Sidewall Vented
Oil & Gas Water Heaters
5-Year limited warranty on residential installations
3-Year limited warranty on commercial installations
Featuring Bock’s Legendary
The heat exchanger with
hundreds of turbons to
boost heat transfer --
heating water faster
with less fuel.
20 to 113 Gallon capacities
60,000 to 190,000 BTU
Cobalt-enriched Glass-Lined Tank
Dual Magnesium Anode Rods to Inhibit
Corrosion
Stainless steel concentric sidewall vent for maximum durability and
easy installation. BCS sidewall venting offers these benets:
Air is warmed before entering burner to
improve combustion efciency
Burner operation is unaffected by
room exhaust fans or negative air issues
Corrosive aerosols near water heater
are not drawn into burner
Balanced
Combusion
System
™
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