The world is changing, at Neil Williams and Sons we have the resources and ability to create the most environmental friendly homes. With geothermal technology beginning to play a part of this. We have recently finished a project which comprises of Geothermal floor heating to allow for a constant 21 degree warmth to the home, in conjunction with Double Glazed Low E Self cleaning glass, 5KW Solar Panel Power, and water tanks the home takes care of its self.


  • Energy savings
  • Environmental savings
  • Protection from energy cost increases
  • Reliable, low maintenance, long life
  • Versatile and works anywhere
  • Quiet
  • Efficient
  • Comfort
  • Third-party verification

Safe and Renewable Energy

Because there is no fossil fuel firing required by the Direct Energy system, there is no risk of fuel leaks, explosion, fumes or asphyxiation. Geothermal energy is a safe and renewable form of energy.

The Direct Energy heat pumps are located in a single cabinet that contains the high efficiency scroll compressor, the refrigerant-to-water heat exchanger and a small, quiet and dependable water circulating pump. Typical cabinet sizes fit within 700mm x 700mm x 700mm, which is the size of a two drawer file cabinet. It can be located adjacent to the traditional water heater tank.

Water Earth Loop Installation

High Density PolyEthylene (HDPE) earth loops are employed to suit the application. For heating, 30m of earth loop can yield at least 3.5kWth of heat pump capacity is needed, and a three inch (75mm) diamater bore hole is optimal.

The system is easily adapted to retrofit applications and new construction. The earth loops can be installed vertically, diagonally, or horizontally by trenching, drilling, excavation or directional boring even under a parking lot.


The system is designed for dependability and ease of service. It includes industry-standard threaded water piping connections, pump unions, and refrigerant service valves. In addition to the refrigerant management controls, the key internal components include a high efficiency, brazed plate heat exchanger and a readily accessible bronze body water circulating pump.