Main Office

Green Mountain Power 163 Acorn Lane Colchester, VT 05446 1-888-835-4672

Office hours Mon to Fri, 8 a.m. – 5 p.m.
We are closed on major holidays, the day after Thanksgiving and Christmas Eve

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Click on the “Log in” button to your right to access all of your account information. To register your account, you will need a username, password, email address, and account number and password. To log in, you just need your username and password.

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Water Heater Rental GMP

As a GMP customer, you may want to consider renting rather than purchasing a water heater. We rent state-of-the-art, 92-94 % energy-efficient Marathon Water Heaters to fit your budget and your household needs.

We fully back our rental water heaters, both during emergencies and for routine repairs. Our authorized plumbers are available to you 24/7 for emergencies, and free of charge for parts and labor.

The first step is to determine what size water heater you need. We will install it free of charge. After that, you pay as little as $10.50 per month (Some restrictions may apply).

Size (gallons) Dimensions (inches)
40 65 x 22
50 66 3/4 x 24 1/2
50 short 47 1/4 x 29 1/4
75 62 5/8 x 29 1/4
85 70 x 28 1/4
105 70 3/4 x 31 1/4

For more information about Marathon Water Heaters, go to www.marathonheaters.com. For purchase or rental prices or more information, call us toll-free at 1-888-835-4672, or e-mail us at callcenter@greenmountainpower.com.