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Thanks Mahesh.. Love crystal clear water too, never ending process of improving the water quality..

Some more pictures..

Actually most are my sons’ toys. Lol Sent from my iPhone using Tapatalk

Nice. Have fun with your start-up! [emoji12] Sent from Singapore Reef Club mobile app

Bump!

The 1/4HP rating is just for the compressor. You need to factor in power needed to run the fans & electronics. So, using the 400W number is correct in your calculations - that is the real power usage. Real Power (P) for AC circuits = Current (I) x (Voltage) x Power factor (pf) Old reference on Artica chillers. Its about the same. 1/10 hp = 225W 1/5 hp = 360W 1/4 hp = 430W 1/2 hp = 600W Also, for the cost calculations, factor in only the time the chiller is on. And the on time for day is different for night. Assume 400W chiller and on a total of 4.5hrs a day (based on chill 40min + 3hr off for each cycle). It'll come to roughly about $0.43 a day or $13.20 a month based on 23.65 cents per kWh tariff.