The initial credit for the design goes to Zoeller. I lined mine with Kao wool and even used a slurry. Couldn't get the temperature of heat I wanted, so I ripped out the Kaowool and slurry and started over again. Knew that the basic design was sound, but still trying to get a few more btu's out of this small unit. One night, while day dreaming, it came to me. I put in reflective panels on the interior (over the kaowool) which now reflects the heat from the propane "tunnel" to the panel which reflects the heat to the other side (which also has a reflective panel). Results? What used to take 35 minutes to reach non-magnetic stage (01 steel)now takes a brief 20 minutes. What's the reflective panel you ask?--stainless steel (real thin stuff). Where did I get it? got it from a true value hardware store-bought three cheap spatulas (made in china)-cost=$10.00. How did I attach it? drilled two holes in the wall and used a bolt to bring it tight to the curved kao wool lined wall. (remember--this is a 8" length of schedule 10 ^' pipe).
Most everybody has the more expensive electronic heat ovens or the furrier forges, this one works fine for up to 6 1/2" blades. Just thought I'd mention it if someone else has the same type and is looking for a tweak!--Dan
Most everybody has the more expensive electronic heat ovens or the furrier forges, this one works fine for up to 6 1/2" blades. Just thought I'd mention it if someone else has the same type and is looking for a tweak!--Dan
