The combustion air openings lead to the outdoors. This water heater is in a garage and they provided the openings. Should I tell them that the combustion air openings are misplaced......you know, commence within 12" blah blah blah. I didn't know that vent caps can come with built-in storm collars.Wonder why the door lock is backwards?
Are they pulling combustion are from the garage to the furnace room?
I seldom see aluminum wire. 166 amps requires 4/0 Aluminum conductor.? Isn't aluminum wire the normal thing for POCO feeders out your way?
Around here it's very rare to see copper feeders.I seldom see aluminum wire. 166 amps requires 4/0 Aluminum conductor.
300.34 Conductor Bending Radius. The conductor shall not be bent to a radius less than 8 times the overall diameter....4/0 wire is 5/8"....5/8" x 8 x2 = 10" diameter circle.