I would like to start off by saying I've been a lurker for years now! Sitting idly by watching, observing and absorbing all the goodness that everyone shares here. Now I throw my hat into the ring by submitting details of my mockup I have and want to get some feedback before I commit and finish it off (buff paint off, weld all seams, paint etc) and put it into use. I am planning on using the exhaust as supplemental heat for a future greenhouse but was wondering if I should make it course through a radiant heat source like a mass bench to draw more heat out the end air before it goes out. I have attached a drawing, not to scale, of my heater. I thank you all ahead of time.
Cajunman