Surner Heating Co

Putting Energy to Work!

Logano G315

The boiler sections are assembled with beveled, surface profiled push nipples for long, trouble-free watertight operation. Boiler flue ways are manufactured to be gas tight with tongue and groove section design and elastic, high temperature resistant sealing rope. This seal is fully pressed into the groove during assembly to allow positive pressure operation. A permanent dry door gasket ensures repeated positive sealing of the full swing burner door. Because flue gases cannot escape through the seams between boiler sections, the boilers are able to retain heat more efficiently.

Logano G215

Buderus developed a full three-pass system which increases the efficiency of the boilers. With single-pass boilers, the flue products have only one chance to heat the water. Buderus three-pass boilers triple this opportunity. The unique way heat flows through the G215 boiler allows the water to be heated three separate times. The full 3" thick thermal insulation helps to maintain a higher water temperature even after the boiler has gone into standby mode. The distinctive chamber design of the Buderus G215 also allows for nearly silent operation.

Advantages at a Glance

  • Eliminates "hot and cold spots" in the boiler
  • Minimizes stresses normally caused by rapid temperature changes
  • Operates at low return water temperatures
  • Balances water flow through all boiler sections


  • EnergyStar
  • Rear tappings and flue connection to streamline appearance
  • Baffles and clips for adjusting stack temperatures
  • Heavy gauge blue enameled jacket for durability and attractiveness
  • Full swing burner door hinged on either the left or right allowing for easy access
  • Front access plugs permit flushing of the boiler's interior

Product Literature

Description Model
Brochure G115WS Download
Brochure G125BE Download
Brochure G215/G315 Download