GOOD QUALITY GEYSER vs BAD QUALITY GEYSER - अंदर क्या होता है?

Hello friends,
In this video i explain difference between Good and Bad geyser and how geyser works in short along with basic electrical circuit diagram.
Link of this good quality AO SMITH Hot water instant geyser: amzn.to/3nZXlpT
Old unboxing and first use video of this geyser: • सबसे बेस्ट WATER GEYSE...