• Efficient energy utilization – AFUE’s of 96%
• Clean combustion
• May be connected to many different flue systems, even without availability of a chimney
• Space-saving installation of the Logamax allows minimal space used with direct wall mounting
• Flexible selection of the installation location
• Low power consumption
• Quiet operation
• Modulating operation, i.e. matched to the actual heat demand
• Available as boiler with integral Logamatic EMS control unit; easy to add an optional Buderus hot water tank or RC35 Control
• Integral aluminum heat exchanger with a large surface area for condensing operation all year round
• Optimum energy utilization and minimized operating costs through ETA plus system
• Output modulates between 30% and 100%
• Selectable flue gas routing: open flue version may be connected to an existing chimney; alternatively balanced flue connection with a system-certified balanced flue system (room sealed balanced flue)
• Outputs of 75, 95, 142, 199 MBH

• Designed for Stand-Alone or Cascades
• Ultra-High Efficiencies up to 96% with Low Flue Gas Emissions
• Ideal for Smaller Commercial Buildings and Large Residences
• Unique Manifold for Easy Installation of Single Units or Cascades
• Innovative ALU-plus Condensing Heat Exchanger for Long Life and Easy Servicing
• Modulation Ranging from 20% to 100%
• 2 Models with 290 MBH and 333 MBH Input, Cascades up to 2,664 MBH
• Compact Dimension, Light Weight, High Output Ø Innovative ALU Plus condensing heat exchanger for the longest possible life and easy servicing
• Efficiency of up to 94% AFUE
• Modulation down to 20% of total output for year round efficiency
• Compact and lightweight
• Cascades up to 8 units
• Quick-Install: innovative cascade concept for easy installation
• Ideal for smaller commercial buildings and large domestic properties
• No minimum flow rate required
• Whisper quiet
• Low flue gas emissions
• Integrated BC10 boiler controls with space for the optional RC35 Digital Programmer and extension modules
• LPG conversion kit available
• 1 year parts, Limited Lifetime warranty on the heat exchanger

• GB312 Series Natural Gas Condensing Boiler
• High Efficiency - AFUE’s up to 93.4%
• Modulating Natural Gas Pre-mix Burner for Extremely Quiet Operation
• Lightweight, High Performance Aluminium Heat Exchanger for Maximum Heat Transfer
• Quick and Easy Installation
• 305 to 955 MBH Output: 6 Models Available
• EMS Logamatic Control System: Digital link-up with the SAFe burner control unit
• Modulating premix gas burner: With a wide modulation range and good
• accessibility
• Combustion Air Fan: Variable speed for low power consumption
• High Output Aluminum Heat Exchanger: With insulation for minimum thermal losses and maximum energy yield Generously Sized Clean-Out Apertures:
• For easy maintenance and inspection from the front
• Neutralizing System: Integrates under the boiler jacket

• Ultra-high efficiency − up to 98%
• Inexpensive installation with comprehensive equipment and simple system technology
• Low NOx and CO output levels with conventional burners as a result of the full three-pass flue design
• Kondens® technology
• Ultra High Efficiency - Up to 98%
• No Restriction on Return Temperature and Flow Rates
• Stainless Steel Hydro-Formed Fire Tubes for Long Life
• Dual Returns Provide Unique Design Opportunities
• Suitable for Natural Gas or Liquid Propane Forced Draft Burners
• Low NOx and CO Levels, Meeting Air Quality Control Regulations
• 484 to 4,079 MBH Output
• Simple design eliminates the need for dedicated boiler pumps, bypass or shut pumps
• Perfect match for Thermostream boilers in multiple boiler systems

The SB735’s proprietary Buderus Kondens heating surface generates up to 10% greater condensation versus smooth surfaces. Its intelligent water channeling facilitates the condensation process and created even greater energy efficiency (up to 98%).

Features:

• Ultra High Effi ciency - Up to 98%
• No Restriction on Return Temperature and Flow Rates
• Stainless Steel Hydro-Formed Fire Tubes for Long Life
• Dual Returns Provide Unique Design Opportunities
• Suitable for Natural Gas or Liquid Propane Forced Draft Burners
• Low NOx and CO Levels, Meeting Air Quality Control Regulations
• 484 to 4,079 MBH Output
• Ultra High Efficiency - Up to 98%
• No Restriction on Return Temperature and Flow Rates
• Stainless Steel Hydro-Formed Fire Tubes for Long Life
• Dual Returns Provide Unique Design Opportunities
• Suitable for Natural Gas or Liquid Propane Forced Draft Burners
• Low NOx and CO Levels, Meeting Air Quality Control Regulations
• 484 to 4,079 MBH Output
• Simple design eliminates the need for dedicated boiler pumps, bypass or shut pumps
• Perfect match for Thermostream boilers in multiple boiler systems

Buderus Logano G315 Thermostream® boilers are designed for increased longevity and efficiency.

Features:

• Optimum operating savings through long service life
• Clean combustion through low combustion chamber loading
• Reliable operation without shunt pump and return temperature control through Thermostream technology
• Suitable for operation with B5 Oil, natural gas, LPG
• Easy installation of third party burners with the aid of predrilled burner plates
• For oil or gas combustion with modulating boiler water temperature control without minimum return temperature
• Boiler design with Thermostream technology for reliable operation without shunt pump and return temperature control
• Water-cooled combustion chamber with low combustion chamber loading and hot gas routing in accordance with the three-pass principle
• Boiler suitable for oil or gas
• Unit versions with a pressure-jet oil and gas burner matched to the boiler for clean combustion and high seasonal efficiency upto AFUE 87%+
• Easy handling through delivery of the boiler block in sections
• Optional assembly of the boiler block at the factory
• Easy installation of third party burners with the aid of predrilled burner plates
• Outputs of 350, 454, 559, 663, 768 MBH

The G515 has high combustion efficiencies – 88% on oil and 85.5% on gas. Fueled by gas or oil. This cast iron boiler builds its reputation on its exceptional flexibility. Retrofitting is as easy as can be – with relatively little effort can you benefit from the highly effective technology that convinces through its high energy exploitation and clean combustion.

Features:

• Optimum operating savings through long service life
• Clean combustion through low combustion chamber loading
• Reliable operation without shunt pump and return temperature control through Thermostream technology
• Suitable for operation with B5 Oil, natural gas, LPG
• Easy installation of third party burners with the aid of predrilled burner plates
• Ecostream low temperature boiler for oil or gas combustion with modulating boiler water temperature control without minimum return temperature
• Boiler design with Thermostream technology for reliable operation without shunt pump and return temperature control
• Water-cooled combustion chamber with low combustion chamber loading and hot gas routing in accordance with the three-pass principle
• Boiler suitable for oil or gas
• Unit versions with a pressure-jet oil and gas burner matched to the boiler for clean combustion and high efficiency up to AFUE 87%+
• Easy handling through delivery of the boiler block in sections
• Optional assembly of the boiler block at the factory
• Easy installation of third party burners with the aid of predrilled burner plates
• Outputs of 818, 1,009, 1,200, 1,391, 1,582, 1,773 MBH

The G615 has a full 4” of thermal insulation for minimal standby heat losses and a 6” supply manifold with NPT control tappings. Both gas or oil-fired. This cast iron boiler builds its reputation on its exceptional flexibility. Retrofitting is as easy as can be – with relatively little effort, you can benefit from the highly effective technology with its attractive energy efficiency and clean combustion.

Features:

• Optimum operating savings through long service life
• Clean combustion through low combustion chamber loading
• Reliable operation without shunt pump and return temperature control through Thermostream technology
• Suitable for operation B5 Oil, natural gas, LPG
• Easy installation of third party burners with the aid of predrilled burner plates
• Ecostream low temperature boiler for oil or gas combustion with modulating boiler water temperature control without minimum return temperature
• Boiler design with Thermostream technology for reliable operation without shunt pump and return temperature control
• Water-cooled combustion chamber with low combustion chamber loading and hot gas routing in accordance with the three-pass principle
• Boiler suitable for operation with oil or gas
• High efficiency - Combustion efficiencies up to AFUE 87%+
• Easy handling through delivery of the boiler block in sections
• Optional assembly of the boiler block at the factory
• Easy installation of third party burners with the aid of predrilled burner plates
• Outputs of 1,951, 2,242, 2,532, 2,822, 3,112, 3,402, and 3,982 MBH

• Available with either standing pilot or electronic ignition
• Designed as a replacement to almost any make or model boiler
  
• Compatible with Natural Gas or Propane

• Efficiency ratings of 84.3%
  
• High efficiency atmospheric gas boiler
• Available in a variety of sizes ranging from 53,000 BTU/Hr to 96,000 BTU/Hr

• Sealed combustion and draft induced venting design
• Perfect for single or multi-family homes
• Efficiency ratings of 85%+

• Whisper quiet operation with integrated draft inducer
  
• Designed to resist thermal shock for long life
• Front accessible controls

• Full 3½" of thermal insulation for minimal standby heat losses
• Offers low emissions with Premixed Burner Technology
• Durable, quiet and efficient

• Atmospheric gas boilers
• Perfect for large residential and/or light commercial applications
• Full 3½" of thermal insulation for minimal standby heat losses
• Offers low emissions with Premixed Burner Technology
• Durable, quiet and efficient
• Stainless steel premixed burners
• Low emissions with Premixed Burner Technology
• Factory tested for natural gas operation
• All models easily convert to propane
• Complete burner tray is easily removed
• Durable, quiet, efficient and designed for long life