I will be building a rack in the near future. The only question I have is about heating. I am only familiar with undertank heaters and know that this is not a practical way to heat a rack. Basically I need to decide between heat tape or rope. Also was wondering if I need to put the heating elements in a dado (groove) so there is some space between the box and heating element or if it is better that they come in contact. Thanks in advance.

