The Buderus GC144/3 (Bosch) is a cast iron, atmospheric gas boiler for hot water heating systems, rated at 74,000 Btu/h input on natural gas. Bosch describes the GC144 series as a compact boiler with side piping for easier retrofit installation.
Key features
- Silicone-injected cast iron sections (Buderus GL-180M) for resistance to corrosion and thermal shock
- Factory-tested stainless steel premix burner
- 85% AFUE (GC144 series rating)
- Natural gas, convertible to propane with the Buderus propane conversion
- Ignition module and adjustable boiler temperature controller
Specifications
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Brand: Buderus (Bosch)
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Manufacturer part number: GC144/3 (boiler size 18/3)
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Fuel: Natural gas
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Input: 74,000 Btu/h
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Supply / return: 1-1/4 in.
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Gas connection: 1/2 in.
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Vent connection: 5 in.
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Water volume: 2.4 US gal
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Width: 13-1/8 in.
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Dry weight: 228 lb
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Maximum boiler temperature: 220°F
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Maximum operating pressure: 58 psi
What's included
- Boiler, complete
- Vent damper
- Circulator
- Trim kit: 1-1/4 in. supply manifold, 30 psi relief valve, 3/4 in. long shank boiler drain, pressure/temperature gauge, elbows and nipples
- Cleaning brush and technical documents
Gas, venting, water and electrical connections must be made by a licensed installer following the manufacturer's manual and local code.