NM CID MM-2 Practice Questions - New Mexico CID MM-2 Natural Gas Fitting Examination Exam

It is a non-positive, non-condensing vent that may be ordinary Type B It operates with positive vent pressure and condensing flue gases and requires a listed special venting system, not a Type B gas vent It may always be common-vented with a draft-hood water heater It must terminate in an unlined masonry chimney