Imagine it’s a cold winter day in India, and you are already late for work. You desperately need hot water right now. You go to the bathroom and turn your geyser on, and wait. This is a very common situation during the wintertime in Indian households. People usually think about how we can get a quick, reliable supply of hot water without using a lot of electricity. Not only this, but the focus of people is now also shifting towards living sustainably. Homeowners are now reconsidering the type of water heaters they install. They want to invest in something that…