
Serving Blackstone, MA and surrounding areas
Approved (Corporate)
In business since 1989
Free estimates
Emergency services offered
"Great. Technician John Gulstrom. He was able to replace part and check system quickly. Went very well."





+6


Serving Blackstone, MA and surrounding areas
Approved (Corporate)
In business since 1989
Free estimates
Emergency services offered
"Great. Technician John Gulstrom. He was able to replace part and check system quickly. Went very well."





+6

Serving Blackstone, MA and surrounding areas
Approved (Corporate)
Super Service Award Winner
In business since 1948
Free estimates
Emergency services offered
"Gil, RAF and Luis installed a new Lenox furnace/AC in my condo yesterday. They were here on time, worked quickly and were done earlier than I expected. All my interactions with them were informative and friendly and at the conclusion of the installation they took the time to show me, and explain to me what they had done. The new thermostat is a bit of a challenge, but they got me started in the setup process so that I could complete it. Before they left they thoroughly cleaned the areas they had worked in and traveled through. You will be very fortunate if you get this crew to install your new furnace."





+62

Serving Blackstone, MA and surrounding areas
Approved
In business since 2005
Free estimates
Warranties offered
"Our furnace wasn't working on the first cold night of the season. G&C came through for me the next morning. They came out that day and found the problem quickly, got it running again, and were professional and friendly throughout. Really appreciated the quick response and great service."





+6

Serving Blackstone, MA and surrounding areas
Approved
In business since 2015
Warranties offered
Small jobs welcome
"I had a great experience. Technician was able to diagnose and fix the issue. He also answered all my queries for a possible HVAC replacement for a heat pump. I would highly recommend."


Serving Blackstone, MA and surrounding areas
Approved
Super Service Award Winner
In business since 1999
Free estimates
Emergency services offered
"I used Angi's to get bids for installing a 4-head mini-split system while undergoing a kitchen remodel. Thankfully, Angi's was a reliable referral source, and I got 6 companies bidding. Cassana wasn't the cheapest, but Phillip, the owner struck me as earnest and reliable. He made several recommendations for my house's set up, and his crew was diligent and professional. Within 3-1/2 days, I was up and running. He was great to deal with, professional, and let me know of a previously unknown incentive rebate that save me some $3,000 on the job! No worries, and a great company to dela with--I liked them much better than some of the 'big firms' with high overhead and pressured sales practices."





+9

Serving Blackstone, MA and surrounding areas
Approved
Super Service Award Winner
In business since 2005
Credit card accepted
Customers say: True professional
"David and his crew were more than amazing if I could give them 10 stars I would. David came took pictures and measurements and got the furnace that day they came 3 days early so I could have heat. They were on time very friendly and knowledgeable about what they were doing. Start to finish they were done in 4 hours. They cleaned up any mess they made and removed the old furnace I can’t say enough good about David and his crew like I said 10 Stars ⭐️"





+21

Serving Blackstone, MA and surrounding areas
Approved
In business since 2009
Free estimates
Credit card accepted
"SumZero Energy Systems have been excellent in the last several months with supporting the replacement of my air conditioning system in my old condo as well as servicing my furnace. A price comparison with other local companies also prooved SumZero Energy Systems offered the best price. When I purchased a home a few months later, I called them to take a look at my air conditioning system and furnace because I felt as though they had provided such excellent service in the past. It was a no-brainer to ask for consultation regarding the heating and cooling systems in my new home! When I contacted them for assistance or consultation, they are usually quick to respond and provide appointment times had a very convenient window! They have shown up on time to all of the appointments I have had. David S. has always taken the time to explain everything thoroughly and answer all my questions. I highly recommend SumZero Energy Systems!"





+9

Serving Blackstone, MA and surrounding areas
Approved
Super Service Award Winner
In business since 2008
Emergency services offered
Warranties offered
"Installed central heat pump system on time with no issues. Technicians were professional and did a great job. Great communications from proposal through installation phases of project. Highly recommended."





+50

Serving Blackstone, MA and surrounding areas
Approved
In business since 2022
Free estimates
Emergency services offered
"Al and Jamie were flexible, fair and diligent in their work. They clearly explained the choices that we could make for a whole home heat pump system and why they recommended a particular approach over others. Overall we're very happy with the system and the service that we received."



Serving Blackstone, MA and surrounding areas
Approved
In business since 2020
Free estimates
Warranties offered
"I discovered Invicta HVAC on the mass save website. From the first contact, they were communicative and very attentive to my project. Extremely perfectionists did a beautiful job. I used to have an oil furnace as the only heat source and now we have a brand new heat pump with electric backup heat. Everything working fine. I would definitely hire them again and recommend them to everyone. thank you Guys!!"





+1
Converting from an oil furnace to an electric furnace isn't a simple swap—the oil system needs to be completely removed before installing the electric furnace. You'll need a full electric system installation, but you might be able to reuse existing ductwork if it's up to current safety standards. You’ll need to budget for a new electric furnace installation, which costs between $1,800 and $6,200, including professional removal, proper disposal, and safe installation of the new system.
Electric furnaces are 100% efficient at converting electricity into heat. However, some of that heat can be lost as it travels through your home's ductwork or escapes through poorly insulated areas. That's why regular duct maintenance and proper home insulation are important to maximize your furnace's efficiency and reduce heat loss, ensuring consistent warmth and lower energy costs.
With proper maintenance, an electric furnace can last anywhere from 20 to 30 years, outlasting the average gas furnace's lifespan of 15 to 20 years. To keep your electric furnace running efficiently, schedule regular cleanings, tighten connections, and have inspections done before winter arrives. With routine maintenance, you’ll ensure consistent, safe heating for years to come.
The size of the electric furnace you need depends on factors like your home's square footage, climate, and insulation quality. As a general guideline, those who live in warmer climates should multiply their square footage by 30 to 35 BTUs, while those in cooler areas should multiply it by 50 to 60 BTUs.
Consulting with an HVAC professional can help you determine the exact size that's right for your home.
An electric furnace works by converting electricity into heat using high-resistance heating elements. A blower then pushes the warm air through your home's ductwork, distributing heat evenly throughout your space. Since there's no combustion involved, electric furnaces eliminate the risks associated with gas furnaces and provide consistent, reliable heating when properly installed.
An electric furnace uses between 40 and 80 kilowatts per day to heat your home. The exact amount it uses depends on factors like your home's size, insulation, and overall energy requirements. Larger homes or those with poor insulation use more energy than smaller, well-insulated spaces. A professional furnace assessment can help confirm the ideal unit size for your needs.
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