A panel and an electrical end connector, a method for coupling of panels and 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 including first and second longitudinal panel coupling means, respectively, arranged for coupling said panel to adjacent panels;
• first and second opposite end sides including first and second end panel coupling means, respectively, arranged for coupling said panel to adjacent panels;
• wherein
• said first and second end panel coupling means includes first and second end panel grooves, respectively, said first and second end panel grooves at least partly extending between said first and second opposite longitudinal sides, and
• at least one electrical end connector is arranged in one or more of said first and second end panel grooves of said first and second end panel coupling means, said at least one electrical end connector including first and second end portions and an at least partly resilient portion located between said first and second end portions, said at least partly resilient portion at least partly including an electrically conductive material and at least partly protruding from said one or more of said first and second end panel coupling means, thereby providing an electrical connection between said heat providing layer of said panel and a corresponding heat providing layer of at least one adjacent panel coupled to said panel.