A range of affordable and economical cast iron fireplaces to suit all sizes of living space and all budgets. Find the perfect freestanding wood burning fireplace for your house size and style with our wide selection of energy-efficient cast iron and steel closed combustion heating units.

All units in the Invincible range come with a 10 year limited guarantee and meet EU and SABS requirements

17 models ranging from 5.5 kW to 24 kW




Power Output 5.5 kw

Power Output 6 kw

Power Output 7 kw




Power Output 8 kw

Power Output 9 kw

Power Output 11 kw



Darling – Double Sided

Power Output 11.5 kw

Power Output 12 kw

Power Output  16 kw




Power Output 14 kw

Power Output 14 kw

Power Output 14 kw



Arniston – Double Sided

Power Output 16 kw

Power Output 18 kw

Power Output 20 kw


Sutherland – Built in

Power Output 24 kw

Power Output 12 kw

Our cast iron fireplaces are available in an exciting and wide range of both wood and multi fuel models.

(Multi fuel can be either coal, wood or anthracite or a combination of any of these fuels).

There is nothing quite the same as heating your home with a slow combustion cast iron free standing stove. It provides three times more heat than a conventional open fire place while using a third less fuel. Not only does the ritual of loading a stove give a greater sense of achievement and satisfaction; it provides warmth that no other energy source can equal.

Although Invincible units are priced considerably lower than similar European and Scandinavian models, they are not in any way inferior as far as performance and durability is concerned. Invincible units are solidly made cast iron stoves and  do in fact carry the same guarantee of 10 years on the main body of the fireplace as more expensive models do.


Fireplace capacity is expressed in kilowatt heat output (kw)

Under normal South African winter conditions 1 kw has the capacity to heat up a volume of approximately 20 cubic meters .

This value will decrease with more extreme cold conditions: ie. below freezing level.

20 cu meters is equal to approximately 8 square meters for a standard room.

(square meters is calculated by dividing the cubic meter area by the height of the ceiling)

The calculation is as follows:

1 kw = 20 cu meters divide by 2,5 meters = 8 sq meters for a standard room

(Alternatively, to calculate the volume of the room in cubic meters, multiply the square meter area by the height of the ceiling)

The additional benefits are numerous: a stove will breathe allowing the heat to seep into the very fabric of your home; the constant source of heat and the continual air changes reduce condensation. By burning renewable fuel such as wood, you are participating in a natural cycle that benefits the environment. You decide how much or how little heat you require by adjusting the rate of burning. With so many styles and sizes now available there is one to suit the requirements of every home.

One can view the purchase of a slow combustion fireplaces as a life long investment.These Fireplaces can be removed and installed in your new home when you move.


  • Slow Combustion Fireplaces use 1/3 (one third) less fuel than a conventional open fireplace, whilst providing 3 times more heat.
  • The closed door, air control system in all models allows a variation and adjustment of temperature for slow and high rates of burning as is required.
  • The closed door, air control system allows heat to penetrate into all corners of the living space without the smell of fuels penetrating into fabrics, clothing and furniture.
  • The air control systems allows you to load the stove at night when you retire, adjust it to slow burning, clear out the ash in the morning and reload for further continuous burning the next day.