V73 Thru V79 Water Boiler With Tankless Heater (Wbt); V73 Thru V79 Steam Boiler With Or Without Tankless Heater ("Sbt"/"Sb") - Burnham V7 SERIES Installation & Operating Instructions Manual

Figure 1B: V73 thru V79 Water Boiler with Tankless Heater (WBT)
Figure 1C: V73 thru V79 Steam Boiler with or without Tankless Heater ("SBT" or "SB")
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