Energy Unlimited partners with top manufacturers of natural gas heating boilers and furnaces.  We install top grade equipment from Trane, Bosch, Buderes and more.

Our partnership with Trane

Our 7 year partnership with Trane has allowed Energy Unlimited to become the leading installer of boilers, furnaces, heat pumps and air conditioners in central and north central Connecticut.  Our specially Trane trained technicians complete a rigorous course of study that allow them to tackle all challenges that arise during the course of installation and maintenance of your natural gas heating system.

Trane furnaces are innovatively designed with efficiency and precise temperature control in mind. Trane furnaces are reliable, quiet and guaranteed to make those cold winter months a little more enjoyable.

Bosch Thermotechnology and Buderus Cutting Edge Technology

Bosch offers a variety of boilers, tankless hot water heaters and heat pumps that can virtually outlast any other system on the market today.  The Bosch Greenstar Natural Gas Condensing Boiler line offers low operating cost units that deliver reliable performance with low emissions at the highest efficiency.

Home Owners using Buderus condensing boilers with Natural gas will save a significant amount of energy compared to conventional heating methods. Outstanding quality control and centuries of experience, Buderus produces boilers designed for excellent efficiency and long life.


Your natural gas heating equipment installation begins with a consultation and estimate. We will assess the location, make equipment recommendations based on your budget, performance, efficiency and finally leave you with next steps with regard to moving forward with your natural gas heat installation.


Your no obligation and no cost estimate will allow Energy Unlimited to view the location of the installation and make the correct equipment recommendations based on the size of the residence and other requirements. We will leave you with a detailed estimate and all your questions will be answered before we leave so you feel comfortable about the decision you are about to make.

Equipment Recommendations

There are different options to choose from and depending on requirements certain brands may be better suited for a specific installation. During the consultation and estimate we will review all the equipment options with you and make the best recommendation based on your budget and requirements for the best performance over the life of the equipment.


You will have many questions during the course of making the conversion from oil to natural gas heat. We are here to help answer them all. Whether you are just beginning and have not yet brought natural gas into your home but know you have natural gas on your block or are ready to convert to gas heat today, we can help with all your questions.


We will work with you to schedule a convenient time to complete installation. In most instances installation will be completed in one day and any follow up will work be communicated accordingly. We take care to protect your personal belongings and your personal security is of the utmost importance.

Service and Repair

Energy Unlimited provides annual service plans as well as maintenance and repair of all brands of furnaces, boilers, air conditioners, heat pumps and water heaters as well as all accompanying equipment. We handle all warranty repairs on EU installed equipment and your 100% satisfaction is our number one priority.

Financing Assistance

Energy Unlimited works with Energize CT to help support homeowners looking to finance their conversion. Once we provide an estimate you can apply for a loan through Capital for Change either by calling their 800 number or online. Interest rates are reasonable and decisions are made quickly so your installation can get underway.