Do you need backup heat with geothermal?

• <div><p>If a geothermal heat pump is installed correctly, then you shouldn’t have to worry about having a backup heat source such as a <a href="https://www.angi.com/articles/furnace-and-heating-basics.htm">furnace</a> or oil boiler. However, there are geothermal systems installed that include a backup in case the heat pump fails due to extreme cold. This is simply a backup heat pump you’ll likely never need and not an alternative heat source.</p></div>

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TRUSTED BY BAY CITY, WI HOMEOWNERS

4.7
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39
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Verified Reviews for Heating Oil Service pros in Bay City, WI

*The Angi rating for Heating Oil Service companies in Bay City, WI is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating Oil Service needs.

*The HomeAdvisor rating for Heating Oil Service companies in Bay City, WI is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating Oil Service needs.

Last update on October 22, 2025

Reviewed in January 2025
I had an outlet put under my vanity in my master bath to accommodate a point to use hot water heater. I am very happy with the results. Walter’s resolved the issues requested.
WALTER'S ELECTRIC OF ELLSWORTH, WIS., INC.
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Reviewed in January 2017
Like most thing a pool or spa needs parts and service. I went in to buy parts like I have in the past and the part was $199 but listed as $63 for Cal Spa directly. I asked why the big difference? The parts guy turned into a jerk and told me to go by the parts elsewhere. A couple of winters ago I...
CAL SPAS OF MINNESOTA
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Reviewed in August 2014
Our 9 year old water heater stopped giving us hot water. Dave came out at the time expected. Found the problem and we have hot water again.
Snelling Heating Cooling Electrical
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Reviewed in April 2014
1) Had a bushing replaced on a mid-sized SUV. The service didn't seem to help my squeaking issue that we were trying to solve. I had the truck into the dealer for some recall work the week after, and they happened to notice the bushing had been installed upside down. That was a quick fix, but...
RMF Auto Service
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Reviewed in July 2012
The guy did a pretty good visit. He came to check my furnace. While he was waiting for me, he also checked our water heater. He told me that the water heater was installed correctly but it had a problem. The water heater was still under warranty. So they did the replacement work. They...
Anderson Heating
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Reviewed in March 2012
Service was prompt, the new hot water heater was installed the next day. I called 4 other places, prices here were %20 less on average.
Advanced Plumbing Systems
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Reviewed in March 2011
They did a great job. It is a 500 pound high-tech and high efficiency water heater. They called in a plumber to do it for me and it was perfect. Their price was excellent.
Richmond Plumbing and Heating Inc
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Reviewed in October 2009
He chaged the element in the electric water heator I wasent there he cleaned out thr lime and repaired the unit
Dave Nelson Construction
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Reviewed in July 2006
I would recommend Kavanagh to anybody who needs heating or air conditioning service. I felt that everything was fair and reasonable. I also felt that the price was very reasonable.
TIM KAVANAGH
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Heating Oil questions, answered by experts

For most systems, an annual HVAC system service is more than enough. Some homeowners prefer a twice-a-year visit to ensure the system is ready for the upcoming summer and winter seasons. If you need to call an HVAC pro more often than this, it may be time to check if your system is getting old enough for a replacement.

Yes, including optimizing settings and suggesting upgrades if needed.

Yes, geothermal heat pumps are worth the money. You can save about 70% on heating costs in the winter and around 50% on cooling costs in the summer with a geothermal heat pump compared to a traditional HVAC system. Over time, your savings on monthly utilities will pay for the cost of the geothermal heat pump installation. If you have an incredibly small yard, however, you may not have enough space for this type of system.

If a geothermal heat pump is installed correctly, then you shouldn’t have to worry about having a backup heat source such as a furnace or oil boiler. However, there are geothermal systems installed that include a backup in case the heat pump fails due to extreme cold. This is simply a backup heat pump you’ll likely never need and not an alternative heat source.

Yes, technicians check refrigerant levels, loop performance, and system calibration for peak efficiency.

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