I will be building my rack very soon and it will be in a book shelf style with 4 32 quart tubs on each level. The flexwatt will be connected to a Helix.

my question is could you cut 11" flexwatt in half? lengthwise not widthwise? Because i think that 11" would be covering too much of the tubs and i could use 5" and 6" strips to heat up each row.


If not then do you think the 4" flexwatt would be sufficent for each row of tubs?