Woodfire Passiv Boiler Stove

Sale price£3,895.00


The Woodfire Passiv represents the latest generation of highly efficient and cleanburning boiler stoves. An astonishing 86% efficiency, to give you the most heat from your wood, combines with clean lined good looks and a large window to fill your room with firelight.

This stove has been designed to give the majority of its heat to creating hot water, with just a small amount given to the room, which makes it perfect for low energy, well insulated houses. Passiv style dwellings require very little heating but still have a need for domestic hot water, and sometimes a heating top up in cold weather, and the Woodfire Passiv is made for that situation.

With the ever increasing cost of fuel, there has never been a better time to invest in a boiler stove. With the style and elegance of a wood burning stove which also connects to your heating and hot water systems, the Woodfire range is the perfect
combination of style and convenience whilst at the same time saving you money. 

Unlike most boiler stoves, the Passiv has been designed solely for burning wood. Traditional boiler stoves put the boiler around the firebox and collect the heat that way. This works OK for coal burning but isn’t efficient for wood. Most of the heat from wood is generated just above the fire, where the gases are burning, and that is why the Passiv has tubular heat exchangers running across the top of the firebox. That also allows the firebox to incorporate vermiculite firebricks, resulting in a hotter, cleaner and more controllable burn.

With an insulated firebox, primary secondary and tertiary air control and an adjustable flue damper, this is a stove built to be worked hard, and be fully controllable, in any situation.

For best performance we recommend including the LK 810 ThermoMat 2.0G Load Unit. During normal operation a load unit maintains the return temperature to the stove (which is great for efficiency) and ensures that that temperature of the flow is always above 60C. The prevents condensation buildup on the stove, keeps the firebox at a higher temperature to promote flue draught, and if on a thermal store promotes stratification. A load unit is normally located near to the stove, but you could move it a little further away so it is not in the installation chamber. This can be added as an accessory below.

Technical Specifications

  • Height - 813MM
  • Width - 700MM
  • Depth - 486MM
  • Weight - 195KG
  • Flue Diameter - 150MM
  • Min Heat Output - 3KW
  • Nominal Heat Output - 10KW
  • Max Heat Output - 12KW
  • Efficiency - 86%
  • EcoDesign Ready - YES
  • Airwash - YES
  • Warranty - 3
  • Nominal Output to Water - 7KW
  • Nominal Output to Room - 3KW
  • Back to Stove to Centre of Flue - 185MM
  • Flue Outlet - TOP
  • Direct Air Supply - YES
  • Suitable for Pressurised Systems - YES
  • Can Have 12mm Hearth - YES


Delivery to Mainland UK is Free!

Once your order has been processed and confirmed for delivery you will receive a notification via email. Depending on the delivery method you may receive a tracking number where you can track the journey of your order, or you will receive confirmation of when the order is ready to be despatched and that the driver will contact you prior to delivery on the day.


Some of our products will be delivered direct from our suppliers and we use a number of couriers depending on the product.


As standard order will be delivered within 3-5 days. 


Some products may have a slightly longer lead time, for example where colour options are selected and they are painted to order.

In this case you will be contacted with details of delivery time.


Deliveries of large items are made on large lorries or 7.5 tonne lorries with a tail lift and a hydraulic pallet truck to bring the item as close to your house as possible.

Drivers will always be as helpful as possible but will not be able to unpack or lift the item into your house or into position.

If you have any special instructions or restrictions around or when accessing your property please let us know when placing your order and we will make sure the drivers are aware.

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