{"product_id":"holzvergaserkessel-attack-slx-20-profi","title":"Wood gasification boiler ATTACK SLX 20 PROFI 20 kW","description":"\u003cdiv class=\"gema-section\"\u003e \u003ch2\u003eProduct Overview \u0026amp; Application Area\u003c\/h2\u003e \u003cp\u003eThe ATTACK SLX 20 PROFI is a manually fed wood gasification boiler for closed hot water heating systems. With a nominal output of 20 kW and an output range of 10 to 20 kW, this version is suitable for central heating systems whose heat demand has been professionally matched to the boiler output.\u003c\/p\u003e \u003cp\u003eThe 200-liter filling chamber accommodates dry, split firewood with a length of up to 650 mm. The generously sized fuel chamber enables longer burn phases and reduces the effort required for splitting and reloading fuel.\u003c\/p\u003e \u003c\/div\u003e \u003cdiv class=\"gema-section\"\u003e \u003ch2\u003eTechnology \u0026amp; Equipment\u003c\/h2\u003e \u003cp\u003eThe temperature-controlled PROFI-PID controller processes boiler and flue gas temperatures and adjusts the speed of the induced draft fan to the operating state. In addition to the heating circuit pump, an additional controller output can optionally control a domestic hot water or buffer storage loading pump.\u003c\/p\u003e \u003cp\u003eIn the PROFI version, primary and secondary air are mechanically preset. A lambda sensor is not part of this control variant. The tubular heat exchanger with turbulators supports heat transfer to the heating water. An integrated safety heat exchanger allows the connection of a thermal drain safety device.\u003c\/p\u003e \u003c\/div\u003e \u003cdiv class=\"gema-section\"\u003e \u003ch2\u003eEveryday Benefits\u003c\/h2\u003e \u003cp\u003eThe 200-liter filling chamber and the maximum log length of 650 mm allow the use of longer logs. With suitable fuel quality, nominal operation, and a correctly matched system, the approximate burn duration is up to about eight hours per filling.\u003c\/p\u003e \u003cp\u003eThe PROFI-PID controller combines monitoring of boiler and flue gas temperatures with modulating fan control. The pump functions can be set according to the planned system hydraulics.\u003c\/p\u003e \u003c\/div\u003e \u003cdiv class=\"gema-section\"\u003e \u003ch2\u003eSystem Integration \u0026amp; Compatibility\u003c\/h2\u003e \u003cp\u003eFor the ATTACK SLX 20 PROFI, a buffer tank volume of 1,500 liters is recommended. The final sizing depends on the heating load, system hydraulics, heat consumption, operating mode, and the technical requirements of the respective building.\u003c\/p\u003e \u003cp\u003eThe flow and return connections are designed as G 6\/4 inch connections. The flue pipe connection has a diameter of 150 mm, and the required chimney draft is 23 Pa. A suitable return temperature boost must ensure a return temperature of at least 65 °C.\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\"\u003e20 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 firewood\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 boiler\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd class=\"product-th__label\"\u003eFuel efficiency at nominal output\u003c\/td\u003e\n\u003ctd class=\"product-th__value\"\u003e81.8%\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd class=\"product-th__label\"\u003eSeasonal space heating energy efficiency\u003c\/td\u003e\n\u003ctd class=\"product-th__value\"\u003e79%\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\"\u003eEnergy efficiency index\u003c\/td\u003e\n\u003ctd class=\"product-th__value\"\u003eEEI 116\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\"\u003eMaximum log length\u003c\/td\u003e\n\u003ctd class=\"product-th__value\"\u003e650 mm\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd class=\"product-th__label\"\u003eFlue gas temperature at rated load\u003c\/td\u003e\n\u003ctd class=\"product-th__value\"\u003e165 °C\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\"\u003e23 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\"\u003e150 mm\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd class=\"product-th__label\"\u003eFlow and return\u003c\/td\u003e\n\u003ctd class=\"product-th__value\"\u003eG 6\/4 inch\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd class=\"product-th__label\"\u003eSafety heat exchanger\u003c\/td\u003e\n\u003ctd class=\"product-th__value\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd class=\"product-th__label\"\u003eLambda sensor\u003c\/td\u003e\n\u003ctd class=\"product-th__value\"\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd class=\"product-th__label\"\u003eMaximum operating overpressure\u003c\/td\u003e\n\u003ctd class=\"product-th__value\"\u003e2.5 bar\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd class=\"product-th__label\"\u003eRecommended buffer tank volume\u003c\/td\u003e\n\u003ctd class=\"product-th__value\"\u003e1,500 liters\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 \/ 10 A\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd class=\"product-th__label\"\u003eAuxiliary power at rated output\u003c\/td\u003e\n\u003ctd class=\"product-th__value\"\u003e45 W\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd class=\"product-th__label\"\u003eProtection class\u003c\/td\u003e\n\u003ctd class=\"product-th__value\"\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd class=\"product-th__label\"\u003eDimensions H × W × D\u003c\/td\u003e\n\u003ctd class=\"product-th__value\"\u003e1,472 × 703 × 1,337 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\"\u003e570 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, chimney connection, electrical connection, initial commissioning, and safety inspection must be carried out by appropriately qualified professionals. The system requires an effective return temperature boost, a properly sized buffer tank, a safety valve, a thermal drain safety device, and a permanently secured heat dissipation.\u003c\/p\u003e \u003c\/div\u003e \u003cdiv class=\"gema-section\"\u003e \u003ch2\u003eNotes\u003c\/h2\u003e \u003cp\u003eFor proper operation, dry, split firewood with a recommended moisture content of about 12 to 20 % must be used. Wet or unsuitable fuel can impair performance and combustion quality and promote the formation of tar and condensate.\u003c\/p\u003e \u003cp\u003eThe required boiler output, buffer tank size, system hydraulics and chimney design must be determined on a project-specific basis. The performance data do not replace a heat load calculation or professional planning.\u003c\/p\u003e \u003c\/div\u003e \u003cdiv class=\"gema-section\"\u003e \u003ch2\u003eScope of delivery\u003c\/h2\u003e \u003cul\u003e \u003cli\u003eATTACK SLX 20 PROFI wood gasification boiler with integrated PROFI-PID control\u003c\/li\u003e \u003c\/ul\u003e \u003c\/div\u003e","brand":"Attack","offers":[{"title":"Default Title","offer_id":49418190225756,"sku":"ASLXP20","price":3800.42,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0757\/7796\/6428\/files\/attack-slx-profi-holzvergaserkessel-frontansicht.webp?v=1785844251","url":"https:\/\/si.gemashop.de\/products\/holzvergaserkessel-attack-slx-20-profi","provider":"GEMA Shop","version":"1.0","type":"link"}