This past fall I built a rack. If I built another, I would change some things, but overall I like it alot. All 3/4 ply, and screws. No other parts, except the Heat!
Last winter I purchased a Spyder Robotics Temp controller (whats the correct term?) that allows you to set a temp., which is regulated using a thermometer probe. I got some 4in. flexwatt that I put vertically down the back. The width of the back wall is 4 ft., which is wide enough for small/med (Qt?) sterilites (holding 07's). There are 6 shelfs, so I distanced the two strips of flexwatt and ran them parallel to eachother, vertically down the back wall. This keeps approx. the back 1/3 of the back at higher temps, but to keep these high temps I have to set the spider near 100. I think I would like to instead zigzag some flexwatt , left (L) > right (R).. Down R side wall... R > L... down L side wall ... L > R... down R side wall... etc.... which would provide belly heat rather than heat that spreads off the back wall from back to front.
This belly heat system may be more efficient, but negatively> heard stories of spiking temp mishaps. If I stick with the back wall method I will purchase 11 in., and just one run strip right down the middle of the back wall.
Questions:
*** Any reactions to the back wall heat vs belly heat methods?
*** What size flex what would you get to provide corn snakes belly heat? 3in. or 4in.?
*** Ive seen automatic thermometers (electronic/digital) that give instant temperature readings. What brand/model would you suggest?
thanks for reading.