How often should I service my HVAC?

• <div><p>Your HVAC manufacturer will give you instructions on how often you should service your system. Have your unit professionally serviced at least once a year when in doubt. </p><p>Heat pump systems are different because they provide heating and cooling solutions for your home. In this case, you should have it serviced at least twice a year.</p></div>

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 ERHARD, MN HOMEOWNERS

4.2
Average homeowner rating
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Verified Reviews for Heating Oil Service pros in Erhard, MN

*The Angi rating for Heating Oil Service companies in Erhard, MN 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 Erhard, MN 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 November 16, 2025

Reviewed in November 2025
Diversified is my first call when there's heating or cooling to be fixed or installed. They're always very punctual and go out of their way to do a great job!
DIVERSIFIED SERVICES N.A. LLC.
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Reviewed in May 2025
Great job, well done. All new American Standard furnace/AC/Heat Pump.
Ellendale Heating & Cooling, LLC
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Reviewed in February 2024
Great customer service! Elite Comfort Heating and Cooling serviced all of my 4 houses ! Did an outstanding job! I truly recommend!
Elite Comfort Heating and Cooling
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Reviewed in January 2014
Contacted Conners Plumbing & Heating to come out and inspect our 12 year old leaking hot water heater to determine whether a replacement was needed. Dave was quickly able to determine that a replacement was necessary. Pricing was discussed, we obtained additional quotes, and ultimately decided...
Connors Plumbing & Heating Inc
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Reviewed in June 2013
The previous owner had been billed for installation of a new furnace and venting. Maybe that happened sometime in the 1960's but not in this century. That company would not even come out and inspect the work we were being billed for. We called Mand M Heating, they came out at the time...
M & M HEATING & AIR LLC
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Reviewed in October 2012
Mr Hemann came out and inspected the chimney and fireplace, he said the chimney was in great shape and did not require cleaning but noticed that the hot water heater exhaust pipe had some corrosion and suggested that a roofing and heating company be contacted. Since we had never used a fireplace...
Hemann Chimney Sweeping
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Reviewed in September 2010
We called Barnes Plumbing because two of our radiators were not heating properly. Mike came out and turned one of our radiator valves fully open and explained how to check the others in the house. He did not charge us and he took time to explain how our heating system works. We would...
Barnes Plumbing Co
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Reviewed in October 2007
They worked very quickly (probably from using the Pex pipe), and kept us on schedule. The framer couldnt build the portions until the water heater was moved, and the plumber couldnt rough-in the supply lines until the framing was in place. Both accommodated the other so it was all done well and...
Norblom Plumbing
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Find Heating oil pros in Erhard

Aquarius Home Services

Aquarius Home Services

Customers say: Super punctual

Recommended by 92% of Angi customers

438 local quotes requested

Aquarius Home Services is the top home service provider in Minnesota and Wisconsin. Offering expert service in HVAC, Water Softeners, Plumbing and Electrical . Our work is backed by a 100% performance guarantee.

"They were on time. Explained what he would do, was very professional and did a great job."

Dan C on October 2025

"They were on time. Explained what he would do, was very professional and did a great job."

Dan C on October 2025

J Brothers Mechanical Plus

5.00(

)

J Brothers Mechanical Plus

5.00(

)

Recommended by 100% of Angi customers

Service plumbing, service heating and cooling, new construction plumbing, Heating, and cooling, equipment replacement.

"Excellent work done by J Brothers. Very professional and friendly. Got the job done in a timely manner and covered all the bases. Will hire again for all plumbing and HVAC needs! Only company I trust to get the job done."

Tyler B on December 2022

Service plumbing, service heating and cooling, new construction plumbing, Heating, and cooling, equipment replacement.

"Excellent work done by J Brothers. Very professional and friendly. Got the job done in a timely manner and covered all the bases. Will hire again for all plumbing and HVAC needs! Only company I trust to get the job done."

Tyler B on December 2022

Heating Oil questions, answered by experts

Your HVAC manufacturer will give you instructions on how often you should service your system. Have your unit professionally serviced at least once a year when in doubt.

Heat pump systems are different because they provide heating and cooling solutions for your home. In this case, you should have it serviced at least twice a year.

DIY maintenance like filter cleaning is possible, but professional servicing ensures proper pressure, refrigerant levels, and loop performance.

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.

A geothermal heat pump system will take about 10 years to pay for itself, and it has a life span of anywhere from about 25 to 50 years. Installing a geothermal heat pump will cost about $14,250 upfront, but it can reduce your energy bills by around 65% when compared to a conventional HVAC system.

Costs depend on system age, type, labor, and whether part replacements are necessary.

The homeowners guide to home care is here

From average costs to expert advice, get all the answers you need to get your job done.

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