The AO Smith Geyser as a product is very poor. It's been only 2 months passed and is not working and from start it didn't worked at all. Very poor service and no response on service request. Automatically the service request got cancelled without any conversation. Kindly restrain from buying AO Smith products. Very bad and annoying product and service respectively. Guys do not buy take this as a warning. I am giving very fair comments.