The Glow-Worm Energy 30S Erp System Boiler 10035903 is a reliable and efficient heating solution designed for modern homes. Engineered to meet ERP standards, it delivers consistent performance with reduced energy consumption. Its compact design allows for easy installation in various spaces, while advanced controls ensure precise temperature regulation. Ideal for system heating setups, this boiler offers durability and low maintenance, providing homeowners with dependable warmth and energy savings.