Symphony Diet 12T 12-Litre Personal Tower Air Cooler vs Blue Star Bottom Loading Water Dispenser (BWD3FMRGA)

What separates them

These two differ on 9 recorded specifications. The Blue Star Bottom Loading Water Dispenser (BWD3FMRGA) is ₹6,700 dearer.

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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Blue Star

Blue Star Bottom Loading Water Dispenser (BWD3FMRGA)

₹12,990

Two specifications separate this from the cheap dispensers it sits beside.

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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.

Who the Blue Star Bottom Loading Water Dispenser is for

Buy it if: Homes and small offices getting through a 20 litre bottle regularly who want both hot and genuinely cold water.

Avoid it if: Anyone who thinks this purifies water -- it does not filter anything at all.

Specifications, side by side

9 of 22 rows differ. Differences first.

Specification	Symphony Diet 12T 12-Litre Personal Tower Air Cooler	Blue Star Bottom Loading Water Dispenser
Price	₹6,290	₹12,990
Annual energy use	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	Roughly 400 kWh a year running continuously, about Rs3,200 at Rs8 per unit
BEE star rating	Not rated -- BEE does not cover evaporative coolers	Not rated -- BEE does not cover water dispensers
Capacity	12 litre tank, rooms up to about 10 square metres	20 litre bottle; 3 litre hot, 3 litre cold reservoir
Dimensions	30 x 30 x 84 cm	33 x 33 x 97 cm
Installation	Free standing, needs an open window	Free standing, needs a mains socket
Noise level	About 52 dB	About 40 dB when the compressor runs
Rated power	185 W	500 W heating, 100 W cooling
Refrigerant	None -- water evaporation	R134a
Weight	7.5 kg	17 kg
BEE rating year	Not applicable	Not applicable
ISEER	Not applicable	Not applicable
Warranty	1 Year Official Brand Warranty	1 Year Official Brand Warranty
Air throw	About 6 metres	not published
Child lock	not published	On the hot tap
Cooling	not published	Compressor, not thermoelectric, so it genuinely chills rather than merely cooling
Cooling method	Evaporative -- water absorbs heat as it evaporates, which also adds humidity	not published
Hot water	not published	Reaches about 90 degrees C
Loading	not published	Bottom loading -- the bottle sits in a cabinet, no lifting a 20 kg bottle overhead
Not a purifier	not published	This dispenses and conditions bottled water; it does not filter or purify anything
Ventilation	Requires an open window; a sealed room becomes humid and uncomfortable	not published
Where it does not	Coastal humidity. In Mumbai or Chennai it adds moisture to already saturated air and provides little cooling	not published
Where it works	Dry heat. In Delhi or Jaipur in May it works well	not published

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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