G215 Series Oil Boiler

Putting Energy to Work! 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.

  • High Efficiency - AFUEs Above 86%
  • Thermostream Design Eliminates Thermal Shock
  • Flexible, Corrosion Resistant GL-180M Cast Iron
  • Full Swing Burner Door for Excellent Serviceability
  • 134,000 to 768,000 BTU/Hr Output
  • Minimizes stresses normally caused by rapid temperature changes
  • EnergyStar
  • Heavy gauge blue enameled jacket for durability
MODELOutput MBtuHIBR MBtuHFiring Rate GPHAFUEWater Content Gal.HxWxDWeight. Lbs.SUPPLY / RETURN CONNECTIONVENT CONNECTIONS
G215-3134.0 117.0 1.10 86.3 12.90 33.5 x 23.5 x 26.25 400 1.5 / 1.56
G215-4171.0 149.0 1.40 86.2 16.10 33.5 x 23.5 x 31 500 1.5 / 1.56
G215-5207.0 180.0 1.70 86.1 19.30 33.5 x 23.5 x 35.75 600 1.5 / 1.56
G215-6256.0 223.0 2.10 86.0 22.50 33.5 x 23.5 x 40.5 700 1.5 / 1.56
G215-7294.0 256.0 2.50 86.7 25.60 33.5 x 23.5 x 45.5 800 1.5 / 1.56

Warranty Information

  • Heat Exchanger - Limited Lifetime Warranty on Cast Iron Heat Exchanger in Residential Settings
  • All Parts for 12 months -

Available Documents

Registration Map