Smoking pipe

A smoking pipe comprising a pipe bowl and an elongated stem extending from the bowl, said stem having an outlet opening and a longitudinal smoke-conducting passage communicating between the bowl and the outlet opening, and a metal air injection pin in the stem, said pin having an outer portion embedded in the stem, an outer surface essentially flush with the outer surface of the stem, an inner portion extending into the smoke-conducting passage beyond an inner wall of the stem forming the smoke-conducting passage and terminating within the passage adjacent the longitudinal center thereof, and a central air passageway in the pin extending perpendicular to the longitudinal extent of the stem, the central passageway having a diameter small relative to that of the longitudinal smoke-conducting passage and the embedded outer portion of the pin having a significantly larger cross sectional area than the extending inner portion to conduct heat at a greater rate than the inner portion.