Napoleon gas stoves are all direct vent, which means they use a sealed pipe, burn outside air and need no masonry chimney. The catalog has seven: the Knightsbridge GDS60 in black and brown, the Havelock at 28 inches, the Haliburton at 23 inches, the Castlemore at 24 inches, the Bayfield at 24 inches and the compact Arlington at 19 inches. Ratings go from 20,000 to 44,000 BTU. Five of the seven are cast iron, so you can choose by size, heat output and finish.
Sort the line by room size. The 19 inch Arlington at 20,000 BTU is the smallest and best for tight spaces. The Bayfield at 24,500 BTU and the Castlemore at 25,000 BTU suit small to medium rooms, the Haliburton at 30,000 BTU and Knightsbridge at 35,000 BTU handle mid-size living areas, and the Havelock at 44,000 BTU is the high-output option. Next, think about venting: all use direct vent, so choose a spot where a pipe run to an exterior wall or roof is practical. Plan the hearth protection and the clearances in the manuals, and have the gas connection done by a licensed fitter.
The Arlington at 19 inches and 20,000 BTU is the smallest in the catalog. Next up are the Bayfield and Castlemore at 24 inches.
Five of the seven listings are cast iron: the Knightsbridge in both finishes, the Castlemore, the Bayfield and the Arlington. The Haliburton and Havelock are listed as gas stoves.