| Air Heating |
| Roberts-Gordon |
| Combat Unit Heaters |
| Quality built axial fan tubular unit heaters. Rates from 30M BTU to 400M BTU. Direct spark ignition, remote fan operation for summer air circulation. Sealed combustion option and stainless steel heat exchanger option. |
| Combat Duct Furnaces |
| Quality built tubular duct furnaces. Rates from 75M BTU to 400M BTU. Direct spark ignition, remote fan operation for summer air circulation. Sealed combustion option and stainless steel heat exchanger option. |
| Combat Direct Fired Make-Up Air Units |
| Short Lead Times. 1,000-60,000 CFM at rates of 100M-6,480M BTU with 30:1 turndown.. |
| Combat Indirect Fired Make-Up Air Units |
| Short Lead Times. 3,500-57,000 CFM at rates of 240M-4,500M BTU. Three or four pass heat exchanger for maximum efficiency. |
| Combat Air Turnover Units |
| Short Lead Times. 4,500-100,000 CFM at rates of 240M-4,500M BTU. |
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