I glad to give review about the Hitachi RAU412HTD model my personal experience which iam using from last one year it is bit hard to buy this product but after buying this product every consumer feels that yes what I choice is correct coming to product HITACHI consumes low electricity and with in minutes it makes the room cool and it had a lot latest specifications and most important point is that it is a eco - product and the service is also to good with in 24 hrs they installed. Keep your home cool and makes your happy throw HITACHI A/C thank you guys