Welcome To EfficiencyPlus - Your Source For Quality Geothermal Solutions

We offer state of the art direct exchange geothermal systems that are ideally suited for homeowners who are serious about saving on their heating and cooling costs. 

Benefits in your home

Energy savings                                       
Environmental savings                              
Protection from energy cost increases
Reliable, low maintenance, long life
Versatile and works anywhere
Third-party verifications

Great future for your family

With an EarthLinked® geothermal heating and cooling system installed in your home you invest in greater comfort and cleaner air for your family. Thanks to the system’s superior efficiency and innovative technology, you heat and cool air and water in your home without the risk of carbon monoxide and greenhouse gas emissions generated by fossil fuel heating. And it is quiet!

In harmony with nature and your financial goals

An EarthLinked® geothermal heat pump system allows you to save thousands of pounds a year in greenhouse gas emissions and reduce your heating costs up to 70%. Whether you live in an urban or rural community, EarthLinked allows you to hedge against soaring electricity prices, save money and improve your comfort.

Works anywhere

From Sidney-Australia, Sitka-Alaska, or Siauliai-Lithuania, EarthLinked is designed to work anywhere seamlessly, regardless of your climate conditions, always quietly delivering comfort, savings and the performance you desire in your home.

Mechanically simple and reliable

Because of its unique mechanical simplicity, our direct exchange geothermal heat pump system offers greater reliability, minimal maintenance and long useful life.

Small and convenient

EarthLinked® is the smallest geothermal heat pump and has the smallest earth loop footprint, making it convenient to install and easy to fit in your home and yard, no matter how constrained the space.

One system, many uses

Whether you live in an urban location or a remote area, you can use the same geothermal heat pump unit for heating and cooling of living space, domestic water or swimming pools. EarthLinked is the simple and convenient solution to create a comfortable home environment for your family and guests all year around.

Quiet comfort in your home

You can benefit from stable and comfortable temperatures all year long without the noise of typical air conditioners or heat pumps. During winter, you will experience warmth without the hot blasts of gas furnaces; when cooling, you will benefit from crisp, dehumidified air.

News and Events

Federal Geothermal Tax Credit
The American Recovery and Reinvestment Act of 2009, H.R.1 (the Stimulus Bill of 2009) that was signed by the President on February 17, 2009, contains long-term tax incentives to encourage the installation of geothermal heat pumps in residences. The new law, effective January 1, 2009, offers a one-time tax credit of 30% of the total investment for geothermal heat pump installations without the limit of $2,000 that was part of the law enacted in 2008.

It should be understood that a tax credit is generally more valuable than a tax deduction of the same magnitude because a tax credit reduces the tax obligation directly, while a deduction only reduces taxable income. Therefore the reduction in tax is only a fraction of the deduction.

While it is expected to take many months for the IRS to release the updated forms and instructions for filing to claim this credit, it is expected that the credit will be treated as a refundable credit, so they not only directly reduce the amount of tax payable, they could bring a taxpayer’s tax obligation into the negative.

A tax credit of 10% of the total investment is also available without a maximum credit limit for commercial installations.


Our company has been providing 
effective solutions to energy savings since 1985.
We are proud to be able to offer you what we believe is the finest geothermal system on the market.
EarthLinked® DX

                     Efficiencyplus Corporation                                                      Direct Exchange Geothermal Solutions
                    1-508-328-4735                                                                        High Efficiency Home and Commercial Solutions

Real Energy Savings

We do not make empty promises about energy savings, the EPA has stated that geothermal heat pumps provide savings of from 50% to 70% when compared to conventional heating and cooling technologies.

None of us can predict what electric and other utility rates will be in the future, but it is a safe bet that they will increase.

It does not matter if you are building a new home or simply wish to control the monthly heating and cooling costs in your current home, our small footprint EarthLinked® systems can provide the solution you need.

Combined with the new Federal Geothermal Tax Credit, owning a high efficiency geothermal system has never been a easier decision. 

Pick up the phone and call us and let's discuss how direct exchange geothermal heating and cooling can make a big difference in your life, saving you substantial amounts each month on your heating and cooling bills.

What You Do Matters   Good for Our Earth   Good for Your Checkbook
CLICK HERE FOR A REAL EXAMPLE OF SAVINGS - This is an ECR-EarthLinked System in Vermont