Condensing Boilers
Highly-efficient condensing boilers from Bosch.
Highly-efficient condensing boilers from Bosch deliver reliable heating and hot water with high efficiency and low operating costs. Condensing boilers convert water vapor condensation into heat, recycling waste gas. This process allows these systems to deliver 95% energy efficiency on average, as well as use less fuel than traditional boilers. Bosch also offers combi condensing boilers, which provide hot water in addition to heating. All Bosch condensing boilers are small and lightweight, with wall-mounted and floor-mounted options for easy installation.
Boilers
Greenstar Boilers

Highly-efficient and reliable gas condensing boilers from Bosch.
- 95% AFUE efficiency
- Available in both heating-only and combi versions
- Insulated for ultra-quiet operation
- Compact wall-hung and floor-standing designs
Condensing Boilers
Buderus GB162

Long-lasting and highly-efficient.
- Compact, lightweight and highly-efficienct
- Ideal for large homes and light commercial applications
- Efficiency up to 93% AFUE
- Cascade up to 8 boilers and common vent up to 4
Boilers
Singular Combi Boilers

A singular solution for reliable heat & hot water.
- 95% AFUE efficiency
- Up to 7.7 gallons per minute of domestic hot water production
- Turndown ratio up to 10:1
- Built-in boiler circulator pump
Modular Condensing Boilers
Buderus Stainless Steel Boiler (SSB) Gen 2

A dependable condensing stainless steel commercial boiler, now featuring dual 441 stainless steel heat exchangers and other upgrades for enhanced performance.
- Dual 441 stainless steel heat exchangers for higher corrosion resistance
- 798 to 8192 MBH output range
- Flexible installation options with a small footprint
- Equipped with a circulator pump on each module
Modular Condensing Boilers
Buderus Stainless Steel Boiler (SSB) Gen 1

A stainless steel boiler built for commercial applications with output ranges from 800 to 8192 MBH
- Dual 316L stainless steel heat exchangers for increased capacity
- Flexible installation options with a small footprint
- Equipped with a multi-speed circulator pump on each module
- Superior non-prorated 10-year limited warranty for Heat Exchanger
It may be discontinued. Browse the Discontinued Products section.