The pellet boiler series pellettop scores with ease of use and a compact design. As of March, the popular boiler will be available in an intermediate size with 45 kW output. While the next in size pellettop 49 has a similar design to the pellettop 70 series, the new development has been adapted to its smaller sibling for applications up to 35 kW in terms of shape and dimensions, making it extremely compact.