Add a Stainless Steel Hot Water System to your Eco Rocket Stove very simply and easily. This system uses the waste heat from the exhaust flue to heat up water without interfering with the heating and cooking options on the stove itself. Coming in 12 and 25L options, these hot water systems will heat up the full contents of the tank while you are heating and cooking normally, and can be used for washing, drinking or even as a heat battery. The 12L option stores up to 1kWh of energy and the 25L will store 2kWh of energy, which means they will continue to heat the room after the fire has gone out.  https://bit.ly/3IFbjHp