An apparatus for solar heating of a pool may comprise a floating member, a water heater chamber (WHC) attached to the floating member, and one or more first tubes penetrating into the WHC to allow water from the pool enter the WHC. The floating member may be operable to make the WHC floatable. The apparatus may also include one or more exit ports to allow heated water from the floatable WHC to enter the pool. The floatable WHC may utilize incident solar energy to heat up water. Water may continue to flow into the floatable WHC from the pool due to convection current.