Designation:E2778−14StandardSpecificationforCustomTiled/MortaredMasonryHeaters(Stoves)1ThisstandardisissuedunderthefixeddesignationE2778;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisspecificationcontainsspecificationsforthedimen-sioningofcustomtiled/mortaredmasonryheaters(stoves).Thecustomtiled/mortaredmasonryheaters(stoves)areindividu-allytechnicallycalculatedandconstructed.Thisinformationcanbeusedforlog(cordwood)wood-firedmasonryheatersthatburnonefuelloadperstorageperiodwithamaximumloadbetween10and40kgandastorageperiod(nominalheatingtime)between8and24hperEN15544.1.2Thisspecificationisvalidformasonryheatersequippedwithfireclayasinteriormaterialwithanapparentdensitybetween1750and2200kg/m³,adegreeofporosity18upto33%byvolume,andaheatconductivityfrom0.65upto0.90W⁄mK(temperaturerange20to400°C)perEN15544.1.3Thisspecificationisvalidformasonryheaterswithsidewisecombustionairsupplyofthecombustionchamber.1.4Thisspecificationisnotvalidformasonryheaterscombinedwithwaterheatexchangersforcentralheatingorotherheat-absorbingelementssuchasglassplatesgreaterthan1⁄6ofthecombustionchambersurface,openwatertanks,andsoforth.Itisalsonotvalidformasonryheaterscombinedwithheating/fireplaceelementsinaccordancewithEN13229.Furthermore,thisspecificationisnotvalidformass-producedprefabricatedorpartlyprefabricatedslowheatreleaseappli-ancesaccordingtoEN15250.1.5Thecalculationmethodofthisspecificationisusedtoestablishemissionsandenergyefficiencywhenburninglogwoodorwoodbriquettesaccordingtothemanufacturer’sorbuilder’smanual.1.6ClearancetoCombustibles—Whenamasonryheaterisconstructedaccordingtothisspecification,theclearancetocombustiblesshallbeinaccordancewithTRVB105orotherappropriatestandards.1.7Units—ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmea...
