Available in 30kW and 40kW combination boilers, the Murelle Advanced HE ErP is among the most intelligent, practical and comforting combination boilers on the market. With its three star domestic hot water delivery, active combustion control, large user display and built-in service reminder, the Advanced is packed full of technology to effectively and efficiently deliver its users' heating and hot water demands. We are so confident with the reliability of this product we are able to extend warranties up to ten years.