genuine nunnauuni – known for the periclase in the fire chamber

Genuine NunnaUuni –known for the periclasein the fire chamber

GENUINE NUNNAUUNI –KNOWN FOR THE PERICLASE* IN THE FIRE CHAMBERThe periclase on the surface of the soapstone fire chamber has made the unique thermal properties ofpremium soapstone fireplaces possible and remains a defining feature of all NunnaUuni fireplaces today.The century-long knowledge, skills and expertise of the fireplace masters have been the foundation ofNunnaUuni Oy's success since 1982. We continue to foster and utilise this tradition of expertise for thebenefit of our customers today. Tens of thousands of satisfied NunnaUuni customers throughout Europe cantell You more about the meaning of this tradition from their own experience.NunnaUuni OyJuhani Lehikoinen wearing a periclase amulet around his neck andshowing some periclase scraped from the fire chamber with a spoonis proud for the success of the company.Juhani LehikoinenPre-testing is performed at our in-house test laboratory.The oriented and foliated talk layers must be towards the fire.Against cleavage.MORE THAN 100 YEARS OF FIREPLACE EXPERTISEThe guild of the master fireplace builders lived in Nunnanlahti,Finland, in the 1800s. Once a suitable stonedeposit had been located and quarried, the stone wassawn – perpendicular to the cleavage for the innerfireplace stones, and parallel to the cleavage for thesurface stones. Depending on their plane of cut, thestones were used to achieve different directions ofheat transfer in the finished soapstone fireplace. Nunnanlahtisoapstone fireplaces were famous for theirexcellent thermal properties, and the best of them forthe strong, brown, stable layer, which formed on thesurfaces of the fire chamber after heavy use. The fireplacesheated up quickly, served as excellent cookingovens, and kept the home continually warm througheven the harshest of winters.The fire chamber is, andhas always been, the mostvital part of the Nunnanlahtisoapstone fireplace. The experiencedfirst-generationfireplace masters knew this,and always selected the verybest fireproof soapstone forthe fire chamber. Their reputationas master firebuilder,both in their own village andin the neighbouring villages,depended on it. The durablefire chamber that lasted fordecades, had good bakingproperties and gave balanced,consistent heat, meant thatthe master could guaranteehis bread would be earnedalso in the future.”Nobody may believeit now, but a thrivingbusiness will, oneday, stand in thisplace.”Juhani Lehikoinen, the founderof NunnaUuni, is a thirdgenerationfireplace builder;his grandfather Pekka andfather Tahvo worked as fireplacestone sawyers in Nunnanlahti.Tahvo was convincedthat he had found aunique stone deposit ideal forfireplace building. In 1972, hetook his son Juhani to the site,showed him the quality of thesoapstone and predicted thata big factory would one daystand in that spot.Eight years later, Juhaniclaimed the deposit and beganinvesting his expertisein the future of heat-storingsoapstone fireplaces.”Science proves nowwhat the fireplacemasters alreadyknew more thana century ago”Juhani recognising the importanceof different soapstonetypes, utilised his expertisein metal machining technologyand embarked upon arigorous research programmeto determine the scientificbackground to the practicalknowledge of the fireplacemasters. A leading study intodifferent soapstone types andtheir thermal properties wasstarted in the 1990s and is stillongoing today.The research has proven whatthe fireplace masters knewlong ago. The best materialfor the fire chamber, the mostvital part of the fireplace, issoapstone consisting of acombination of schistose andfoliated, flaky talc formedunder intense geologic pressureand fine-grained magnesite.In the high temperatureconditions of the fire chamber,the surface of this soapstoneconverts into a hard talcpericlaselayer that conductsheat extremely well. The layeris recognisable by a characteristicbrownish colouration ofthe fire chamber surface. Afire chamber fully lined withthis soapstone stores a vastamount of heat quickly, andlasts for decades.The soapstone types presentin the Nunnanlahti depositand the preservation of thepractical expertise in buildingsoapstone fireplaceshave, supported by moderntesting and research methods,enabled the long tradition ofbuilding genuine soapstonefireplaces in Nunnanlahti tobe continued.The company holds the mining rights to a more than 70-hectare site.The deposit contains over 15 million m 3 of high-quality soapstone.The unique thermal properties of allNunna soapstone fireplaces aregenerated due to the periclase formed inThe surface of the fire chamber of the stove shown in the picturehas turned brown with use. The brown colour appears onthe fire chamber stones at the hottest parts of the fire chamber.This change takes place as the soapstone's magnesite and talc aresintered together in the extreme heat of the fire chamber. Theresulting surface withstands years of use and enables rapid storageof fire heat deep into the fire chamber structure.*Magnesium carbonate (MgCO3) present in the soapstone surface convertsto periclase (MgO) at temperatures exceeding 520 ºC. Periclase is sixtimes (Mohs 6) harder than talc (Mohs 1), and can withstand temperaturesof up to 1600 ºC. The melting point of pure periclase is said to be 2800 ºC.Father and son stone sawyers from Nunnanlahti working in the 1950s.2

THE TALC-PERICLASE* FIRE CHAMBER – ALL THE BENEFITS OFThe original master fireplace craftsmen of Nunnanlahtiin the 1800s noticed that the surface ofa certain type of soapstone would turn a distinctivebrown colour in the heat of the fire chamberi.a. into periclase. Fire chambers strengthened inthis way were highly durable and worked perfectlyfor decades. This colouration is known asthe periclase layer.Stores heat fast like NunnaUuni”In the NunnaUuni fireplace, the fire heat is absorbed ultrafastand efficiently into the fire chamber stones. There areno speed limits!”Long-lasting like NunnaUuni”As the old saying goes: a NunnaUuni fireplace will evenout-bake the wife. That's heat-storing capacity, if ever I sawit!”The periclase liesbeneath the grey ash layer.Durable like NunnaUuni”This fireproof soapstone is a real wonder stonematerial.When used efficiently and heated to high temperatures, thefire chamber just gets stronger and tougher.”No speed limit alongthe talc layer!The fireproof soapstone in NunnaUuni fire chambers is speciallyselected for its unique ability to rapidly store a largeamount of heat. The outer shell then circulates and balancesthis heat, giving a smooth and consistent heat release.Clean burning in NunnaUuni”The Golden Fire system supercharges the NunnaUuni fireplace.Even black combustion gases burn off in the firechamber. That, too, is down to the periclase.”With NunnaUuni the baking time is long,but will the cook be equally strong?A solid soapstone NunnaUuni fireplace certainly packs plentyof heat storage performance – the high specific weight(3000 kg/m 3 ) of the soapstone combined with its excellent thermalconductivity give it an outstanding heat storage capacity.Short burn, long heat”Wouldn't it be great, if your car could run 24 hours straight– and then some, on just one tank of fuel? That's what youget with a NunnaUuni fireplace – a single burn gives over24 hours of heat.”A two-hour burnfor over 24 hours of warmth– not bad!”You know, a black cat does notfeel comfortable in a NunnaUunifireplace.”A saying among master fireplace builders.Fire chamber of a baking oven after over 10 yearsof use. The tough, brownish periclase layer can berevealed by scraping away the grey ash layer,as shown here.When a NunnaUuni fireplace is used, a tough periclase layerforms on the surfaces of the fire chamber. The periclase isrecognisable as a brownish colouration. A NunnaUuni fireplacethus reaches its peak after years of use.Golden Fire– kind to the environment.The patented wood-burning method, Golden Fire, producesextremely high temperatures, which gasify the wood evenlyand efficiently burn gases released, minimising wood-burningemissions as a result.The inner section and the outer shell of the NunnaUuni fireplacework in unison. The majority of the heat producedis immediately stored in the solid fire chamber, and the remainingheat is stored in the smoke duct. The outer shellthen circulates and releases the heat into the room evenlyWhat doFireplace from the 1800sin Kosula FinlandNunna stove from the1980sEach of these fireplaces,regardless ofthe century or decadein which it was built,has a strong, periclasecoatedfire chambermade of the self-sameNunna stove with bakingoven from the 1990sFireplace in the officialresidence of the Presidentof the Republic of Finlandfrom 1993Golden Fire Serena stove from the 2000sThe fire chamber stones for NunnaUuni fireplaces are selectedby hand. The flaky talc layers schist in the stone, formed underextreme pressure, act as a highly efficient thermal conductorand supporting network. The magnesite content of the stoneis in the form of fine grains that are almost invisible to thenaked eye. In temperatures exceeding 520 ºC, these grains convertto form a tough layer of periclase surface.3

Oven-Herbert knows that heat categorieshelp to choose the right fireplaceNunnaUuni's fireplace range is designed to meet different heating requirements.Old buildings, for instance, require more heating energy thannew buildings, and more energy is required in winter than in summer.NunnaUuni fireplaces are divided into three heat categories according tothe amount of heat stored in a single heating session. The categorisationmakes it easier to choose the right fireplace for your home.maximum amount of wood in 24 hours.Herbert: ”For buildings dating from the 2000s, a heat category 1fireplace is generally suitable as the sole heat source, even for spacesof over 50 m 2 , at an outdoor temperature of around zero celcius.Electric radiators can be used to provide additional heat in colderweather. In older buildings from the 1980s, these fireplaces are suitableas a primary heat source for spaces of about 35 m 2 , if a complementaryheat source, such as electric radiators, is used in sub-zerotemperatures.”Fireplaces in heat category 1 produce < 40 kWh thermal energy with theFireplaces in heat category 2 produce 40–60 kWh thermalenergy with the maximum amount of wood in 24 hours.OVEN-HERBERT'STIPS FOR CHOOSING A FIREPLACE• purpose of the fireplace• location of the fireplace• heat demand of the room (e.g. in very low temperature locations,big enough fireplace to deliver sufficient heat)• style of the home• structural and technical factors (flue, foundation, replacementair)• turnkey delivery or just the fireplace including installation• contact your NunnaUuni expert – we're always more thanhappy to help!Herbert: ”In buildings dating from the 2000s, a heat category 2 fireplaceis sufficient for heating a space of about 60 m 2 at an outdoortemperature of as low as -10 ºC. In older buildings, a fireplace in thiscategory is suitable as a primary heat source for a space of just over60 m 2 if a complementary heat source, such as electric radiators, isused in sub-zero temperatures.”The fireplaces in heat category 3 produce > 60 kWh thermalenergy with the maximum amount of wood in 24 hours.Herbert: ”The fireplaces in heat category 3 are high-output heatingunits and should not therefore be located in too small a space. Inbuildings dating from the 2000s, the space to be heated can be upto about 80 m 2 even at outdoor temperatures of as low as -10 ºC.In older buildings, a heat category 3 fireplace is sufficient for heatinga space of around 50 m 2 , with no complementary heat sourcerequired, even at -10 ºC.”WHAT ONE HAPPYCUSTOMER TOLD OV-“You'll definitely notice a bigdifference in your electricitybill – we did! In the first yearof using the fireplace, the meterreading for our otherwiseelectrically heated house haddropped so dramatically thatthe electricity man was convincedthat our meter was brokenwhen he came to read themeter. It later turned out that itwas because of our NunnaUunifireplace.SERENA 4H 1855 mmThermal energy 66–76 kWhOur wood consumption hasn'tbeen too high either, justaround ten cubic metres keepsus hea-ted for the whole win-WILMA 6H 1575 mmThermal energy 48–55 kWhThe layers exceed the bottom plinth by 20 mmSABRINA 1H 1295 mmThermal energy 32–37 kWhThe layers exceed the bottom plinth by 20 mm4

Items and furnishings shown courtesy of Asko and H&B Home Ltd.OVEN-HERBERT PON-DERS THE MIRACLEOF RADIATED HEATSettled by the fire, Herbert, allowinghis eyelids to droop forjust a moment or two, falls intoa summer day-dream. Letting thesun's imaginary rays gently caresshis face, Herbert can't helpbut smile. Hmmm. Perfect bliss...LEILA 1H 1505 mmThermal energy 48–55 kWhThe heat stored in a Nunna-Uuni fireplace is conveyed byradiation. The heat rays fromthe fireplace heat the surfaces,which they come into contactwith. The floor, for instance,warms and feels pleasant underfoot. The heat radiating from afireplace has a similar positive effecton people as the heat fromthe sun. Still, those may be thefacts, but it's all the same to Herbert,lying there dozing and enjoyinghis own “sun”.VANESSA 3 PLH 1575 mmThermal energy 48–55 kWhThe layers exceed the bottom plinth by 20 mmLISA 2H 1785 mmThermal energy 48–55 kWhPIA 1H 1225 mmThermal energy 32–37 kWhCAROLINA 2H 1505 mmThermal energy 48–55 kWhThe layers exceed the bottom plinth by 20 mm5

Cooking andheating combined!LYDIA SOLO 3H 1715 mmThermal energy 58–66 kWhWith the Solo fireplaces,separate heating of thebaking oven is not required– the oven heats as the fireplaceis heated. This alwayscleanbaking oven is excellentfor oven dishes andsmall baking.With the Duo fireplaces, thebaking oven is separatelywood fuelled. This gives thebaking oven plenty of heatfor more demanding baking.A traditional baking ovenis both an excellent heatsource and a baker's dream,providing the long-lastingbaking heat you need forlonger baking sessions.OVEN-HERBERT'S TIP”Even a normal fireplace canbe great for cooking, especiallyslow-cooking dishessuch as stews and casseroles.Just put the ingredientsin an oven dish andpop the dish into the oven.Give it a try!”MARKETTA SOLO/DUO 1H 1715 mmSolo 1 thermal energy 77–87 kWhDuo 1 thermal energy 54–87 kWhMARI 1H 1435 mmThermal energy 54 kWhVANESSA SOLO 1H 1715 mmThermal energy 64–74 kWhThe layers exceed the bottom plinth by 20 mmMEERI 3H 1715 mmThermal energy 68 kWh6

CAREFREE CHOICEA focal point of interior designThere are a number of things to consider when making the right choice of fireplacefor your home. To ensure a smooth and easy selection process, contact yourNunnaUuni dealer for help in planning your fireplace. The same expert will beyour contact person during all stages of the process, and will also be available forassistance after you have acquired your fireplace.What do you want your fireplace to do for you?When purchasing a fireplace, first establish what your main use for it will be. Our rangeincludes stoves, stoves with baking space, lightweight Functio fireplaces, baking ovens,baking ovens with cookers and cookers – different fireplaces for different purposes:heating, cooking and always for creating atmosphere. When browsing our models in abrochure, keep in mind that the true charm and atmosphere of a NunnaUuni fireplace reallyonly fully comes alive after the heating.Position the fireplace as centrally as possibleThe heat from a NunnaUuni fireplace is radiated heat, resembling the heat of the sun.Since the heat transfers by radiation, the entire room from floor to ceiling will be pleasantlywarmed. Since walls prevent heat transfer, the fireplace should be placed as openly andcentrally as possible in the room.The location of the fireplace in the room can be accommodated with different flue connection options, fluelinings and decorative accessories. Your local professional NunnaUuni dealer will be happy to help you findthe solution that best suits your needs.Select a fireplace according to the heat demandThe heat demand of a building is affected by, for example, the insulation, ventilation, airtightness,internal heat production, and surface area of cold external walls and windows.A good, warm atmosphere is ensured by selecting a fireplace that best suits the space interms of its heat category. The diagrams presented here are designed to help in finding thefireplace best suited to your needs.Residential building built in the 1980sAlthough all NunnaUuni fireplaceswill create a charming,warm atmosphere, models fittedwith large fireplace doors providethe best showcase for thefire itself.20 m 2 30 m 2 40 m 2 50 m 2 60 m 2 70 m 2 80 m 2 90 m 2 100 m 2 20 kWh10 ºC0 ºC-10 ºC40 kWh60 kWh80 kWh100 kWhThe average U value of the room is 0.60 W/m²KA well-insulated residential building built in the 21st century10 ºC20 kWh0 ºC-10 ºC40 kWhYour fireplace can also be usedfor cooking. Models speciallydesigned for cooking includestoves with baking space, bakingovens, cookers, and bakingovens with cooker.20 m 2 30 m 2 40 m 2 50 m 2 60 m 2 70 m 2 80 m 2 90 m 2 100 m 2 100 kWh60 kWh80 kWhThe average U value of the room is 0.40 W/m²KThe fireplaces in heat category 1 have a daily thermal energy of 40 kWh.The fireplaces in heat category 2 have a daily thermal energy of 40 – 60 kWh.The fireplaces in heat category 3 have a daily thermal energy of over 60 kWh.The room height of the example houses is 2.5 m, the window area is 15 % of the exterior wall area, and theinside temperature is 21 ºC. Ventilation is calculated to be 0.5 times the room volume per hour, and the heatrecovery efficiency is 50 %. It is presumed that the heat from the fireplace can move without obstruction tothe whole area to be heated.A fireplace is an excellent heatsource which, if correctly dimensioned,can even serve as the primaryheat source for your home.Of course, many use a fireplaceas a complementary heat source.The diagrams are a guide only; the actual heating needs always depend on the building itself. Insulation requirementsvary from country to country.7

DELICIOUS SALMON LASAGNA INNUNNAUUNI for four500 g salmon fillet12 sheets of spinach lasagna1 onion4 dl mushrooms150 g frozen spinach2 tbsp. oil1 tsp. salt½ tsp. black pepperSauce:30 g butter or margarine1/2 dl wheat flour7 dl milk100 g processed cheese spicedwith green pepper1 ½ tsp. salt1. Mash the onion and the mushrooms. Melt the spinach – forexample, in the oven or the microwave.2. Heat up a saucepan, then pour some oil in the pan. Sauté theonions, mushrooms and spinach. Add salt and pepper.COOKING IS IN!Cooking is all the rage. Traditional cooking in a woodheatedoven, too, is gaining in popularity, althoughthe opportunity to have a go first-hand remains, formany, a rare treat.All fireplaces are individual, and the best way to get toknow your oven is to roll up your sleeves and have a fewgos at making some familiar dishes. As an alternative to thetraditional separate wood-fired baking oven, the low maintenanceSolo stove model with baking space is well worthconsidering. The always-clean baking oven is self-heated bythe fireplace.3. Prepare the sauce: Melt the butter in a saucepan, then add flour.Stir-fry the flour for a few minutes, but do not brown. Add milk insmall portions while whipping heavily. Let boil for approximately10 minutes. Add the cheese in small pieces, and spice to taste.4. Place the fish, mushrooms/spinach mixture, lasagna sheets, andsauce in the buttered casserole dish in layers. The top layer shouldbe a sauce layer.5. Bake in the baking oven at 200 ºC for 30–35 minutes.enjoy in good company!Cooking in a wood-heated oven is an ideal, convenient option formodern-day living: when leaving for work, you can pop a casserole inthe oven, which your fireplace has already heated the evening before,and be greeted with the smell of dinner ready in the oven, when youarrive home from work. Easy, isn't it – and delicious!TECHNICAL TABLEWEIGHT OFBOTTOM BAKING SPACELENGTH OFFIREWOODLENGTH OFFIREWOODMAXAMOUNT OF THERMALNOMINALHEAT OUT-WEIGHT PLINTH Width Depth FIREPLACE OVEN WOOD ENERGY* PUT / TIMEPRODUCT(kg)(kg)(mm) (mm)(cm)(cm)(kg) (kWh) (kW / h)CAROLINA 2 1635 125 33 15 48–55 2,0 / 7,1LEILA 1 1400 95 33 15 48–55 2,3 / 7,3LISA 2 1670 100 33 15 48–55 1,8 / 6,1LYDIA SOLO 3 1670 100 400 360 33 18 58–66 2,7 / 7,3MARI 1 2220 160 420 693/483 33 (50) 20/15 1 54MARKETTA SOLO 1 2420 155 382 580 33 24 77–87 2,7 / 8,9MARKETTA DUO 1 2495 155 382 610 33 33 24 54–87 2,7 / 8,9MEERI 3 3460 215 420/600 850 50 25/20 1 68PIA 1 1000 80 25 10 32–37 1,6 / 6,8SABRINA 1 1120 95 25 10 32–37 1,4 / 7,7SERENA 4 2115 140 33 20 66–76 2,3 / 11,9VANESSA 3 PL 1830 135 33 15 48–55 2,3 / 7,2VANESSA SOLO 1 1930 135 382 420 33 20 64–74 2,3 / 9,8WILMA 6 1740 115 33 15 48–55 1,9 / 7,9PL top connection* thermal energy varies depending on the dryness of wood (percentage of moisture)1heated from cold / heated every dayThe bottom plith increases product height by 70 mm. In the layout drawings, the bottomplinth dimensions are in brackets ( ), and the fireplace overall dimensions are markedwith asterisks. The bottom plinth and front plates are by separate order. For the modelspresented in this brochure, the thickness of the outer shell stone modules is 70 mm +35 mm, 105 mm in total.□Yes, please! I would like Nunna-Please contact me:Name:AttachstamphereAddress:Retailer contact informationThe nominal heat output is the fireplace’s heat output according to the SAA 142/222test. This indicates the duration of the steady heat release of the fireplace in hours (h),and the heat release output (kW) during the period in question. Even after this, the heatrelease of the NunnaUuni fireplaces is significant, as their warmth can be enjoyed even24 to 48 hours after the heating.NunnaUuni Oy, Joensuuntie 1344 C, FI-83940 Nunnanlahti, Finland, Tel. +358 207 508 207,fax +358 207 508 277. NunnaUuni Oy reserves the right to make alterations. There may be country-specificrestrictions in delivery of certain products.Postal code:City/Country:Telephone number:E-mail address:□□I would like to order the NunnaUuni fireplacebrochures.My contact information may be used formarketing NunnaUuni products.8/2009-2