GARN Wood Heating System Product Line

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Product Name: WHS 1000 (Junior) WHS 2000 WHS 3200
Application: Residential Commercial
Max. Heat Output †: 180,000 btuh 325,000 btuh 700,000 btuh
BTU’s of storage (120 F to 195 F): 630,000 btus 1,170,000 btus 2,050,000 btus
Tested Efficiency (LHV): 80.0%* 88.4%* 85.0%
Particulate Emissions Output – PM2.5: 0.190 lbms/mmbtu 0.088 lbs/mmbtu Not Tested
Particulate Emissions Rate – PM2.5: 2.31 gr/hr 1.65 gr/hr Not Tested
Nominal Gallons of Storage: 980 gallons 1,830 gallons 3,200 gallons
Weight (Empty): 2,200 lbs 3,570 lbs 7,500 lbs
Weight (Filled): 10,370 lbs 18,830 lbs 34,500 lbs
Recommended Wood Length: 16″ to 24″ 24″ to 32″ 24″ to 42″
Recommended Wood Diameter: 3″ to 10″ 3″ to 10″ 4″ to 12″
Combustion Chamber Length: 36″ 40″ 50″
Combustion Chamber Diameter: 23″ 25″ 40″
Combustion Chamber Volume: 110 gallons 130 gallons 250 gallons
NPT Supply Flange: 1-1/2″ (18 gpm MAX) 2″ (33 gpm MAX) 3″ (70 gpm MAX)
MPT Return Pipe: 1″ 1-1/2″ 2-1/2″
Draft Inducer Motor: 1/2 HP 3/4 HP 3/4 HP
Electrical Requirements: 115 VAC 15 amp 115 VAC 15 amp 115 VAC 15 amp
Flue Diameter (2100°F/Class A): 6″ 6″ 10″
Air Intake Diameter (Single Wall): Includes Screened Intake Hood 7″ 7″ 10″

†Maximum heat output is based on reloading once every 3 hours with 24 inch long split white oak, with 20% moisture content. Output rate is fuel dependent and will vary with wood type, moisture content, size and reloading frequency. GARN® WHS units are certified safe to burn cord or slab wood, densified wood briquettes and air dried corn on the cob.

*Tested to ASTM-E2618

GARN WHS Manuals: