way more than that of a Gorilla or any other good quality BLDC fan.
The results of our tests are documented below.
How a Gorilla Fan is better than EESL Fan
- Life of Fan
Gorilla fans use BLDC motors which are at present, the most energy efficient motors in the market. It can generate the same output RPM and CMM as any 70 Watt fan at a power consumption of just 28W. These fans do not get heated up even after running for a long time. Also, since there is no heating issue, there is no risk of the burning of the motor coil. These features not only make Gorilla fans energy efficient but they also considerably increase the life of the motor.
- RPM and Air Delivery
Ceiling fans are the most energy efficient and economical means of cooling a house. The parameters of a ceiling fan, that is, its RPM ( speed) and CMM( air delivery) depict how effective it is. Going by the chart above, the EESL fan fails miserably when compared to a Gorilla or any other BLDC fan. EESL fans only consume less power when they run at low speeds, and that is just not going to suffice in a tropical country like India. Apart from the BLDC motor, Gorilla fans also use aluminum bodies and blades whereas EESL fans use sheet metal for their bodies. Aluminium is much lighter and rust-resistant. The lighter bodies and blades of Gorilla fans contribute to higher air delivery.
When it comes to a Gorilla fan, even though the power consumption is just 28W, the RPM is around 380, and the air delivery is 230. So, you can save a lot of money without ever having to compromise on your comfort.
- Product Finish Quality and Material Used
The look and finish of ceiling fans is also an important factor. Since it occupies the central location in any room, these overall finish and quality of the ceiling fan should be good. When we evaluated the EESL fan, we found that there are several issues.
- Improper coating
- Shade variation and dust point over the surface
- Less DFT (<50)
- Unbalanced blade
- DFT < 50
- Sheet metal cover
- Unbalanced cover
- Shade variation
The canopy of EESL fans has sharp edges and is made from a hard material that is brittle. So, these can easily break.
Gorilla uses NISIKI shielded bearing (6202 ZZ) (well-known brand) with 75-80% greasing. EESL fans use K-Tech 6202 Open Type Bearing. Using shielded bearing gives the following advantages:
- It prevents metal to metal contact which reduces friction, keeps the bearing from being noisy, and increases the life of the motor components.
- Minimizes the cage wear and tear by reducing the slide friction.
- Serves as heat exchanger agent.
- Unsealed bearings must be lubricated at regular intervals to prevent the fan from lagging and becoming noisy, whereas the manufacturer lubricates sealed bearings and never need to be greased again.
- While in sealed bearings there is no danger of accidental over-lubrication, in unsealed bearings this is a prevalent issue. More often than not, unsealed bearings become victims of over-greasing.
- Total Lifetime Cost of Owning an EESL Fan V/s Gorilla Fan
The primary selling point that EESL had been widely promoting was the price of their fans. But when seen from a cost-effective view, you will find that since the quality of these fans has been compromised, they are not durable.
Below is a table that shows a comparison between the lifetime cost of owning an EESL Fan and that of owning a Gorilla Fan.
For the calculations, we have assumed a ten year period. Although most fans will work for more than 15-20 years
As you can clearly see, choosing a Gorilla fan over EESL fans will help you save around Rs 3,400 in ten years.
To conclude, it cannot be denied that the government and EESL had their hearts in its right place when they introduced the program for energy efficient ceiling fans. But the scheme was not very successful as fans with BLDC motors are increasingly taking hold of the market, owing to their excellent performance and energy efficiency.Gorilla and EESL Ceiling FanFebruary 14, 2018
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