Warmflow Agentis External 21kW Combi Oil Boiler E21C
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Warmflow Agentis External 21kW Combi Oil Boiler E21C

About this product

The Warmflow Agentis External 21kW Combi Oil Boiler E21C is a high-efficiency condensing oil combi boiler designed for outdoor installation, ideal where indoor space is limited. Manufactured by Warmflow, this floor-standing boiler delivers a 21kW output and provides both central heating and instantaneous hot water without the need for a separate cylinder. It features an ErP A/AA efficiency rating, a patented stainless steel heat exchanger and a Riello low NOx burner for improved performance and reduced emissions. The IP45-rated weatherproof casing ensures durability in external conditions, while built-in components such as an expansion vessel and integrated programmer support efficient, reliable operation.

Key features

  • 21kW oil combi boiler for heating and hot water
  • Designed for external use with IP45 weatherproof casing
  • ErP A/AA rated for high energy efficiency performance
  • Stainless steel heat exchanger for durability and reliability
  • Integrated expansion vessel and 7-day programmer included
  • Riello low NOx burner reduces emissions and improves efficiency

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