I am just finishing up my new rack and I want to order my heat tape ASAP but could use a little advice... First, I should describe the rack. Its 6' tall, 4' wide, and 2' deep. VERY similar to the racks built by Halfdawg/Denegerous except it holds 10 rows of tubs instead of 6 (not a bad deal for only making it 2' higher and only ~$30 more in materials ). I was going to do 3" or 4" belly heat but I calculated that I would need 40' of heat tape plus all of the connectors to do it that way which will easily cost way over $100. Would it be ok to run 3 strips up the back instead? 11"? That would mean only 18' is needed which will cut the cost in half. BTW, this rack is HEAVY! Over 320 lbs!!!