Maximize comfort and dependability in cool weather with the Dometic Essential 18K Furnace DFSDH20121 Doorless Model. Now enhanced with an automotive-grade Hall Effect Sensor and built-in Soft Start, the Dometic Essential 18K Furnace Doorless Model delivers more reliable ignition and quieter startups. With 18% - 22% more airflow than the leading competitor, the Dometic Essential 18K Furnace distributes heat more evenly throughout the RV thanks to its advanced air baffle system and one-piece tubular heat exchanger, designed for long-lasting, efficient performance. Access door and thermostat sold separately.• Patent-pending Hall Effect Sensor for cleaner, debris-resistant ignition• On-Board Soft Start reduces in-rush current by 80% and jarring startup noise• 18% to 22% more airflow for even heat throughout• One-piece tubular design delivers efficient heat transfer and airflow distribution• Horizontal or vertical installation• Access door not includedSpecificationsModel: DFSDH20121Dimensions: 20"D x 12"W x 7"HWeight: 21 lbs. Input Voltage: 12V DCAmp Draw: 4.8Fuel Type: LPGHeating Capacity: 18, 000 BTU/h 18% to 22% more airflow than leading competitors Advanced air baffle system & one-piece tubular heat exchanger Can be installed horizontally or vertically | Dometic Essential 18K Furnace DFSDH20121, Doorless Model