Atomberg Renesa 1200mm BLDC Smart Ceiling Fan with Remote vs Symphony Diet 12T 12-Litre Personal Tower Air Cooler

What separates them

These two differ on 10 recorded specifications. The Symphony Diet 12T 12-Litre Personal Tower Air Cooler is ₹2,600 dearer.

Atomberg

Atomberg Renesa 1200mm BLDC Smart Ceiling Fan with Remote

₹3,690

28 W against 75 W is the whole argument, and it is a real one: at 8 hours a day this fan costs about Rs320 a year to run where a conventional induction fan costs about Rs640.

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Symphony

Symphony Diet 12T 12-Litre Personal Tower Air Cooler

₹6,290

Evaporative cooling costs about a tenth of what an air conditioner costs to run, and the reason is that it does not remove heat -- it converts sensible heat into humidity.

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Who the Atomberg Renesa 1200mm BLDC Smart Ceiling Fan with Remote is for

Buy it if: Anyone running fans long hours, especially where mains voltage sags.

Avoid it if: Anyone using a fan occasionally -- the payback period stretches well beyond the warranty.

Who the Symphony Diet 12T 12-Litre Personal Tower Air Cooler is for

Buy it if: Anyone in dry inland heat wanting cooling at roughly a tenth of an air conditioner's running cost.

Avoid it if: Anyone in Mumbai, Chennai, Kolkata or any coastal humidity -- evaporative cooling does not work in damp air.

Specifications, side by side

10 of 22 rows differ. Differences first.

Specification	Atomberg Renesa 1200mm BLDC Smart Ceiling Fan with Remote	Symphony Diet 12T 12-Litre Personal Tower Air Cooler
Price	₹3,690	₹6,290
Annual energy use	Roughly 40 kWh a year at 8 hours a day, about Rs320 -- against roughly Rs640 for a conventional induction fan	Roughly 110 kWh a season at 8 hours a day for 90 days, about Rs880 -- against roughly Rs9,000 for a 1.5 ton air conditioner over the same period
BEE rating year	2023 rating year	Not applicable
BEE star rating	5 star	Not rated -- BEE does not cover evaporative coolers
Capacity	1200 mm sweep, rooms up to about 14 square metres	12 litre tank, rooms up to about 10 square metres
Dimensions	1200 mm sweep	30 x 30 x 84 cm
Installation	Ceiling hook, standard down rod	Free standing, needs an open window
Noise level	About 32 dB	About 52 dB
Rated power	28 W at top speed, against 75 W for a conventional fan	185 W
Refrigerant	Not applicable	None -- water evaporation
Weight	4.2 kg	7.5 kg
ISEER	Not applicable	Not applicable
Warranty	1 Year Official Brand Warranty	1 Year Official Brand Warranty
Air delivery	235 cubic metres per minute	not published
Air throw	not published	About 6 metres
Cooling method	not published	Evaporative -- water absorbs heat as it evaporates, which also adds humidity
Motor	BLDC -- brushless direct current	not published
Payback	The roughly Rs1,500 premium over a conventional fan returns in about four to five years of 8-hour daily use	not published
Speeds	5, by remote	not published
Ventilation	not published	Requires an open window; a sealed room becomes humid and uncomfortable
Voltage tolerance	Runs at full speed from 140 V, where an induction fan slows noticeably	not published
Where it does not	not published	Coastal humidity. In Mumbai or Chennai it adds moisture to already saturated air and provides little cooling
Where it works	not published	Dry heat. In Delhi or Jaipur in May it works well

Every row is a figure one or both products record. A blank is a figure the catalogue does not hold, not a zero.

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