Canada-wide gas boiler information · On-site service in Greater Vancouver, BC
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Comparison
Verdict in brief
Both the Buderus G515/240 and the Buderus G515/295 belong to the Bosch Thermotechnology Buderus G515 (Logano G515) line of non-condensing boilers. The Buderus G515/240 is rated 685.8–818.9 MBH output, and the Buderus G515/295 is rated 822.3–1006.6 MBH output. Buderus G515/295 lists 187.7 MBH more output than Buderus G515/240 (1006.6 MBH against 818.9 MBH). Buderus G515/295 lists 353 lb more shipping weight than Buderus G515/240 (3,153 lb against 2,800 lb).
Published manufacturer figures. Input and output are kept separate; blanks mean the manufacturer did not publish that value.
| Specification | Buderus G515/240 | Buderus G515/295 |
|---|---|---|
| Nominal output, lower value | 685.8 MBH | 822.3 MBH |
| Nominal output, upper value | 818.9 MBH | 1,006.6 MBH |
| Weight, net | 2,800 lb | 3,153 lb |
| Maximum permissible operating pressure | 87 psi | 87 psi |
| Fuels | Heating oil, liquid propane or natural gas | Heating oil, liquid propane or natural gas |
| Number of boiler sections | 7 | 8 |
| Combustion output, lower value | 735.7 MBH | 879.7 MBH |
| Combustion output, upper value | 886.1 MBH | 1,088.5 MBH |
| Boiler water content | 68.2 US gal | 77.7 US gal |
| Maximum permissible supply temperature | 248 °F | 248 °F |
Published ratings: the Buderus G515/240 is rated 685.8–818.9 MBH output; the Buderus G515/295 is rated 822.3–1006.6 MBH output. Buderus G515/295 lists 187.7 MBH more output than Buderus G515/240 (1006.6 MBH against 818.9 MBH).
Buderus G515/295 lists 353 lb more shipping weight than Buderus G515/240 (3,153 lb against 2,800 lb). The number of boiler sections differs: the Buderus G515/240 lists 7, while the Buderus G515/295 lists 8. The boiler water content differs: the Buderus G515/240 lists 68.2 US gal, while the Buderus G515/295 lists 77.7 US gal.
Both records print the same maximum operating pressure (87 psi), fuel (Heating oil, liquid propane or natural gas) and maximum permissible supply temperature (248 °F), per the cited sources.
Bosch Thermotechnology
The Buderus G515/240 is a discontinued commercial cast-iron boiler block with 7 sections and a nominal output range of 685.8-818.9 MBH for oil, gas or combination burners.
Bosch Thermotechnology
The Buderus G515/295 is a discontinued commercial cast-iron boiler block with 8 sections and a nominal output range of 822.3-1,006.6 MBH for oil, gas or combination burners.
The Buderus G515/295 lists 1006.6 MBH, against 818.9 MBH on the Buderus G515/240, per the cited documentation.
The Buderus G515/295 lists 1006.6 MBH, against 818.9 MBH on the Buderus G515/240.
It ships at 3,153 lb against 2,800 lb for the Buderus G515/240, per the cited sources.
A consultation includes a heat-loss review so the size is right the first time.
On-site service in Greater Vancouver, BC. ROMA lists “Open 7 days” on its site; call to confirm same-day availability.
Sources and verification
Facts checked September 9, 2026. Last updated September 9, 2026. Technical reviewer: not yet assigned.