How Does Geothermal Work?
A geothermal heat pump is the greenest, most efficient, and most cost effective heating & cooling system available. That's because it uses the free renewable solar energy stored in your backyard rather than burning fossil fuels. But what's really impressive is the level of comfort it provides. Our systems operate for longer periods at lower speeds, making the home consistently comfortable all year round. You have to experience it to believe it. The ground is able to maintain temperature consistency because it absorbs 47% of the sun's heat as it hits the Earth's surface. WaterFurnace geothermal systems are able to tap into this free energy with a series of underground pipes called an earth loop. This technology is used to provide your home or office with access to an infinite energy source for heating, air conditioning, and hot water.
Geothermal Loop Systems
Horizontal Loops are
used where adequate land is available. They involve one or more trenches that are dug using a backhoe or chain trencher. High density polyethylene pipes are inserted, and the trenches are backfilled. A typical home requires 1/4 to 3/4 of an acre for the trenches.
An open loop is used where there is an abundant supply of quality well water. The well must have enough capacity to provide adequate flow for both domestic use and the WaterFurnace unit. 7 Series units require 3-10 GPM, depending on size.
If an adequately sized body of water is close to your home, a pond loop can be installed. A series of coiled, closed loops are sunk to the bottom of the body of water. A 1/2 acre, 8-foot-deep pond is usually sufficient for the average home.
Vertical loops are used when space is limited. Holes are bored using a drilling rig, and a pair of pipes with special u-bend fittings is inserted into the holes. A typical home requires three to five bores with about a 15-foot separation between the holes.