Bock Water heaters High Efficiency Condensing Gas Water Heaters Leaflet

  60 to 100 gallons/125,000 to 399,999 BTU
  PVC Conventional, Through-the Wall, or Direct Vent
  Low NOx Premix Power Burner 
  Non-CFC foam insulation
  Electronic ignition and controls
  Zero inch clearance to combustibles
  Glass-lined storage tank
  Hand hole cleanout
  Sediment reduction system
  Standard and ASME construction
  NSF kit available
  3" Concentric vent kit available
  Complies with SCAQMD low NOx requirements
  Design certified by CSA International (formerly AGA/CGA)
  3-Year Limited Tank/1-Year Limited Parts Warranties