DAEYEOL BOILER, established in 1970, is a specialized industrial boiler manufacturer, developing and producing various high-efficiency and eco-friendly boilers, including condensing, hot water, water tube, and once-through types. The company is a leading player in the domestic boiler industry, focusing on continuous technological innovation and new product R&D for energy saving and environmental protection.DAEYEOLBOILER,establishedin1970,isaspecializedindustrialboilermanufacturer,developingandproducingvarioushigh-efficiencyandeco-friendlyboilers,includingcondensing,hotwater,watertube,andonce-throughtypes.Thecompanyisaleadingplayerinthedomesticboilerindustry,focusingoncontinuoustechnologicalinnovationandnewproductR&Dforenergysavingandenvironmentalprotection.
Key Products/TechnologiesKeyProducts/Technologies
Fire Tube-Smoke Tube Boilers: A flagship product with an 80% market share in the domestic market, featuring precise control through Siemens LMV5 and CLIMATIX Controllers. This product line includes ultra-low NOx high-efficiency certified models equipped with a non-powered exhaust gas recirculation system and low NOx burners.FireTube-SmokeTubeBoilers:Aflagshipproductwithan80%marketshareinthedomesticmarket,featuringprecisecontrolthroughSiemensLMV5andCLIMATIXControllers.Thisproductlineincludesultra-lowNOxhigh-efficiencycertifiedmodelsequippedwithanon-poweredexhaustgasrecirculationsystemandlowNOxburners.
Condensing Boiler Series: The Double Effect Condensing Boiler (DMXD-Series) incorporates patented technology for high-efficiency operation by separating economizers for feedwater and hot water. Other models include the Eco-Green Condensing Boiler (DMXN-Series), Inverter Condensing Boiler (DMFI-Series), and Twin Furnace Condensing Boiler (DTFI-Series).CondensingBoilerSeries:TheDoubleEffectCondensingBoiler(DMXD-Series)incorporatespatentedtechnologyforhigh-efficiencyoperationbyseparatingeconomizersforfeedwaterandhotwater.OthermodelsincludetheEco-GreenCondensingBoiler(DMXN-Series),InverterCondensingBoiler(DMFI-Series),andTwinFurnaceCondensingBoiler(DTFI-Series).
Once-Through Boilers and Special Boilers: High-performance products such as Premixed High-Efficiency Ultra Low NOx Once-Through Boilers (DOS, DOI) and Low NOx High-Efficiency Condensing Once-Through Boilers (DRH, DRX, DOL). The company also produces specialized boilers like Fire Tube and Water Tube Waste Heat Boilers (DWHB-Series, DWHB-FT-Series), Heat Medium Boilers (HC), and Water Tube Boilers (DP).Once-ThroughBoilersandSpecialBoilers:High-performanceproductssuchasPremixedHigh-EfficiencyUltraLowNOxOnce-ThroughBoilers(DOS,DOI)andLowNOxHigh-EfficiencyCondensingOnce-ThroughBoilers(DRH,DRX,DOL).ThecompanyalsoproducesspecializedboilerslikeFireTubeandWaterTubeWasteHeatBoilers(DWHB-Series,DWHB-FT-Series),HeatMediumBoilers(HC),andWaterTubeBoilers(DP).
MYDENS Hot Water Boiler Series: A patented product developed by Italy's Cosmogas, this high-efficiency IT condensing hot water boiler is designed for heating and domestic hot water using LNG/LPG fuels. It has obtained domestic high-efficiency equipment and safety certifications, offering a compact design and modular capacity adjustment through parallel connection.MYDENSHotWaterBoilerSeries:ApatentedproductdevelopedbyItaly'sCosmogas,thishigh-efficiencyITcondensinghotwaterboilerisdesignedforheatinganddomestichotwaterusingLNG/LPGfuels.Ithasobtaineddomestichigh-efficiencyequipmentandsafetycertifications,offeringacompactdesignandmodularcapacityadjustmentthroughparallelconnection.
Eco-friendly and High-Efficiency Technologies: Core technologies include condensing technology, which maximizes energy efficiency by recovering latent heat from exhaust gases, and low NOx technology, which minimizes nitrogen oxide emissions for environmental protection. The application of inverter systems achieves ultra-low power consumption, super-high efficiency, and low-noise operation.Eco-friendlyandHigh-EfficiencyTechnologies:Coretechnologiesincludecondensingtechnology,whichmaximizesenergyefficiencybyrecoveringlatentheatfromexhaustgases,andlowNOxtechnology,whichminimizesnitrogenoxideemissionsforenvironmentalprotection.Theapplicationofinvertersystemsachievesultra-lowpowerconsumption,super-highefficiency,andlow-noiseoperation.
Core AdvantagesCoreAdvantages
Over Half a Century of Experience and Accumulated Technology: With over 50 years of specialized expertise in industrial boilers since its establishment in 1970, the company possesses top-tier domestic technology. This foundation enables the development and production of differentiated boilers with high efficiency, quality, and performance.OverHalfaCenturyofExperienceandAccumulatedTechnology:Withover50yearsofspecializedexpertiseinindustrialboilerssinceitsestablishmentin1970,thecompanypossessestop-tierdomestictechnology.Thisfoundationenablesthedevelopmentandproductionofdifferentiatedboilerswithhighefficiency,quality,andperformance.
Leadership in Eco-friendly and High-Efficiency Products: Continuous investment in developing condensing and low NOx boiler technologies for energy saving and environmental protection. The company has secured leadership in eco-friendly technology through the domestic development of inverter condensing boilers and obtaining green technology certifications.LeadershipinEco-friendlyandHigh-EfficiencyProducts:ContinuousinvestmentindevelopingcondensingandlowNOxboilertechnologiesforenergysavingandenvironmentalprotection.Thecompanyhassecuredleadershipineco-friendlytechnologythroughthedomesticdevelopmentofinvertercondensingboilersandobtaininggreentechnologycertifications.
Dominant Domestic Market Position and Technological Superiority: Achieving the top sales position and an 80% market share in fire tube-smoke tube boilers in Korea. The company demonstrates technological superiority by holding the highest number of high-efficiency energy equipment certifications (76 cases) among industrial/building gas boiler manufacturers.DominantDomesticMarketPositionandTechnologicalSuperiority:Achievingthetopsalespositionandan80%marketshareinfiretube-smoketubeboilersinKorea.Thecompanydemonstratestechnologicalsuperioritybyholdingthehighestnumberofhigh-efficiencyenergyequipmentcertifications(76cases)amongindustrial/buildinggasboilermanufacturers.
Global Production and Service Network: Establishment of a local factory (DY BOILER VINA) in Ho Chi Minh, Vietnam, in 2019, securing a production base in Southeast Asia. Operation of branches in Russia and Hungary enhances service and after-sales support capabilities in Europe and the CIS region.GlobalProductionandServiceNetwork:Establishmentofalocalfactory(DYBOILERVINA)inHoChiMinh,Vietnam,in2019,securingaproductionbaseinSoutheastAsia.OperationofbranchesinRussiaandHungaryenhancesserviceandafter-salessupportcapabilitiesinEuropeandtheCISregion.
Comprehensive Customer Support System: Provision of total solutions, including 24/7 A/S reception and processing through its subsidiary, Daeyeol BnS, which operates 17 direct branches nationwide. Services encompass boiler water quality management, chemical treatment, annual maintenance, and regular safety inspections.ComprehensiveCustomerSupportSystem:Provisionoftotalsolutions,including24/7A/Sreceptionandprocessingthroughitssubsidiary,DaeyeolBnS,whichoperates17directbranchesnationwide.Servicesencompassboilerwaterqualitymanagement,chemicaltreatment,annualmaintenance,andregularsafetyinspections.
Continuous Investment in Research and Development: Focus on new product launches and technological advancements through the establishment and operation of an in-house central research institute. Acquisition of international manufacturing technologies through technical partnerships with leading overseas companies such as Maeda Tekko, Aichi Denki, and NTEC from Japan.ContinuousInvestmentinResearchandDevelopment:Focusonnewproductlaunchesandtechnologicaladvancementsthroughtheestablishmentandoperationofanin-housecentralresearchinstitute.AcquisitionofinternationalmanufacturingtechnologiesthroughtechnicalpartnershipswithleadingoverseascompaniessuchasMaedaTekko,AichiDenki,andNTECfromJapan.
Large buildings (63 Building, ASEM Tower, Hyundai Department Store, etc.)Largebuildings(63Building,ASEMTower,HyundaiDepartmentStore,etc.)
Hospitals (Seoul National University Hospital, Samsung Medical Center Cancer Center, Yonsei University Severance Hospital, Gangnam St. Mary's Hospital, Kyungpook National University Hospital, etc.)Hospitals(SeoulNationalUniversityHospital,SamsungMedicalCenterCancerCenter,YonseiUniversitySeveranceHospital,GangnamSt.Mary'sHospital,KyungpookNationalUniversityHospital,etc.)
Universities (Seoul National University, Yonsei University, Korea University, etc.)Universities(SeoulNationalUniversity,YonseiUniversity,KoreaUniversity,etc.)
Cultural facilities (Sejong Center for the Performing Arts, Seoul Arts Center, etc.)Culturalfacilities(SejongCenterforthePerformingArts,SeoulArtsCenter,etc.)
Sports facilities (Suwon, Jeju, Daegu World Cup Stadiums, etc.)Sportsfacilities(Suwon,Jeju,DaeguWorldCupStadiums,etc.)
Public institutions (Seoul City Hall, Daejeon Penitentiary, etc.)Publicinstitutions(SeoulCityHall,DaejeonPenitentiary,etc.)
Large production facilities (Hyundai Heavy Industries, Hyundai Motor, Kia Motors, etc.)Largeproductionfacilities(HyundaiHeavyIndustries,HyundaiMotor,KiaMotors,etc.)
Hotels and resorts (Hotel Shilla, Kangwon Land, etc.)Hotelsandresorts(HotelShilla,KangwonLand,etc.)
Patent registration for Dual Effect Economizer System development and installation (2013).PatentregistrationforDualEffectEconomizerSystemdevelopmentandinstallation(2013).
Acquisition of Public Procurement Service's Excellent Product Certification for Low-Carbon Condensing Boiler (2009).AcquisitionofPublicProcurementService'sExcellentProductCertificationforLow-CarbonCondensingBoiler(2009).
Awarded 'Energy Winner Award' for Condensing Boiler (1998).Awarded'EnergyWinnerAward'forCondensingBoiler(1998).
Recipient of the '2000 Korea Energy Grand Prize' (2000).Recipientofthe'2000KoreaEnergyGrandPrize'(2000).
Acquisition of SME Technology Innovation Product Certification for Inverter Condensing Boiler (2005).AcquisitionofSMETechnologyInnovationProductCertificationforInverterCondensingBoiler(2005).
Acquisition of Ministry of Science and Technology's New Excellent Technology (NET) Certification for Inverter Condensing Boiler (2005).AcquisitionofMinistryofScienceandTechnology'sNewExcellentTechnology(NET)CertificationforInverterCondensingBoiler(2005).
Awarded Presidential Industrial Medal (2005).AwardedPresidentialIndustrialMedal(2005).
Received Presidential Commendation for contributions to eco-friendly product development (2016).ReceivedPresidentialCommendationforcontributionstoeco-friendlyproductdevelopment(2016).
Awarded the '3 Million Dollar Export Tower' (2025).Awardedthe'3MillionDollarExportTower'(2025).
Obtained ISO 9001 (1998) and ISO 14001 (2005) certifications.ObtainedISO9001(1998)andISO14001(2005)certifications.
Acquisition of EM certification for Condensing Boiler (1997) and the first High-Efficiency Equipment Certification (1999).AcquisitionofEMcertificationforCondensingBoiler(1997)andthefirstHigh-EfficiencyEquipmentCertification(1999).
Received Green Technology Certification for 'High-efficiency technology for industrial boilers equipped with waste heat recovery heat exchanger' (applied to DMXN, DMXD, DRH models).ReceivedGreenTechnologyCertificationfor'High-efficiencytechnologyforindustrialboilersequippedwithwasteheatrecoveryheatexchanger'(appliedtoDMXN,DMXD,DRHmodels).
Acquired CE certification for export to Europe (EU) and ASME (American Society of Mechanical Engineers) certification for export to the United States.AcquiredCEcertificationforexporttoEurope(EU)andASME(AmericanSocietyofMechanicalEngineers)certificationforexporttotheUnitedStates.
Obtained TR-CU certification for export to Russia.ObtainedTR-CUcertificationforexporttoRussia.
Holds G-PASS designation, awarded to promising export companies for the overseas procurement market.HoldsG-PASSdesignation,awardedtopromisingexportcompaniesfortheoverseasprocurementmarket.
Achieved Ultra Low NOx certification from the Korea Environment Corporation and High-Efficiency certification from the Korea Energy Agency.AchievedUltraLowNOxcertificationfromtheKoreaEnvironmentCorporationandHigh-EfficiencycertificationfromtheKoreaEnergyAgency.