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Smart-E Gas Conversion Special Offer
Rates as low as 4.49% when you convert to Natural Gas!

If you are considering financing options for converting your home to natural gas and installing a high efficiency boiler or furnace, the Smart-E loan is the solution you need. With rates as low as 4.49% and terms up to 12 years, the Smart-E loan is a great way to save money and make your home more comfortable. Applying is as easy as child’s play, so don’t miss out on this opportunity to save today!

Additional Details

  1. Find a Contractor to discuss your energy improvements.
    If your contractor is not on the approved list, they should contact for Smart-E training.

    Using multiple contractors? Select one to act as your general contractor. They will help facilitate this process for you.
  2. Select your home energy upgrade.
    Your contractor will work with you to be sure the improvements meet our eligibility requirements. 
  3. Get pre-approved by a participating lender.
    Apply directly with your selected lender before your contractor begins the project.
  4. Close your loan with your lender.
    Your lender will reach out to schedule a loan closing once the project is approved.

Smart-E boyCT Green Bank has partnered with Energize CT and lenders in your community to offer long-term, low-interest financing for your smart energy upgrade. To learn more about what equipment qualfies, Click here.


Loan Term 5 7 10 12
Maximum Rate (varies by lender) 4.49% 4.99% 5.99% 6.99%


You're eligible if your residence is:

  • 1-4 units (condominiums must be individually metered)
  • Owner-occupied
  • Your primary residence and located in Connecticut
  • Mobile homes not eligible for Solar PV, Solar Hot Water and Geothermal.

You're project is eligible if you convert to natural gas and install:

  • High efficiency natural gas furnace – 95% AFUE
  • High efficiency natural gas hot water boiler – 90% AFUE


For questions regarding the Smart-E Loan Program, contact Connecticut Green Bank at (860) 563-0015 or


This is the first step to get started with Smart-E Loan. Choose from these local lenders covering all of Connecticut. Click to learn more about each institution’s service area, rates and special offers.  Apply today!

Capital For Change logo

CorePlus Credit Union logo

Eastern CT Savings Bank logo

Ion Bank logo

Mutual Security logo

Nutmeg State Financial Credit Union logo

Patriot Bank logo

Thomaston Savings Bank logo

Union Savings Bank logo

Learn how homeowners across Connecticut are improving their homes and lowering energy costs with Smart-E.

Smart-E Loans Myers

“What we’ve seen since we’ve converted is stability. The house is so much more comfortable now.”

– Myers family, natural gas conversion and heating equipment

About The Project

Location: Norwich, CT
Building Type: Ranch
Building Size: 1.428 sq ft
Year Built: 1960
Project: Converted to natural gas and upgraded to a high efficiency boiler
Total Project Cost: $8,318.09
Annual Energy Cost Savings: $1,200


Smart-E Loans Hemeon

 “Smart-E helps get you where you want to be, and where you want to be is self-sufficient with solar energy."

– Hemeon family, installed solar PV



About The Project

Location: Pomfret, CT
Building Type: Colonial
Building Size: 2,944 sq ft
Year Built: 1982
Project: 36 Solar Panels
Total Project Cost: $31,125
Estimated Annual Energy Cost Savings: $1,794
Estimated Solar Panel Energy Production:
9,763 kWh/year
Approximate Total Home Energy Usage:
11,835 kWh/year

Smart-E Loans Curran

“Applying for the loan was very easy; the application process was just a few pages; and the closing took no more than half an hour.”

– Curran family, installed solar PV

About The Project

Location: Waterbury, CT
Building Type: Split Ranch
Building Size: 2,600 sq ft
Year Built: 1979
Project: 26 Solar Panels
Total Project Cost: $35,000
Annual Energy Cost Savings: $1,353
Estimated Solar Panel Energy Production:
8,457 kWh/year
Approximate Total Home Energy Usage:
26,781 kWh/year

Smart-E Loans Kennedy

 “We are getting the most out of our money and it feels good to know that we are not over spending on energy.  We are excited about the improvements hold for our future.”

– Kennedy family, Conversion to Natural Gas, upgrade to a high efficiency boiler, asbestos remediation

About The Project

Location: Berlin, CT
Building Type: Dutch Colonial
Building Size: 3,698 sq ft
Year Built: 1800
Project: Conversion to Natural Gas, upgrade to a high efficiency boiler, asbestos remediation
Total Project Cost: $12,934.88
Estimated Annual Energy Cost Savings: $1,800

Smart-E Loans Watson

 “We were in the black from day one. As it turns out, the cost of the loan payment is less than what we’re saving in heating costs. Eventually, when the loan is paid off, it will be all profit."

– Jeff and Liliya Watson, switched to natural gas

About The Project

Location: Hamden, CT
Building Type: Ranch
Building Size: 1,589 sq ft
Year Built: 1956
Project: Conversion to Propane/ Natural Gas, upgrade to a high efficiency boiler
Total Project Cost: $11,750
Estimated Annual Energy Cost Savings: $1,200