The HelioPower® concept completely architecturally integrate solar heating into a long lasting quarried slate roof. Its reliable as a conventional home heating system, but without the Solar Cell complexities of regulatory issues permitting or interconnection into the power grid. Our system fulfil the vision from The Department of Mineral & Energy of increased awareness of solar thermal energy and to bring this clean and free power into each building's energy equation at highly competitive rates. HelioPower system for quarry slate roofs occupies no extra space as its "hidden" inside the roof construction materials creating the "invisible solar collector".