Buderus Boilers and Heating Products
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Buderus has been in business since 1731! ductless.ca, Inc. offers many products from Buderus including Water Boilers, Wall-Hung Water Heaters, Panel Radiators and Towel Warmers. Buderus boilers are also available with advanced computerized control systems for added efficiency and comfort.
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Buderus Boilers
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The GA124 series residential cast iron gas boilers are highly efficient, have excellent construction quality and provide sealed combustion for tight installation spaces where no combustion air is available. The GA124 is available in natural gas or propane fired options.
| GA124 Series |
GA124/17 |
GA124/23 |
GA124/30 |
| Input (Btu/hr) |
70,000 |
94,000 |
123,000 |
| Heating Capacity (Btu/h) |
59,000 |
79,000 |
104,000 |
| NET IBR Rating (Btu/hr) |
51,000 |
69,000 |
90,000 |
| AFUE |
85.2% |
85.1% |
85.0% |
| Dry Weight (lbs) |
224 |
280 |
332 |
| Water Content (gal.) |
2.5 |
3.0 |
3.5 |
| Number of Burners |
2 |
3 |
4 |
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The GA124X series residential cast iron gas boilers have two ignition options; intermittent ignition and standing pilot. The GA124X also include two venting options; atmospheric venting with vent damper or sidewall venting with draft inducer. The GA124X series is compatible with natural gas installations.
| GA124X Series |
Intermittent Ignition G124X II/DI Models |
| GA124X/18 |
GA124X/25 |
GA124X/32 |
| Input (Btu/hr) |
74,000 |
103,000 |
132,500 |
| Heating Capacity (Btu/h) |
61,400 |
85,500 |
110,000 |
| AFUE (II Models) |
84.3% |
84.2% |
84.6% |
| AFUE (DI Models) |
85% |
85% |
85% |
| Dry Weight (lbs) |
224 |
280 |
332 |
| Water Content (gal.) |
2.5 |
3.0 |
3.5 |
| Number of Burners |
2 |
3 |
4 |
| GA124X Series |
Standing Pilot G124X SP/DP Models |
| GA124X/18 |
GA124X/25 |
GA124X/32 |
| Input (Btu/hr) |
74,000 |
103,000 |
132,500 |
| Heating Capacity (Btu/h) |
61,400 |
85,500 |
110,000 |
| AFUE (II Models) |
81.5% |
81.5% |
81.5% |
| AFUE (DI Models) |
81.5 % |
81.5% |
81.5% |
| Dry Weight (lbs) |
224 |
280 |
332 |
| Water Content (gal.) |
2.5 |
3.0 |
3.5 |
| Number of Burners |
2 |
3 |
4 |
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The G234X series atmospheric cast iron boilers are attractive and feature a compact design suitable for closet installations. The G234X series are compatible with natural gas installations.
| G234X Series |
G234X/38 |
G234X/45 |
G234X/55 |
G234X/64 |
| Input (Btu/hr) |
160,000 |
187,000 |
228,000 |
266,000 |
| Heating Capacity (Btu/h) |
130,000 |
154,000 |
188,000 |
219,000 |
| NET IBR Rating (Btu/hr) |
113,000 |
134,000 |
163,000 |
190,000 |
| AFUE |
84.3% |
84.1% |
84.8% |
84.3% |
| Dry Weight (lbs) |
487 |
487 |
562 |
684 |
| Water Content (gal.) |
6.1 |
6.1 |
7.1 |
8.2 |
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The GA244 series residential and light commercial cast iron boilers include a induced draft design for sealed combustion resulting in whisper quiet operation. The GA244 has low emissions and is packaged in a highly attractive design.
| G244 Series |
GA244/37 |
GA244/44 |
GA244/53 |
GA244/63 |
| Input (Btu/hr) |
156,000 |
182,000 |
220,000 |
262,000 |
| Heating Capacity (Btu/h) |
128,000 |
148,000 |
181,000 |
212,000 |
| NET IBR Rating (Btu/hr) |
111,000 |
129,000 |
156,000 |
181,000 |
| AFUE |
85% |
85% |
85% |
85% |
| Dry Weight (lbs) |
635 |
635 |
712 |
834 |
| Water Content (gal.) |
6.1 |
6.1 |
7.1 |
8.2 |
| Number of Burners |
4 |
4 |
5 |
6 |
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The GB142 series wall-hung boilers are ultra efficient and whisper quiet. The GB142 have direct vent or sealed combustion options and can be either natural gas or liquid propane fired.
| GB142 Series |
GB142/24 |
GB142/30 |
GB142/45 |
GB142/60 |
| Input (Btu/hr) |
84,800 |
106,000 |
260,900 |
198,800 |
| Heating Capacity (Btu/h) |
83,300 |
102,400 |
158,000 |
196,600 |
| Efficiency |
98% |
97% |
98% |
99% |
| Dry Weight (lbs) |
110 |
110 |
143 |
158 |
| Water Content (gal.) |
0.65 |
0.65 |
0.93 |
1.2 |
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Buderus Water Storage Tanks
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The S120 indirect fired hot water storage tank has a 32 gallon storage capacity and includes a high capacity, low pressure drop heat exchanger for excellent recovery. The S120 includes a standard Honeywell aquastat thermostat and adapts readily to Buderus Logamatic controls.
| Boiler Output (Btu/h) |
1st Hour
(90°F Rise) |
1st Hour
(70°F Rise) |
Continuous
(90°F) |
Continuous
(70°F) |
| 40,000 |
83 |
98 |
53 |
68 |
| 60,000 |
110 |
133 |
80 |
103 |
| 80,000 |
137 |
167 |
107 |
137 |
| 100,000 |
163 |
200 |
133 |
171 |
| 116,000 |
185 |
249 |
155 |
219 |
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Buderus indirect fired storage water heaters are thermoglaze® insulated for excellent corrosion protection. Buderus water storage tanks are available in either vertical configurations (ST series) or horizontal configurations (L series) which are designed for use with Buderus G-124 and G-124X series boilers.
| Model |
Water Content (gal.) |
Continuous Rating (2nd Hour) (Btu/hr) |
Water Flow Rate (gal/min) |
Weight (lbs) |
| ST150 |
40 |
119,000 |
15.9 |
238 |
| ST-200 |
53 |
149,000 |
17.6 |
286 |
| ST-300 |
79 |
218,000 |
22.0 |
371 |
| ST-400 |
103 |
194,000 |
26.4 |
407 |
| ST-500 |
129 |
235,000 |
24.2 |
486 |
| L-160 |
42 |
93,000 |
15.4 |
220 |
| L-200 |
53 |
109,000 |
17.6 |
246 |
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Warranty
~ 5 Years Parts
~ Limited Lifetime Heat Exchanger
~ 5 Years Labour through ductless.ca Inc.
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