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Opus Calypso Woodburning Boiler Stove

From: £3,630.00

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Opus Calypso Woodburning Boiler Stove

The Opus Calypso stands out as a robust wood-burning boiler stove, compliant with the latest SIA Ecodesign regulations—truly a distinctive offering in the industry. Boasting a total output of 8.3kW, it efficiently allocates 3.4kW to the room and 4.9kW to the boiler, making it capable of heating water for radiators or showers for a standard sized living space.

Featuring an open-fronted log store for convenient log storage and a small cavity above the firebox to keep a kettle warm, the Opus Calypso combines practicality with style. A sleek chrome handle is positioned on the right side of the curved door, and the large glass viewing window is kept impeccably clear through a robust airwash system.

With a spacious internal firebox accommodating logs up to 330mm in length, this stove allows you to relish the flame pattern for extended periods. Take full control of the burn rate with two air control levers conveniently located just beneath the door.

Wood needs high temperatures and a precise supply of oxygen to burn. Opus stoves are designed to optimise the burning conditions in the fire chamber.

Supplied from below the burning wood and used as a ‘boost’ for starting the fire, or when you have added fresh logs.

An Opus stove has two outer layers with an air gap between them. Cool air is drawn up from the floor, heated by the body of the stove, and then released out through holes at the top. This makes for a more even spread of heat in the room and keeps the body of the stove a little cooler.

This preheated air flows down the inside surface of the window, feeding the fire and keeping the glass clean. Once the stove is hot you control the burn rate by adjusting this secondary air.

Preheated air enters higher up at the back of the fire chamber through a series of holes. Look here for dancing, floating flames as the gases given off by the wood combust.

Two easy to use levers give you full control of the burn rate of your stove

Our cylindrical models all have a 2 or 3 point door mechanism, giving a positive feel and a firm closure.

All Opus stoves can be connected to an external air duct. The air needed for combustion is taken fromoutside the house, not from the room. This reduces draughts in your home, helping to preserve valuable cosy heat.

Eco Design Ready
Defra Approved
Heat Output: 8.3kW
Efficiency: 83.9%
Energy Rating: A
Fuel Type: Wood
Flue Size: 150mm (6″)
Flue Options: Top only
Built From: Steel
Colour: Black
Style: Contemporary
Height: 1166 mm
Width: 565mm
Depth: 462mm
Distance To Combustibles – Sides: 100mm
Distance To Combustibles – Rear: 100mm
Optional External Airkit


Stove Type





External Air Kit

No, 100mm Stainless Steel 1.5m, 100mm Stainless Steel 3m

Small Item Delivery: Our parcel couriers deliver on weekdays between 8am and 8pm. Smaller items are sent via courier. Please inspect your item upon delivery as you have 24 hours to report any damages.

Large Item Delivery: Delivery hours are between 8am and 5pm Monday to Friday. Larger items may arrive on a pallet. Please note that drivers cannot move pallets across certain surfaces or into properties. They will only move the pallet to the kerbside. Consider factors like parking restrictions and delivery vehicle size.

Delivery Charges: Delivery is free on orders above £250 across mainland UK. Additional charges may apply for certain areas. Contact us for delivery quotes if you’re outside mainland UK.

Delivery Timescales: Most orders are dispatched within 7-10 working days. Bespoke products or out-of-stock items may take longer. Contact us for specific requirements.

Refused or Missed Deliveries: If a delivery is refused or missed, additional charges may apply. Please rearrange delivery or contact us for assistance.

Note: We strive to deliver promptly, but factors beyond our control may affect delivery times.

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