Achill 17.5kW Insert Boiler (Eco)

The Achill 17.5 stove is a multi fuel eco boiler insert, delivering warmth and comfort to your home. The Class A+ energy rating with eco ready outputs ensure an efficient heating solution, while the clean and sleek insert design in a matt black finish adds a touch of class to your fireplace. The cast iron door is durable and easy to clean, and the air-wash system ensures a clear view of the fire.

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  • Description
  • Additional information
  • Specifications
  • Diagram
3 Year Warranty – Boiler Stoves

1 Year standard manufacturer’s warranty as in accordance with EU regulations. 2 years extended warranty will be added if the stove warranty is registered Online within the first 3 months of purchase of your new Henley room heater stove.

Defra Exempt

DEFRA exempt and has been fully tested to this standard. A Defra exempt stove can be used in a Smoke Control Area whereas a non-DEFRA stove cannot.

External Air

The stove has an external air facility allowing the air to come directly from outside your building rather than through a vent in the room. This is required for heat recovery systems in new build projects.

Clean Burn

This advanced unit features a territory air system, which creates a clean-burn system where hot air is pushed into the firebox above the normal height of the fire. This allows the excess gases to combust given a cleaner burn


All Henley stoves come with an air wash system which helps to keep the glass clean. It uses a specially placed vent or vents to draw in air from the outside which will wash over the front of the glass.



Stove Type


Fuel Type


Output to Room

6 KW

Output to Water

4.1kw – 11.5kw


Fuel Multi Fuel
Heat Output:10.2 kW –*17.5kW max
Output (Room):6.1 kW –*6kW max
Output (Water): 4.1 kW –*11.5kW max
Efficiency:83.2% – *
Energy Rating A+
Flue Size:153mm
Primary Airtake: Yes
Secondary Airtake: Yes
Advanced Airwash: Yes
External Air Supply:
Defra Exempt:
HETAS Listed: