{"product_id":"holzvergaserkessel-rojek-pk-bio-25-25-kw","title":"ROJEK PK BIO 25 wood gasification boiler – 25 kW for log wood","description":"\u003cdiv class=\"gema-section\"\u003e \u003ch2\u003eProduct Overview \u0026amp; Application Area\u003c\/h2\u003e \u003cp\u003eThe ROJEK PK BIO 25 is a manually fed wood gasification boiler with a nominal output of 25 kW for dry split logs. The pyrolysis principle combines a large fuel chamber with electronically assisted combustion control and is suitable for appropriately designed hot water central heating systems in residential buildings, workshops, and similar applications.\u003c\/p\u003e \u003cp\u003eThe 130-liter filling chamber accommodates split logs up to 530 mm in length and 250 mm in diameter. Top loading allows the available combustion chamber volume to be utilized effectively. With suitable fuel quality and operating methods, long burn times are possible.\u003c\/p\u003e \u003c\/div\u003e \u003cdiv class=\"gema-section\"\u003e \u003ch2\u003eTechnology \u0026amp; Equipment\u003c\/h2\u003e \u003cp\u003eThe PK BIO 25 operates with electronic control and an induced draft fan. Combustion management is thus adapted to the boiler\u0026#39;s operating conditions. The wood gasification boiler achieves an efficiency of 90.0% when burning split logs, meets boiler class 5, and complies with Ecodesign requirements.\u003c\/p\u003e \u003cp\u003eCleaning of the fire-tube heat exchanger is supported by an externally mounted operating lever. The operating mechanism can be structurally relocated to the left side of the boiler. A cooling loop enables the integration of the required thermal safety device against overheating.\u003c\/p\u003e \u003cp\u003eThe door hinge is on the right as standard and can be ordered as a factory option on the left. The flue gas outlet is vertical in the PK-BIO series. A horizontal flue gas outlet variant is not available as a regular factory option for the PK BIO 25.\u003c\/p\u003e \u003c\/div\u003e \u003cdiv class=\"gema-section\"\u003e \u003ch2\u003eEveryday Benefits\u003c\/h2\u003e \u003cp\u003eTop loading makes it easier to insert longer logs and allows good use of the large fuel space. The induced draft fan supports combustion and improves flue gas flow during operation. The electronic control handles essential boiler control functions.\u003c\/p\u003e \u003cp\u003eAn externally mounted operating lever is available for regular cleaning. The combustion chamber, heat exchanger, and flue gas paths remain easily accessible within the scope of scheduled maintenance. The door, which can be hinged on the right or left, also allows adaptation to different space conditions in the boiler room.\u003c\/p\u003e \u003c\/div\u003e \u003cdiv class=\"gema-section\"\u003e \u003ch2\u003eSystem integration \u0026amp; compatibility\u003c\/h2\u003e \u003cp\u003eThe required chimney draft is between 12 and 17 Pa. The flue gas outlet has a diameter of 159 mm. For proper boiler operation, a minimum temperature of 63 °C must be maintained.\u003c\/p\u003e \u003cp\u003eThe PK BIO 25 is designed to operate in conjunction with a buffer tank. A minimum reference value of 1,000 liters should be assumed. Buffer tank, return temperature control, pumps, expansion vessel, and safety devices must be matched to the heating load, system hydraulics, and operating mode.\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 at a glance\u003c\/h2\u003e \u003ctable class=\"product-th__table\"\u003e \u003ctbody\u003e\u003ctr\u003e\n\u003ctd class=\"product-th__label\"\u003eNominal output\u003c\/td\u003e\n\u003ctd class=\"product-th__value\"\u003e25 kW\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd class=\"product-th__label\"\u003eFuel\u003c\/td\u003e\n\u003ctd class=\"product-th__value\"\u003edry split logs\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd class=\"product-th__label\"\u003eCombustion technology\u003c\/td\u003e\n\u003ctd class=\"product-th__value\"\u003eWood gasification \/ pyrolysis boiler\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd class=\"product-th__label\"\u003eEfficiency\u003c\/td\u003e\n\u003ctd class=\"product-th__value\"\u003e90.0%\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd class=\"product-th__label\"\u003eBoiler class\u003c\/td\u003e\n\u003ctd class=\"product-th__value\"\u003eClass 5\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd class=\"product-th__label\"\u003eEnergy efficiency class\u003c\/td\u003e\n\u003ctd class=\"product-th__value\"\u003eA+\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd class=\"product-th__label\"\u003eMax. log length\u003c\/td\u003e\n\u003ctd class=\"product-th__value\"\u003e530 mm\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd class=\"product-th__label\"\u003eRequired chimney draft\u003c\/td\u003e\n\u003ctd class=\"product-th__value\"\u003e12–17 Pa\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd class=\"product-th__label\"\u003eFlue pipe connection\u003c\/td\u003e\n\u003ctd class=\"product-th__value\"\u003e159 mm\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd class=\"product-th__label\"\u003eHeating water connection\u003c\/td\u003e\n\u003ctd class=\"product-th__value\"\u003e2 inches\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd class=\"product-th__label\"\u003eMax. operating pressure\u003c\/td\u003e\n\u003ctd class=\"product-th__value\"\u003e2 bar\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd class=\"product-th__label\"\u003eMax. operating temperature\u003c\/td\u003e\n\u003ctd class=\"product-th__value\"\u003e90 °C\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd class=\"product-th__label\"\u003eMinimum operating temperature\u003c\/td\u003e\n\u003ctd class=\"product-th__value\"\u003e63 °C\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd class=\"product-th__label\"\u003eElectrical connection\u003c\/td\u003e\n\u003ctd class=\"product-th__value\"\u003e230 V \/ 50 Hz\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd class=\"product-th__label\"\u003eElectrical power consumption\u003c\/td\u003e\n\u003ctd class=\"product-th__value\"\u003emax. 76 W \/ standby 3 W\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd class=\"product-th__label\"\u003eRecommended buffer tank\u003c\/td\u003e\n\u003ctd class=\"product-th__value\"\u003eat least 1,000 l\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd class=\"product-th__label\"\u003eDimensions W × D × H\u003c\/td\u003e\n\u003ctd class=\"product-th__value\"\u003e784 × 923 × 1,186 mm without control lever; width incl. control lever 916 mm\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd class=\"product-th__label\"\u003eWeight\u003c\/td\u003e\n\u003ctd class=\"product-th__value\"\u003e505 kg\u003c\/td\u003e\n\u003c\/tr\u003e \u003c\/tbody\u003e\u003c\/table\u003e \u003c\/div\u003e \u003cdiv class=\"gema-section\"\u003e \u003ch2\u003eInstallation\u003c\/h2\u003e \u003cp\u003eInstallation, hydraulic connection, electrical supply, and flue gas connection must be carried out by qualified personnel. The chimney must be suitable for the required draft range of 12 to 17 Pa. When planning the installation, sufficient space must be provided for top loading, door opening, the operating lever for heat exchanger cleaning, and the required maintenance areas.\u003c\/p\u003e \u003c\/div\u003e \u003cdiv class=\"gema-section\"\u003e \u003ch2\u003eNotes\u003c\/h2\u003e \u003cp\u003eFor proper wood gasification operation, sufficiently dry split logs are required. The minimum operating temperature of 63 °C must be maintained. The right-hand door hinge is the standard version; a left-hand hinged factory version can be selected when ordering. The flue gas outlet is vertical.\u003c\/p\u003e \u003c\/div\u003e \u003cdiv class=\"gema-section\"\u003e \u003ch2\u003eScope of delivery\u003c\/h2\u003e \u003cul\u003e \u003cli\u003eROJEK PK BIO 25 wood gasification boiler in selected door version\u003c\/li\u003e \u003cli\u003eElectronic boiler control\u003c\/li\u003e \u003cli\u003eFlue gas fan\u003c\/li\u003e \u003cli\u003eIntegrated cooling loop\u003c\/li\u003e \u003cli\u003eOperating mechanism for heat exchanger cleaning\u003c\/li\u003e \u003cli\u003eOperating and installation instructions\u003c\/li\u003e \u003c\/ul\u003e \u003c\/div\u003e","brand":"Rojek","offers":[{"title":"rechts (Standard)","offer_id":58775866868060,"sku":"RPKB25","price":5505.89,"currency_code":"EUR","in_stock":true},{"title":"links","offer_id":58775866900828,"sku":"RPKB25_TAlinks","price":5736.6,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0757\/7796\/6428\/files\/gema-shop-rojek-pk-bio-25-holzvergaserkessel.jpg?v=1787565170","url":"https:\/\/at.gemashop.de\/en\/products\/holzvergaserkessel-rojek-pk-bio-25-25-kw","provider":"GEMA Shop","version":"1.0","type":"link"}