To provide a combustion chamber with a window for a wood pellet stove capable of minimizing a degree of soot fouling of the glass window.

The combustion chamber for the wood pellet stove 1 comprises a combustion pot 14 for burning wood pellets, a heat exchange part 15 receiving its combustion air and transferring heat to indoor air, and a heat insulating circumferential wall 11 guiding the combustion air of the combustion pot 14 to the heat exchange part 15. The glass window 12 providing an internal view from a body front face is formed on the heat insulating circumferential wall 11, and a hanging plate 13p is downward formed on an upper side part 12t of the glass window 12 in an inwardly retreated position between a glass face and the heat exchange part 15.