Eco-friendly Finnish heat-storing fireplaces

NunnaUuni from Finland takes care of your house’s atmosphere and warmth alike, without environmental stress. Burning wood, a renewable natural resource, in a NunnaUuni fireplace is clean and efficient, with no wasted wood.

NunnaUuni fireplaces are manufactured using soapstone, a genuine natural material, so it is an eco-friendly, nontoxic, long-term choice to increase comfort in your home by bringing warmth and atmosphere.

NunnaUuni is an environmentally sustainable choice. Enjoy the atmosphere of the fire, clean – every day if you want.

Blue sky
NunnaUuni is an environmentally sustainable choice. Enjoy the atmosphere of the fire, clean – every day if you want.

A NunnaUuni heat-storing fireplace helps conserve the environment

Using firewood for heat does not put needless stress on the environment when you choose a NunnaUuni fireplace from Finland.

What truly makes NunnaUuni unique in the fireplace market is the domestically sourced material, Mammutti soapstone, and the Golden Fire gasification burning method, which work together to generate more heat from less wood for a longer time.

Every NunnaUuni fireplace is under the 2022 EcoDesign emissions limit in the heat-storing fireplace test, which is the strictest testing method for fireplaces. The smoke gases are measured for the entire burning period, from igniting the wood onwards, which is not the case for stoves or convection fireplaces.

NunnaUuni is an efficient heater for your house

The heating benefit (kWh) per heating period for different hearths can be identified with the declaration of performance for fireplaces, which also allows comparison of different manufacturers’ fireplaces. The more energy (in kWh) that the structure of your fireplace can store, and how long and how steadily it releases heat, the more pleasing the heat you get.

Reduce the environmental load of your home or cottage heating significantly

Climate change is causing the Arctic to warm at more than twice the average Earth rate. Approximately 20–25 percent of warming in the north is caused by black coal, which is fine-grained soot dust. The microparticles in black coal warm the atmosphere and absorb sunlight upon landing on ice and snow, causing them to melt faster.

With NunnaUuni, you can reduce the environmental load of your home or cottage heating significantly.

When no heat or unburnt fuel (wood) is released with the combustion gases, NunnaUuni achieves the same heat benefit at less than half the emissions.

The clean Golden Fire gasification burning method produces very minor emissions. This both improves the energy-efficiency of the fireplace and minimises the harmful PAH compounds and soot particles. NunnaUuni received an award for innovation in 2019. The contest searched for solutions to reduce black coal emissions.

The unique Finnish material for fireplaces, exclusive to NunnaUuni

Research on the thermal properties of Mammutti soapstone, mined in Nunnanlahti in Juuka, began in the early 1990s. The studies provided proof that the properties of Mammutti soapstone are unique for fireplace use compared to other types of soapstone. Mammutti soapstone is exclusive to NunnaUuni.

The life cycle of NunnaUuni fireplaces is also considerably long, with our fireplaces lasting even for decades.

In fact, the very first industrially manufactured NunnaUuni fireplace remains in use in Simpele, Finland!

NunnaUuni fireplaces and baking ovens are manufactured right next to the material reserve in Nunnanlahti. This means the materials for fireplaces don’t require lengthy transport, which also reduces NunnaUuni’s environmental footprint.

NunnaUuni in the modern living room
With NunnaUuni, you can reduce the environmental load of your home or cottage heating significantly.

The patented Golden Fire burns wood cleanly

Data backed by research and a guarantee of a unique, fireproof soapstone type offered us a chance to begin developing combustion technology to a whole new level. At the turn of the millennium, a clean gasification burning method was born – Golden Fire.

Clean burning conserves not only the environment, but firewood as well. Golden Fire’s controlled gasification of wood ensures nearly zero-emission burning. White mist from the chimney is a signal of a clean burning fireplace.

Unclean burning, on the other hand, can be identified by dark and odorous smoke. This unpleasant and harmful smoke is unburnt firewood. ​

Conserve the environment, choose NunnaUuni

You will reduce the environmental load and improve energy efficiency for decades.

NunnaUuni – Comfort of warmth for every home

A heat-storing fireplace as a home or cottage heating solution

A heat-storing fireplace as a home or cottage heating solution

A NunnaUuni fireplace allows for easy use of renewable wood for heating your home. A fireplace made exclusively with soapstone generates soft heat for over a day with just one short heating period.

For a heating solution

Enjoy the warmth and cooking capabilities of the baking oven

Enjoy the warmth and cooking capabilities of the baking oven

Make your daily life easier by heating and cooking delicious food at the same time. NunnaUuni offers a delight for all senses: the scent of cooked food or baked goods, the warmth of fire, and the dance of flames.

For cooking

Providing warmth and atmosphere in interior design

Providing warmth and atmosphere in interior design

A hearth, fireplace, or baking oven catches the eye, creates atmosphere, provides warmth, and serves as the centrepiece of the home. Explore NunnaUuni as an interior design solution!

For interior design

Locate your closest dealer and installation service

Do you want to explore the NunnaUuni range close up? Do you need help with the installation? Here you can find the closest dealer and company offering installation services.

Locate your closest dealer and installation service

Questions about the products?

Do you have questions about our products? Our experts are happy to answer all questions.

Contact us