Winslow Pump & Well, Inc. specializes in vertical, closed loop, geothermal loop fields.  The loop field consists of two major components: vertical geothermal wells and a horizontal manifold system.

The vertical geothermal wells are constructed by drilling a 200' vertical hole 4" to 5" in diameter, inserting two 3/4" polyethylene pipes joined at the bottom with a "U" bend fitting, and the annular space backfilled with Bentonite (clay) slurry to seal the polyethylene pipe in place.  The Bentonite slurry allows heat transfer while protecting ground water from surface contamination.

The horizontal manifold is a series of polyethylene pipe and tee fittings that connect the vertical wells to the geothermal unit located inside the home.  The manifold typically has 1-1/4" supply and return lines to the unit.

The system is filled with a water-based fluid, pressurized and sealed.  The fluid is circulated through the system, and the geothermal unit, to transfer heat, going to and from the ground as needed.

Inground construction: To prevent leaks in the vertical and horizontal system, the pipe and fittings are locked together by a method of welding called "Heat Fusion."

Special tools and equipment are used in the heat fusion process.  This process melts and joins the polyethylene pipe and fittings together at a temperature of 525°F.  The inground system is pressurized and leak tested before backfilling the trenches. 

Because of the high degree of reliability, many systems have been installed under asphalt parking lots and driveways.

Ground Source Heat Pumps (GSHPs) offer great benefits:

• Can be a combination heating/cooling and hot water heating system
• Some can save you up to 50% on your water-heating bill by preheating tank water
• Made of mechanical components that are either buried in the ground or located inside the home
• About the same size as a traditional heating/cooling unit
• Pipe carries up to a 50-year warranty
• Can cut energy consumption by 20 to 50% and reduce maintenance costs
• Keep the air warmer in the winter (90 -105¡ F) and at a more consistent temperature throughout the home, eliminating the hot and cold spots common with other systems
• Very quiet, providing a pleasant environment inside & outside the home
• No noisy fan units to disturb outdoor activities
• No exposed equipment outdoors; children or pets cannot injure themselves or damage exterior units
• No open flame, flammable fuel or potentially dangerous fuel storage tanks

Ground Source Heat Pumps offer great savings:

• One of the most efficient residential heating and cooling systems available today
• Heating efficiencies 50 to 70% higher than other heating systems and cooling efficiencies 20 to 40% higher than available air conditioners
• Save money in operating and maintenance costs
• Investments recouped in only a few years
• Positive cash flow; energy savings usually exceed the cost of the system
• Some utilities offer rebates or incentives to their customers who purchase GSHPs.
• Many heat pump manufacturers, local utilities, and lending institutions have special financing for homeowners who are installing GSHPs

Ground Source Heat Pumps are environmentally friendly:

• Conserve natural resources by providing efficient climate control and thus lowering emissions
• Minimize ozone layer destruction by using sealed refrigeration systems, which seldom or never have to be recharged
• Use underground loops to transfer heat, with no external venting and no air pollution