Since I made a slightly different version of the pipe than some others, I thought I’d follow up with a report on the temperature inside the pipe.
My original post with how I built it is here: Hot Callus Pipe DIY - #145 by zendog
The pipe is now in a crawl space that is averaging around 57 degrees. Inside the pipe, the temperature appears to be averaging about 20 degrees warmer. The hottest I’ve seen it was 79 and the lowest was 75. I also have the slits quite close and about 60 grafts along the pipe, so possibly just more heat is escaping. I’m not sure if this will be hot enough for the pecans, but I’m hoping it is at least hot enough for the persimmons. If anything I wish I had made sure the slits were all the way down to the square wood dowels I used around the cable, so I’d know the grafts were right above the cable. I guess I’ll know in about a month.
