I have bought AO smith geyser HSE VAS 25 liters model.it is a five star rating geyser.it is take 25 minutes for heat the water.it is consumes half unit of electricity for heat 25 liters water.you can set the heating leval as your requierment.it is comes with the auto cut facility.the warranties of this geyser is 7 years.i m using this daily without any problem.it is looks good.i m fully satisfied from this geyser.
Go for it.its best brand in geyser.