{"product_id":"holzvergaserkessel-defro-optima-hg-32-kw","title":"Wood Gasification Boiler Defro Optima HG 32 kW","description":"\u003cdiv class=\"gema-section\"\u003e \u003ch2\u003eProduct Overview \u0026 Application\u003c\/h2\u003e \u003cp\u003eThe Defro Optima HG 32 kW wood gasification boiler is a manually fed log wood boiler for water-based warm water heating systems. It is suitable for heating systems where split logs are used as fuel and the generated heat is integrated into the heating system via a buffer tank.\u003c\/p\u003e \u003cp\u003eThe 32 kW version belongs to the higher output class of the Optima HG series and is intended for systems with a correspondingly designed heating system, a suitable chimney, and professionally dimensioned hydraulics.\u003c\/p\u003e \u003c\/div\u003e \u003cdiv class=\"gema-section\"\u003e \u003ch2\u003eTechnology \u0026 Equipment\u003c\/h2\u003e \u003cp\u003eThe Optima HG operates as a wood gasification boiler with an upper filling chamber and a lower combustion chamber. The wood is first degassed, and the resulting wood gases are directed through the combustion nozzle into the lower combustion chamber where they are afterburned.\u003c\/p\u003e \u003cp\u003eFor heat transfer, the boiler uses a tubular heat exchanger with turbulators. The combustion chambers are lined with fireclay bricks designed for the gasification process and high combustion temperatures. An induced draft fan supports the control of primary and secondary air, while the electronic control system monitors boiler operation.\u003c\/p\u003e \u003c\/div\u003e \u003cdiv class=\"gema-section\"\u003e \u003ch2\u003eEveryday Benefits\u003c\/h2\u003e \u003cp\u003eThe wide filling door makes it easier to load split logs, and the design with separate doors provides access to the filling, combustion, and ash areas. A cleaning mechanism is provided for cleaning the heat exchangers, allowing regular maintenance tasks to be carried out more systematically.\u003c\/p\u003e \u003cp\u003eThe standard safety temperature limiter interrupts the power supply to the fan if the boiler temperature becomes too high. This ensures the boiler is designed for controlled operation within the intended system conditions.\u003c\/p\u003e \u003c\/div\u003e \u003cdiv class=\"gema-section\"\u003e \u003ch2\u003eSystem Integration \u0026 Compatibility\u003c\/h2\u003e \u003cp\u003eThe Defro Optima HG 32 kW is intended for closed heating systems according to DIN 12828. Operation requires integration into a system with a buffer tank so that the generated heat can be continuously absorbed and later released as needed to the heating circuit or domestic hot water preparation.\u003c\/p\u003e \u003cp\u003eFor stable system operation, a professionally designed return temperature boost, appropriate safety devices, a suitable chimney, and coordination with the responsible specialist company or chimney sweep are particularly important.\u003c\/p\u003e \u003c\/div\u003e \u003cstyle\u003e .product-th{margin-top:2rem}.product-th h2{margin:0 0 1rem}.product-th__table{width:100%;border-collapse:separate;border-spacing:0}.product-th__table td{padding:.95rem 1rem;vertical-align:top}.product-th__label{font-weight:700;width:38%;color:#213670}.product-th__value{color:#1f2937}.product-th__table tr:nth-child(odd) td{background:#f4f7fb}.product-th__table tr:nth-child(even) td{background:#fafbfd} \u003c\/style\u003e \u003cdiv class=\"product-th\"\u003e \u003ch2\u003eTechnical Data Overview\u003c\/h2\u003e \u003cp\u003eThe following technical specifications summarize the confirmed core data of the Defro Optima HG 32 kW.\u003c\/p\u003e \u003ctable class=\"product-th__table\"\u003e \u003ctbody\u003e \u003ctr\u003e \u003ctd class=\"product-th__label\"\u003eNominal Output\u003c\/td\u003e \u003ctd class=\"product-th__value\"\u003e32 kW\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd class=\"product-th__label\"\u003eFuel\u003c\/td\u003e \u003ctd class=\"product-th__value\"\u003eSplit logs \/ hardwood, residual moisture 12–20%\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd class=\"product-th__label\"\u003eCombustion Technology\u003c\/td\u003e \u003ctd class=\"product-th__value\"\u003eWood gasification\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd class=\"product-th__label\"\u003eEfficiency\u003c\/td\u003e \u003ctd class=\"product-th__value\"\u003e92.4%\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd class=\"product-th__label\"\u003eEnergy Efficiency Class\u003c\/td\u003e \u003ctd class=\"product-th__value\"\u003eA+\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd class=\"product-th__label\"\u003eMax. Flow Temperature\u003c\/td\u003e \u003ctd class=\"product-th__value\"\u003e90 °C\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd class=\"product-th__label\"\u003eMax. Operating Pressure\u003c\/td\u003e \u003ctd class=\"product-th__value\"\u003e3.0 bar\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd class=\"product-th__label\"\u003eMax. Log Length\u003c\/td\u003e \u003ctd class=\"product-th__value\"\u003eapprox. 515 mm\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd class=\"product-th__label\"\u003eBoiler Class\u003c\/td\u003e \u003ctd class=\"product-th__value\"\u003e5 according to EN 303-5\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd class=\"product-th__label\"\u003eDraft Requirement\u003c\/td\u003e \u003ctd class=\"product-th__value\"\u003e17 Pa\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd class=\"product-th__label\"\u003eFlue Gas Temperature\u003c\/td\u003e \u003ctd class=\"product-th__value\"\u003e130 °C\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd class=\"product-th__label\"\u003eFlue Pipe Connection\u003c\/td\u003e \u003ctd class=\"product-th__value\"\u003e130 mm\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd class=\"product-th__label\"\u003eSafety Heat Exchanger\u003c\/td\u003e \u003ctd class=\"product-th__value\"\u003eYes, built-in\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd class=\"product-th__label\"\u003eBuffer Tank Recommended\u003c\/td\u003e \u003ctd class=\"product-th__value\"\u003eYes, intended for operation\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd class=\"product-th__label\"\u003eHeight\u003c\/td\u003e \u003ctd class=\"product-th__value\"\u003e1560 mm\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd class=\"product-th__label\"\u003eWidth\u003c\/td\u003e \u003ctd class=\"product-th__value\"\u003e620 mm\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd class=\"product-th__label\"\u003eDepth\u003c\/td\u003e \u003ctd class=\"product-th__value\"\u003e1155 mm\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd class=\"product-th__label\"\u003eVoltage\u003c\/td\u003e \u003ctd class=\"product-th__value\"\u003e230 V\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd class=\"product-th__label\"\u003eFrequency\u003c\/td\u003e \u003ctd class=\"product-th__value\"\u003e50 Hz\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd class=\"product-th__label\"\u003eFuse Protection\u003c\/td\u003e \u003ctd class=\"product-th__value\"\u003e3.15 A\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd class=\"product-th__label\"\u003ePhases\u003c\/td\u003e \u003ctd class=\"product-th__value\"\u003e1N\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd class=\"product-th__label\"\u003eElectronic Control\u003c\/td\u003e \u003ctd class=\"product-th__value\"\u003eYes\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd class=\"product-th__label\"\u003eWeight\u003c\/td\u003e \u003ctd class=\"product-th__value\"\u003eapprox. 540 kg\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003c\/div\u003e \u003cdiv class=\"gema-section\"\u003e \u003ch2\u003eInstallation\u003c\/h2\u003e \u003cp\u003eThe installation of the wood gasification boiler must be carried out by qualified specialist personnel in accordance with applicable regulations and manufacturer specifications. Before commissioning, the hydraulic integration, safety devices, electrical connection, water filling, and connection to the exhaust system must be professionally checked.\u003c\/p\u003e \u003cp\u003eThe connection to the chimney should be coordinated with the responsible chimney sweep before installation. For boiler operation, an adequate fresh air supply, a suitable installation room, a buffer tank, and a return temperature boost with sufficient return temperature are essential.\u003c\/p\u003e \u003c\/div\u003e \u003cdiv class=\"gema-section\"\u003e \u003ch2\u003eNotes\u003c\/h2\u003e \u003cp\u003eThe boiler is intended for operation with suitable hardwood in log form. The use of other fuels or non-approved materials is not intended.\u003c\/p\u003e \u003cp\u003eFor safe and long-term operation, the operating manual, water quality specifications, regular cleaning, and maintenance intervals must be observed. The output selection should always be based on the specific building and system conditions.\u003c\/p\u003e \u003c\/div\u003e \u003cdiv class=\"gema-section\"\u003e \u003ch2\u003eScope of Delivery\u003c\/h2\u003e \u003cul\u003e \u003cli\u003eDefro Optima HG 32 kW wood gasification boiler\u003c\/li\u003e \u003cli\u003eInstallation and operating manual\u003c\/li\u003e \u003cli\u003eWarranty card\u003c\/li\u003e \u003cli\u003eElectronic control system\u003c\/li\u003e \u003cli\u003eInduced draft fan\u003c\/li\u003e \u003cli\u003eAnalog boiler thermometer\u003c\/li\u003e \u003cli\u003eCleaning mechanism for heat exchanger cleaning\u003c\/li\u003e \u003cli\u003eFilling and combustion chamber lining\u003c\/li\u003e \u003cli\u003eCombustion nozzle\u003c\/li\u003e \u003cli\u003eCleaning tool\u003c\/li\u003e \u003cli\u003eBuilt-in safety heat exchanger\u003c\/li\u003e \u003cli\u003eTurbulators\u003c\/li\u003e \u003c\/ul\u003e \u003c\/div\u003e","brand":"Defro","offers":[{"title":"Default Title","offer_id":47413903491420,"sku":"DOHG32","price":4979.39,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0757\/7796\/6428\/files\/defro-optima-hg-holzvergaserkessel-32-kw-effizient-modern-6036609.png?v=1770692839","url":"https:\/\/fr.gemashop.de\/en\/products\/chaudiere-a-gaz-de-bois-defro-optima-hg-32-kw","provider":"GEMA Shop","version":"1.0","type":"link"}