Customer happiness is the greatest reward

March Madness Sale!!!

Double-Tax Discount on all new fireplaces, stoves and inserts PLUS a free accessory up to $200 in value!!!

Home of the 10 year warranty!!!


Sale Ends 3/31/18


Just mention this offer


Please visit us at our new, modern showroom at:

57 Florence Street, Marlborough MA.

Located just off Rt 20, 5 minutes from Rt 495 (Exit 24 - Marlborough)




Nothing brings family and friends together for the holidays in an atmosphere of warmth and charm than a blazing hearth. Our gas, wood, electric and pellet fireplaces provide high-efficiency heat and perfect ambiance. Come browse our fireplace collection and find the ideal match for your décor and budget.




Ductless mini-split systems are an ideal way of providing affordable and efficient heating and cooling in a wide variety of applications – older homes where installing ductwork is impossible, home additions that need single-room HVAC, livable garages, attics and basements, in-law wings – these and many more are perfect opportunities for ductless, mini-split installations.




New England winters can be harsh and brutal. No one wants to deal with no-heat issues when the snow is blowing and the wind is howling. We offer an unmatched variety of efficient and affordable boiler and furnace products that will provide the security of warmth and comfort throughout the frozen New England winter.



Get your Questions answered.

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Come and visit us!

We welcome your questions. Our staff is well trained to perform many services from installations and deliveries to consultation and estimates.



MONDAY thru WEDNESDAY   9:30 AM to  5 PM

THURSDAY                                    9:30 AM to  8 PM

FRIDAY & SATURDAY                 9:30 AM to  5 PM

 Energy Unlimited of New England INC

57 Florence Street in Marlborough, MA 01752

Located just off Rt 20

5 minutes from Rt 495 (Exit 24 - Marlborough)


TOLL FREE : 1-844-48-COTTI


TOLL FREE : 1-844-48-COTTI


TOLL FREE : 1-844-48-COTTI