Very difficult to install for almost nothing ...

Then you must connect it to the battery, OK, I had the good idea to wait a few days before making a button hole, I tested, power 1, the heating is non-existent, power 2 on to the touch feels that it is warm, very far from 39 ° shown!

Roughly 3 hours of work at all for a very very low heat (basically it's like this someone had sat on it before) instead of the advertised 39 ° and 45-minute installation! To avoid