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Flex Series
Automated Fuel Hopper. Days Between Refills. Automated pellet furnace built for less hands-on heating.
409 Titanium Enhanced Stainless Steel • American Made in International Falls, MN • 20-Year Warranty
Automated Fuel Hopper. Days Between Refills. Automated pellet furnace built for less hands-on heating.
409 Titanium Enhanced Stainless Steel • American Made in International Falls, MN • 20-Year Warranty
An automated hopper and self-adjusting combustion system built to cut down on loading and hands-on tending.
Check water level at a glance, no guessing.
Illuminated display makes settings easy to read day or night.
1,400 lb hopper with an EZ-Fill door for easy refueling.
Automated ignition starts the fire with no manual lighting.
Draft and auger feed self-adjust to match heating demand.
Sight glass lets you check the fire without opening the door.
The Bio200's Omni-O.2 combustion system and dual heat exchangers, step by step.
Combustion air enters the rear of the stove through a PLC-controlled actuated damper.
A negative draft fan draws combustion air through the Omni-O.2 burn pot, supporting both primary and secondary combustion.
The resulting super-heated air passes through a series of primary heat exchanger tubes and across the bottom of the boiler for substantial heat transfer.
Hot exhaust flows through a series of secondary exchanger tubes for additional thermal efficiency before the low-temperature gases exit through the Class-A chimney.
The large-capacity hopper and automated fuel feed can provide several days to weeks of heating between refills, depending on demand, fuel, and outdoor temperature.
Automated fuel delivery and self-modulating airflow adjust to heating demand, cutting down on loading, monitoring, and manual adjustments.
The Omni-O.2 combustion system distributes air around the fuel to support complete combustion and secondary gasification for cleaner-burning heat.
Combines the efficiency and eco-friendliness of biomass heating with the ease and automation of a modern system.
Sized for residential heating, with enough capacity to extend heat to additional buildings or support select commercial applications.
USA-manufactured 409 Titanium Enhanced Stainless Steel construction, backed by a 20-year limited warranty.
Dependable, automated heat for single-family homes, with extended burn times that cut down on refueling.
An efficient outdoor heat source for recreational water applications.
Provides hot water for homes and other properties with a compatible domestic hot water system.
Comfortable, even heat through radiant floors in homes, garages, workshops, and barns.
Maintains consistent temperatures in greenhouses and growing spaces through cold weather.
Keeps garages and workshops comfortable without bringing the furnace or fuel handling indoors.
Dependable heat for barns, outbuildings, and agricultural spaces, with room to extend beyond the primary home.
Heat for snow-melt systems that help keep driveways, walkways, and other outdoor surfaces clear in winter.
Heating to support smaller businesses, offices, and other commercial spaces.
The Bio200 is the current Flex Series model.
Spec
Bio200
Estimated Weight
2,250 lbs (empty)
Heat Output Range
20,000–212,000 BTU
Firebox Door Size
16″ × 16″
Chimney Size
6″
Burn Pot Size
12.75″ × 7.5″ × 8″
Supply Size
1¼″
Return Size
1¼″
Water Capacity
135 gal
Fuel Capacity
1,400 lbs (augers full)
Approximate Coverage
5,000 sq ft
Approximate BTUs
20,000–220,000
EPA Certified
Yes
Efficiency (LHV)
96%
Efficiency (HHV)
89.2%
Electrical Rating
20 Amp
Average Emissions Rate
0.079 lbs/mmBTU
Maximum Emissions Rate
0.087 lbs/mmBTU
Annual Efficiency Rating
89.2%
Additional Details
Yes. The Bio200 can be set on a pad in multiple orientations, with floor knockouts on the sides and rear of the unit for flexible hookup.
It's recommended to clean out the ashes weekly. Cleaning the heat exchanger tubes regularly also keeps efficiency up, and the unit ships with an assortment of cleaning tools.
No, it is not required. If you do use glycol, it should be a 35–40% mix of propylene glycol formulated for heating applications, along with Crown Royal's "Control" rust inhibitor.
Use top-quality, residential-grade A wood pellets with under 10% moisture content. The Flex Series can burn both softwood and hardwood pellets.
Depending on fuel quality and heating load, a full hopper and augers can provide days to weeks of heat before you need to refuel.
The Flex Series comes with a preset 180°F target and a 10-degree differential, and the self-modulating draft inducer and augers adjust airflow and feed rate automatically. Manual adjustments are only needed if lower-quality pellets are used.
Every Flex Series furnace is backed by Crown Royal's 20-year limited warranty.
Full warranty details →Flex is an automated pellet-fed system built to run for days between refills. Pristine is a gasification boiler for seasoned cordwood, and Multi Pass is a traditional triple-pass furnace built for coal.