Product Overview & Application

The Atmos GS 15 wood gasification boiler is a manually fed hot water heating boiler designed for heating single-family homes and similar properties. This model is intended for burning split logs and is aimed at users seeking a classic wood heating system with gasifying combustion, a compact design, and clear, mechanical-electromechanical operating logic. The boiler operates with an induced draft fan and a ceramic-lined combustion chamber, supporting a quiet and technically clean burn. :contentReference[oaicite:0]{index=0}

Technology & Features

The boiler body is made of steel sheets, the fuel shaft is generously sized, and the lower combustion chamber is equipped with ceramic moldings. Combustion follows the principle of downdraft gasification with an exhaust fan. The boiler's standard equipment includes a thermometer, boiler thermostat, flue gas thermostat, main switch, start-up flap, and an integrated cooling loop to prevent overheating. Power regulation is managed via the air flap, boiler thermostat, and exhaust gas thermostat, keeping the technical design robust, understandable, and easy to maintain. :contentReference[oaicite:1]{index=1}

Everyday Benefits

In daily operation, the Atmos GS 15 is designed for straightforward, practical wood firing. The induced draft fan supports more comfortable refueling and stable combustion, while the ceramic combustion chamber and preheated primary and secondary air contribute to a clean burn. Relevant for the user are also the compact 15 kW power class, the burn duration at nominal output designed for short to medium heating intervals, and its suitability for dry split logs with a manageable log length. :contentReference[oaicite:2]{index=2}

System Integration & Compatibility

The boiler is intended for connection to a water-based heating system. According to the manufacturer's documentation, a return temperature boost, e.g., via a Laddomat 22 or a thermostatic control valve, must be provided to maintain the minimum return temperature. Operation with a buffer tank is expressly recommended; the technical specifications state a minimum buffer volume of 500 liters for the GS 15, while the German general distributor emphasizes a buffer volume of 825 liters for operation in compliance with the BImSchV. Professional planning is required for the design of the chimney, flue gas pipe, and hydraulics. :contentReference[oaicite:3]{index=3}

Installation

Installation must be carried out in a suitable boiler or heating room with adequate combustion air; installation in living spaces is not permitted. The manufacturer recommends a concrete or metal foundation. For the GS 15, the documents specify a foundation dimension of 600 x 600 mm. Integration into the heating system should be done with a professionally installed return temperature boost and a suitably sized chimney. The boiler connection to the chimney must be executed with sufficient draft and the shortest possible, upward-sloping flue gas pipe. :contentReference[oaicite:4]{index=4}

Notes

For a technically clean operation, only dry split or chopped wood with a residual moisture content of 12 to 20% is to be used. Fresh or overly damp wood significantly reduces output and efficiency and places greater strain on the boiler and chimney. During operation, a minimum return temperature of 65 °C must be maintained; the recommended flow temperature is 80 to 90 °C. According to the documents, commissioning and instruction should be carried out by an authorized specialist company. :contentReference[oaicite:5]{index=5}

Scope of Delivery

• Atmos GS 15 Wood Gasification Boiler
• Steel Brush with Accessories
• Poker
• Fill Valve
• Operating and Maintenance Manual
• Draft Regulator HONEYWELL FR 124
• Ash Pan