Bock Water heaters 51PG-BCS warranty Balanced Combusion System, Featuring Bock’s Legendary

Balanced

Combusion

System™

Sidewall Vented

Oil & Gas Water Heaters

Featuring Bock’s Legendary

The heat exchanger with hundreds of turbofins 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 benefits:

Air is warmed before entering burner to improve combustion efficiency

Burner operation is unaffected by room exhaust fans or negative air issues

Corrosive aerosols near water heater are not drawn into burner

5-Year limited warranty on residential installations3-Year limited warranty on commercial installations

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