Bosch Thermotechnology · Buderus GA124 (Logano GA124)
Buderus GA124/23
The Buderus GA124/23 is a discontinued sealed-combustion cast-iron gas boiler rated 79 MBtu/hr output with a 240 lb empty weight and 2.9 US gal water volume.
Key figures
- Max input
- —
- Max CSA output
- —
- AFUE
- —
- Min input
- —
Input is gas energy consumed; output is heat delivered. Never size from input alone.
Buderus GA124/23 in practice
Best suited to
Applicability and support
- Model number
- GA124/23
- Canadian availability
- historical
- Production status
- discontinued
- ROMA supplies
- Confirmed at consultation
- ROMA services
- Confirmed at consultation
- Warranty
- Not verified
Where ROMA provides on-site service
On-site service is currently offered in Greater Vancouver, BC, including Vancouver, Burnaby, Richmond, Surrey, Coquitlam, North Vancouver, West Vancouver, New Westminster, Port Coquitlam, Port Moody, Delta, Langley, Maple Ridge, Abbotsford, Chilliwack, White Rock, Pitt Meadows, Tsawwassen, Anmore, Lions Bay, Belcarra, Bowen Island, Mission. Everything else on this site is reference information you can use anywhere in Canada.
Specifications
Published specifications
Values as published by Bosch Thermotechnology. Units are shown with every value; notes flag conflicting sources or missing figures.
| Specification | Value | Note |
|---|---|---|
| Output | ||
| Boiler output | 79 MBtu/hr | Per the installation manual dimensions table. |
| Venting and air | ||
| Flue gas connection | 3" | Sealed combustion with a 3" combustion-air connection and 3" flue connection. |
| Combustion air connection | 3" | |
| Physical and connections | ||
| Empty weight | 240 lb | |
| Water volume | 2.9 US gal | |
| Operating limits and other | ||
| Gas connection | 1/2" | |
| Boiler supply and return | 1" | |
| Fuel | Natural gas or propane | Propane conversion instructions served from the Canadian manual library. |
Manuals
- Logano GA124 Installation and Maintenance Instructions (6 720 804 890, 2012/10)6 720 804 890 · 2012-10
Alerts documented for this model
None documented yet.
Questions about the Buderus GA124/23?
Describe what the boiler is doing and get a straight answer about the next step.
On-site service in Greater Vancouver, BC. ROMA lists “Open 7 days” on its site; call to confirm same-day availability.
Sources and verification
- Bosch Home Comfort Canada — Gas Boiler Manuals (GA124) · accessed September 9, 2026
- Logano GA124 Installation and Maintenance Instructions (6 720 804 890) · accessed September 9, 2026
Facts checked September 9, 2026. Last updated September 9, 2026. Technical reviewer: not yet assigned.