DRS boiler is high-tech, energy-saving and environmentally friendly independently developed by our company that integrates electromechanical, combustion and heat exchange. The boiler adopts a modular design. The body is composed of tight spiral coils and is combined with enhanced heat transfer modules to form a three-pass flue gas structural solution. Mosquito-coil-shaped coils are installed at the front and rear of the furnace, and transition coils are installed at the gaps in the inner coils. The entire furnace is completely covered by oil pipes. The application of enhanced heat transfer modules gives the boiler a sufficient heating area, combined with an efficient fully oil-cooled fireplace, to ensure that the boiler’s thermal efficiency and environmentally friendly emissions meet regulatory requirements.