Viessmann WB2 15-60, Vitodens 200 Condensing Boiler, Natural Gas Unit (230,000 BTU)

Model: WB2 15-60 A.F.U.E: 95.2 Dimensions (in.): 21.25 L x 23.5 W x 35.5 H Dimensions (mm): 540 L x 600 W x 900 H Boiler Vent Connection (in.) (flue gas / fresh air): (4 5/16) / 6 Boiler Vent Connection (mm) (flue gas / fresh air): 100 / 150 Shipping weight (lbs): 287 Recommended Pump or Flanges: Taco 0011-IFC Natural gas Input Range: 80-230 MBH Output Range: 71-205 MBH * Propane gas also available - Please call for this option Input Range: 80-214 MBH Output Range: 71-191 MBH Required Boiler Installation Kit: Propane gas > Natural gas: 7134 253 Features Modulation range extended from 1:3 to 1:4 Inox-Radial heat exchanger Minimum service requirement through self-cleaning of the smooth stainless steel surfaces and the same flow direction for flue gas and condensate High corrosion resistance through high grade stainless steel 1.4571 New cylinder burner with MatriX surface ? in-house development and manufacture Clean combustion Long service life through stainless steel MatriX mesh Optimum matching of heat exch...