opposite first and second end portions 87 and 88 and steam or water is flown to the second region 26 through the end portion 87 condensate is then removed from the second region 26 through the second end portion 88 at the conical collector 81 apart from this illustrated preferred embodiment it is also within the broad contemplation of the subject invention that steam or vapor be flown to the second region 26 through either of the first and second end portions 87 and 88 similarly it is within the broad contemplation of the subject invention that vapor be flown to the second region 26 at a location between the first and second end portions 87 and 88 moreover it is within the broad contemplation of the subject invention that condensate be removed from the second region 26 through one of the first and second end portions 87 and 88 as long as the pipe 18 is oriented to render this physically possible while vapor is flown to the second region 26 at a location between the first and second end portion 87 and 88 moreover vapor may be flown to and condensate removed from the second region 26 through one of the first and second end portions 87 and 88 as long as the pipe 18 is oriented to render removal of condensate through the particular end portion 87 or 88 physically possible such modifications within the spirit and scope of the subject invention will now be described with the aid of.