Heat panel, a heating system and a method for installing such a heating system

A panel comprising:

• a base layer;
• a heat providing layer attached to said base layer, said heat being created by electric energy;
• a covering layer attached to said heat providing layer;
• first and second opposite longitudinal sides;
• first and second opposite end sides;
• and
• panel coupling means arranged for coupling said panel to adjacent panels;
• at least first and second longitudinal grooves arranged in said base layer from said first end side to said second end side and facing said heat providing layer, said at least first and second longitudinal grooves being arranged in parallel with, and having at least first and second distances to, said first and second longitudinal sides, respectively;
• and
• at least one first and at least one second electrical end connectors arranged in said at least first and second longitudinal grooves to protrude from at least one of said first and said second end sides, and arranged for being electrically connected to said heat providing layer, and for being at least partly resilient, thereby providing a connecting force Fcon being essentially perpendicular to said at least one of said first and said second end sides when said panel is coupled to at least one adjacent panel, and being directed towards at least one corresponding end connector of said at least one adjacent panel.