We invite you to visit any of our three locations to run profiles and gather DATA for yourself to see the strong advantages of the MK7 reflow oven for your production! Additionally, our proprietary Flux-Free Grill system limits the flux residue on the cooling grills giving the Heller reflow oven system the highest production yields of any oven! …22″ 2156 869 cm (342″) 17 5 Top (std) Bottom Cool / External Cool optional 22″ *The 1913, 1809 & 1707 Reflow Oven series have 10 inch wide heater modules for reduced liquidus time.