For nearly half a century, Quadra-Fire has led the stove industry in innovation and advanced combustion technology. Every wood model uses the patented Quadra-Fire Four-Point Burn System that burns and re-burns gases and smoke in four distinct zones of the firebox for high-performance heat. Today, Quadra-Fire sets the standard for clean and fuel-efficient wood heating.

Large Quadra-Fire Wood Stoves

5700 Step Top

Peak BTU/hr Input: 72,100
Heating Capacity: 1,400 - 3,700 sq ft
Efficiency: 80% (LHV) / 74% (HHV)
Firebox: 3.0 cu ft
Recommended Log Length: 22"

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4300 Step Top

Peak BTU/hr Input: 61,700
Heating Capacity: 1,100 - 3,000 sq ft
Efficiency: 80% (LHV) / 74% (HHV)
Firebox: 2.3 cu ft
Recommended Log Length: 18"

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4300 Millennium

Peak BTU/hr Input: 61,700
Heating Capacity: 1,100 - 3,000 sq ft
Efficiency: 80% (LHV) / 74% (HHV)
Firebox: 2.3 cu ft
Recommended Log Length: 18"

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Discovery III

Peak BTU/hr Input: 61,700
Heating Capacity: 1,100 - 3,000 sq ft
Efficiency: 80% (LHV) / 74% (HHV)
Firebox: 2.3 cu ft
Recommended Log Length: 18"

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Medium Sized Quadra-Fire Stoves

3100 Millennium

Peak BTU/hr Input: 51,000
Heating Capacity: 1,000 - 2,600 sq ft
Efficiency: 78% (LHV) / 73% (HHV)
Firebox: 2.0 cu ft
Recommended Log Length: 16”

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Discovery II

Peak BTU/hr Input: 51,000
Heating Capacity: 1,000 - 2,600 sq ft
Efficiency: 78% (LHV) / 73% (HHV)
Firebox: 1.9 cu ft
Recommended Log Length: 16"

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Small Sized - Quadra-Fire Wood Stoves

2100 Millennium

Peak BTU/hr Input: 44,400
Heating Capacity: 800 - 2,100 sq ft
Efficiency: 82% (LHV) / 76% (HHV)
Firebox: 1.5 cu ft
Recommended Log Length: 16"

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Discovery I

Peak BTU/hr Input: 44,400
Heating Capacity: 800 - 2,100 sq ft
Efficiency: 82% (LHV) / 76% (HHV)
Firebox: 1.48 cu ft
Recommended Log Length: 16"

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Quadra-Fire Wood Inserts

Expedition II

Peak BTU/hr Input: 56,000
Heating Capacity: 1,300 - 2,400 sq ft
Efficiency: 77% (LHV) / 71% (HHV)
Firebox: 2.4 cu ft
Recommended Log Length: 20"

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Expedition I

Peak BTU/hr Input: 37,400
Heating Capacity: 650 - 1,300 sq ft
Efficiency: 70% (LHV) / 65% (HHV)
Firebox: 2.0 cu ft
Recommended Log Length: 18"

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