The Warmflow Agentis External Combi Oil Boiler (21kW) is a top-tier solution for efficient home heating and hot water needs. As the UK's only AA-rated boiler, it ensures optimal performance with reduced energy consumption.

Designed for outdoor installation, this compact unit frees up valuable indoor space, while its IP45-rated weatherproof casing protects against the elements. With a built-in frost stat, its equipped to handle the harshest conditions, ensuring reliable operation all year round. The 24-litre expansion vessel allows for greater water pressure stability, enhancing system efficiency and longevity. Supported by a 5-year manufacturer warranty, this boiler promises peace of mind and long-term savings for any household.

• External combi oil boiler with 21kW power output
• Weatherproof IP45-rated grey casing for durability
• Designed for outdoor installation to save indoor space
• UK's only AA-rated boiler for top energy efficiency
• Integrated 24-litre expansion vessel included
• Frost stat protection to prevent winter freezing
• Suitable for central heating and instant hot water
• Manufacturer warranty of 5 years for peace of mind