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G2 Gas Technician Module 21 Revised Questions with Verified Solutions
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G2 Gas Technician Module 21 Revised Questions with Verified Solutions What type of vent is used on a wall furnace? BW Venting What temperature does a low-intensity infrared heater fire at? where are they used? 1200 F and are used in factories and commercial buildings How does a low intensity infr...
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