A. The Escape 1800 provides a larger firebox, greater heating range, higher maximum output, and longer rated burn time than the Escape 1500.
The Escape 1800 DB03105 has a 2.4 ft³ firebox, a recommended heating range of 500 to 2,100 ft², up to 75,000 BTU/h maximum cordwood output, and up to 8 hours of burn time. The Escape 1500 DB03135 has a 1.86 ft³ firebox, a 500 to 1,800 ft² heating range, up to 65,000 BTU/h, and up to 7 hours of burn time.
The larger Escape 1800 is not automatically the better choice. A properly sized stove should match the building’s heat loss and expected operating conditions so it can provide useful heat without being consistently oversized.