The problem: Replacing an existing gas furnace with a new, more efficient furnace. The apprentice: Allen Charles Edwards (ACE) — First-year mechanic. The technician: N. Arthur Thomas Egan (NATE) — ...
The design of gas vent pipes and connectors for furnaces, water heaters, boilers, and other fossil-fuel appliances is a serious matter. Carbon monoxide poisoning, collapsing chimneys, fire hazards, ...
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