Nano Instant12 geyser is worst small type geysar as its price at the market is around 5000 INR, as its name is Nano Instant it does not work fastly or instantly, it takes a lot of time to heat the water and its power consumption is 3000 watt. Its water tank Capacity is 3 litres. It make a lot of noise while heating the water, it has a low quality of plastic cover which starts melting after a month of use only, the length of its wire is very very short, the water leakage starts after 2 month of useand it does no justify its price. This geysar cannot not satisfy a common man needs.