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Biomass · Commercial
HeatMaster SS B Series
Commercial biomass chip boilers
Chips, pelletsag screenings or coal
Up to 1MBTU/hr
Autofuel feed, ignition and ash removal

About the B Series
HeatMaster SS B-Series biomass outdoor boilers are the new leaders in commercial biomass technology. With customizable options and packages for every situation, the B-Series is one of the most versatile biomass boilers available, and a great way to save money on large-scale heating needs.
Burn wood chips, wood pellets, ag screenings or coal.
Questions about which model fits? Call (715) 790-5636.
Features
Built into every B Series
Automatic tube cleaningA timer runs the flue cleaner on a regular schedule.
Wireless monitoringCheck system status from anywhere.
Guardian air lockKeeps fuel flowing properly and prevents burn-back to the fuel bin.
Automatic ash removalAn auger does the ash cleaning for you.
High-efficiency fireboxVertical heat exchange tubes transfer over 80% of the heat into the water.
Automatic fuel igniterA very hot burn that reacts quickly to heating demand.
Sight glassEasily check for proper combustion.
Models & specifications
Choose a B Series model

B500
Unlimited heat and hot water for large spaces and multiple applications.
400,000–500,000 BTU/hrBTU output
312 gallonsWater capacity
Callfor pricing
200–3,000 cu ftFuel storage
2 supply, 2 return, 2″Outlets
125/250V, 1 phase, 60Hz, 31 ampPower
40 ampMax breaker size
4,056 lbsWeight
8″ double-wall insulatedChimney size
| B500 | B1000 | |
|---|---|---|
| BTU output | 400,000–500,000 BTU/hr | 1,000,000 BTU/hr |
| Water capacity | 312 gallons | 597 gallons |
| Fuel storage | 200–3,000 cu ft | 200–3,000 cu ft |
| Outlets | 2 supply, 2 return, 2″ | 1–2″ pair and 1–3″ pair NPT |
| Power | 125/250V, 1 phase, 60Hz, 31 amp | 125/250V, 1 phase, 60Hz, 31 amp |
| Max breaker size | 40 amp | 40 amp |
| Weight | 4,056 lbs | 5,500 lbs |
| Chimney size | 8″ double-wall insulated | 10″ double-wall insulated |
| Dimensions with housing | — | 94″ W × 94″ H × 119″ L |
| MSRP (USD) | Call | Call |
B Series systems are configured per site. Call us for pricing.BTUs are approximate and vary with fuel quality.
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