Serving Great Lakes, IL and surrounding areas
Approved
Super Service Award Winner
Free estimates
Emergency services offered
Warranties offered
"Dwayne from G & R Heating & Air did a very thorough job checking our AC system. He verified everything was in good working order. Dwayne was professional, courteous and friendly. I ended up purchasing the service contract."
+20
Serving Great Lakes, IL and surrounding areas
Approved
In business since 1973
Free estimates
Emergency services offered
"They did fine. They were on time. The guy who came out was professional. They did not leave a mess. They cleaned up well. The furnace seems to be fine."
+7
Serving Great Lakes, IL and surrounding areas
Approved (Corporate)
In business since 1971
Free estimates
Emergency services offered
"We decided to replace an outdated AC unit and furnace with a brand new heat pump and furnace. After speaking with a Four Seasons sales rep, we knew they were the best choice to go with due to their thorough assessment, knowledge of products, availability of service and overall transparency. And perhaps most importantly, they were not pushy and respect our decisions on what system we felt was best for our home. As with any expenditure of this nature, there will be some ironing out of details and inevitable bumps to get everything completed, but the overall experience amounted to an energy-efficient HVAC system that was installed with care and expediency. Their service technicians are also friendly, thorough, knowledgeable, and available at a moment's notice. We are so glad that we went with Four Seasons."
Serving Great Lakes, IL and surrounding areas
Approved
In business since 1998
Free estimates
Emergency services offered
"I hired them to install new combined water heater/ boiler, install new water filtration system and service the ac units.Great service and knowledgeable of what theyâ re doing. Definitely will hire them again."
Serving Great Lakes, IL and surrounding areas
Approved
Super Service Award Winner
In business since 2018
Free estimates
Emergency services offered
"The technician pro that arrived was friendly, assessed the problem, checked for parts and got our furnace up and running under 30-minutes time. I would definitely refer ThermaTek Heating and Air to my family and friends. Great experience!"
+16
Serving Great Lakes, IL and surrounding areas
Approved
In business since 2011
Free estimates
Emergency services offered
"Rick came to my home and gave us a proposal to remove and replace our old furnace and electric water heater. His cost was more than fair. Craig came early on the scheduled day. In no time he had the old equipment removed. The new equipment installations were all completed the same day. My experiance with C.R. Mechanical Services was better than expected. Rick and Craig were both friendly and professional through-out the whole project. I will highly recommend them for anyone in need of a HVAC contractor."
+8
Serving Great Lakes, IL and surrounding areas
Approved
In business since 2018
Free estimates
Emergency services offered
"Friendly reliable owners and staff. Work was completed when scheduled and professionally. New AC was installed with furnace. Since it was cold out, I was assured They will check outside condenser unit in the spring. Comforting to work with a good company."
+21
Serving Great Lakes, IL and surrounding areas
Approved
In business since 2012
Free estimates
Emergency services offered
"Maintenance and checkup on my furnace. Needed someome fast as I am about to rent out the house. Easy to schedule and price was fair. Would use again."
+4
Serving Great Lakes, IL and surrounding areas
Approved
Super Service Award Winner
In business since 2014
Free estimates
Emergency services offered
"Replaced our furnace. Mike installed and we had heat in a about 4 hours. Hauled away old furnace and left the area clean."
+1
Serving Great Lakes, IL and surrounding areas
Approved
Super Service Award Winner
In business since 2014
Credit card accepted
Customers say: True professional
"Excellent .. called early to make sure we were on same page with scheduling. Arrived when he said he would and did a great job with excellent recommendations for improving our current furnace situation even though it was just a maint. call. Will hire again."
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.
From average costs to expert advice, get all the answers you need to get your job done.
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