Cast iron construction, a bay window viewing area and Automatic Combustion Control (ACC) combine to make the 4100i an impressive heating option. ACC provides air when it’s needed most and efficiently manages burn levels. It’s a technology that lets you relax—and enjoy rolling Quadra-Fire flames from these low-emission wood fireplace inserts for years to come.
- 60,500 BTUs* — heats 1,100 to 2,800 square feet, based on climate and home efficiency
- EPA certified, with low emission levels of 4.3 grams per hour
- 2.4 cu ft firebox capacity / recommended 18" log length
- Up to 12 hours of burn time from each load of wood†
- Easy start-up
*The amount of heat produced by a heating appliance is measured in British Thermal Units (BTUs). One BTU represents the amount of energy required to raise the temperature of 1 lb. of water by 1 degree F. Generally, more BTUs correlate to greater heating potential. However, the amount of BTUs needed to heat a specific area varies, based on climate and home efficiency.