I spent alot of time on this project ,and it was'nt cheep to build. But I love It Click on img to inlarge it . Here is a picture of the Heat Chamber it has its own door. [/img] It has a false wall on both side walls the air is pulled down Through the bottom hatching trays and pushed out the vent holes in the walls you can see the opening for the false wall here, the pvc is the watering system, Ican fill the water trays form the outside I will be doing a home page with more pictures and building notes the wall panels and doors all have 1 1/2 styrofoam and I't run's for one min every 7 min , and maintains 99.1 - 100.1 . In the on off mode. When its in the porportional mode the air temp only verys .2 of a degree F. The 3 lighted switches control the int. upper light , the power to the herpastat, and the 2 egg tuners witch could be expanded to 4. they just plug into the four slot stainless outlet.