Stove Story +

Introducing the Popty Cube (Ciwb), one of our new series of wood fired cooker stoves based on the 5 kW Stock Cube firebox, with a top oven box. This is a gloriously chilled Penguin.

It is comfortable and at ease with itself sitting in the middle of our penguin family tree.  It sits between it’s more compact Hungry Penguin cousins and the bigger 78 members of the family. It will be cooking your wood fired melty pizzas, crusty bread, bakes and stews while warming your heart and your home. If you have never thought about wood fired cooking, consider that the stove’s on anyway and you’ve already paid for the fuel, so in a way….dinner’s for free.

We had to have a Popty series, welsh for oven and “ciwb” as it sounds-welsh for “cube”. So the Popty Ciwb or the Popty Cube. Who wouldn’t want to pop something in a popty? It is an old word possibly originating from the old shared bakehouses. “Pobi”, bake and “Ty”, house. We love the association with shared baking and perhaps stretching a hand back through the history to other generations who also cooked on solid fuel.

The Prices +

The Popty Cube (Ciwb)£2,600.00
Other Popty Cube (Ciwb) Series Stoves:
The Popty Lofty£3,160.00
The Popty Stout£2,885.00
Popty Plinth in Penguin Black£410.00
Popty Plinth in other colours£420.00
Penguin Black (standard)FREE
Seal Grey/Storm Blue/Charred Red/Evergreen£125.00
All Prices shown are RRP and include VAT
Factory fitted SMOKE CONTROL kit is included




Whats More +

Logs sit directly on the vermiculite bricks on the base of the stove, there is no need for a grate. It has a generous fire box, sized for logs 300mm long and an even more generous piece of glass, offering you a wonderful clear view of the roaring fire.

It is beautifully simple to control, there is one air control knob. This is both the air boost, when fully extended and finer control when eased inwards. Wood burns better on a bed of ash, but when you do want to empty it, you just scoop it out from the base of the firebox. We have a tool called a "sgŵp" (pronounced scoop), available in our online shop, designed specifically for stoves without grates, like the Popty series.

The efficiency is 82.4%. It is an Eco design stove, suitable for use in smoke control zones.

There is a convection option available for this stove, called the Popty Stout and a model with both convector panels and and integral plinth, called the Popty Lofty.

Penguin Facts +


All our cooker models have an oven box and top plate (oven top surface). The oven temperature can reach up to 240°C, but it will tick over comfortably between 140-180°C.  The temperature is controlled by both the amount of fuel you use and the air introduced through the air controls. You can fit a small saucepan and kettle on the top plate.

The oven is 200mm high, and comes with a single shelf. There are two shelf brackets at either side of the oven, giving you a higher or lower shelf position or you can place the shelf on the oven bottom. Additional shelves are available if required.

There is a vent hole at the rear of the oven box, this allows cooking smells to escape up the flue. If you want any cooking inspiration see our recipe page.


If you regularly use the top surface of the stove, there is an optional stainless steel top plate available, which sits on top of the stove and protects the surface. We offer two types of these. The top flue version has a “U” shaped cut out to sit around the flue. The rear flue version has no cut out. (If you want the rear flue version let us know at point of order, so we can remove the stove collar for you. Also ask your stockist for a “rear flue ready stove”). There is also a steel corner top plate option, called a “triongl”, a perfect size for a single kettle or pan to sit on, available in our online shop.


In order to be an Ecodesign stove, a stove must be independently verified to meet stringent emission requirements. Particulates or PMs are the most commonly recognised of these measures. The maximum limit for these is 40 mg/m3. This stove achieves 35 mg/m³. All other measures are all listed in our technical details table below. Click here for further Ecodesign info

Colour Options +

See stove colours for more detail.

Welcome to the Penguin Family Gallery +

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The Tech Details +

Nominal Output5kW
The Popty Cube (Ciwb)
Width 475mmDepth 405mmHeight 916mm
Internal oven dimensions
Width 350mmDepth 215mmHeight 200mm
(excluding shelf and 50mm slope at top rear of oven for flueway)
Optional extra oven shelf available (one as standard)Yes
Wood onlyYes
Colours AvailableYes
Optional Direct Air KitYes (Retrofittable)
Approved for use in smoke control zonesYes
Log length x diameterlength 300mmdiam 100mm
Flue collar diameter127mm (ID)
Flue size requiredmin 125mm
Ecodesign measures
Particulates @ 13% O235mg/m³
CO content @13% O20.11%
NOx mg/m³108mg/m³
CxHy mg /m³77mg/m³
Top Exitas standard
Rear Exitswap flue collar & blanking
option for rear flue can be factory fitted if selected at point of order
Distance to combustibles *+
side 400mmrear 300mmabove 500mm
Distance to combustibles with insulated flue fitted to stove top *
side 400mmrear 100mmabove 500mm
Distance to non combustibles
side 100mmrear 50mmabove 150mm
Hearth type12mm
* these are the minimum distances, be aware that there are other considerations eg. access for sweeping, height of kettle etc
+ if single wall ie. non insulated flue is used then the distance to combustibles at the rear is equal to 3 x flue diameter

The Plans +

Stove Manual PDF Download

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