Added: 11/19/2013

Kitchen with isle and cabinets

Heating system will be installed on top of concrete under ceramic tile floor. Isle is 76" long and is 32" wide on left side and 18" on the right side. Cabinets are 30" wide and thermostat location is by the entrance wall on top the sketch.
We used combination of (2) heating mats. Both mats are started right by the thermostat location. 54.9ft long heating mat starts with (3) rows of 53" long each, following with (3) long rows wall to wall, and finishing with (2) small 30" rows. 36.6ft long heating mat covers the rest of heating area around the isle.
HTMATKIT-240-60 and HTMAT-240-90 is the best fitted combination for this kitchen.