Check out the the Viessmann CA3B boiler. This boiler comes in sizes 2,500,000 Btu, 3,000,000 Btu, 3,500,000 Btu, 4,000,000 Btu, 5,000,000 Btu and 6,000,000 Btu sizes. This will take care of most large commercial areas including schools. See Flyer below for more info. If you want pricing or have application questions, create a ticket using the red tab on the left under commercial Sales.
BENEFITS AT A GLANCE
+ Low emissions and quiet operation from fully-modulating Viessmann pre-mix cylinder burners (up to 3)
+ Total burner modulation turndown ratio of up to 15:1 precisely matches load per boiler
+ The fully assembled boiler simplifies installation and commissioning
+ Flexibility for venting through the sidewall or chimney applications up to 100 ft. (equivalent length) and combustion air options of sealed combustion or room dependent
+Common venting up to four boilers*
+Gas fuel flexibility (NG/LPG/Dual Fuel**)
+ Low inlet gas pressure capability as low as 4” W.C. (NG) for compatibility with a range of supply pressures
+ Large water content extends burner run time and reduces cycling
+No dedicated boiler pump required due to low water pressure drop through heat exchanger
+Vitotronic 300 GW6C can be used as a single boiler control or as a cascade primary/secondary control system
+Seamless integration with building management systems + 0-10 VDC temperature setpoint input
Meets these Specifications:
+Certified BTS 2000 >96%
+Single inputs from 250,000 up to 6,000,000 Btu's
+Cascade system inputs up to 48,000,000 Btu's with external Vitocontrol-S
+ASME CSD-1 compliant