Q. How to use instant geyser?

Here is the guide: Be sure water is flowing into the instant geyser but don't turn on the faucet just yet. For a 3 kilowatt instant geyser the water needs roughly 60 seconds to reach boiling point. Keep an eye out for the neon light that says the water is OK to get in. If your home instant geyser doesn't have a neon indicator you can still get the hot water you need by opening the outlet and adjusting the flow.