The CTW-Series is a type of water tube boiler that operates on a principle of combustion known as reverse flame. This coil-type boiler uses high-pressure water that circulates at high velocity to increase heat flux and combustion efficiency. It is a fully automatic boiler that turns on and off automatically based on a preset steam pressure set on the pressure switch. Additionally, these boilers are non-IBR, which means they do not fall under Indian Boiler Regulation, making them a reliable and cost-effective choice.