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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Verified Reviews for Heating Oil Service pros in Republic, WA

*The Angi rating for Heating Oil Service companies in Republic, WA 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 Republic, WA 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 27, 2025

Reviewed in October 2015
The oil change was done without authorization, I wait for the car computer to let me know when to change oil. The computer was not reset for the next oil change.
Kresky Auto Repair & Electric Inc
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Reviewed in April 2014
Very outstanding work. He took the time to explain all out our heating system and the thermostat. Also, he set and recommended the proper energy savings for our heater, too. I would recommend them again. Excellent job.
Peninsula Heat
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Reviewed in March 2014
My brother bought a new heat pump and I still have oil heat. The job was completed in a timely manner and on the day and time that we had arranged. This company recently took over servicing oil furnaces and I was happy they could do this job for us.
ACTIONAIRE INC
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Reviewed in January 2014
Car ready before promised. Loaner was provided and warmed up before giving it to me. I also have all my oil changes done with this dealer. The always provide me with a report on systems such as tire wear, brakes percentage of wear, and possible future maintenance. There is never any pressure...
Wilder Toyota Inc
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Reviewed in September 2013
A group of really nice, professional people. I got rides to and from my home while the services were being done. Average prices, great waiting area complete with cookies, coffee and a massaging chair! Their my auto repair guys for sure. Oh, and they even wash your car as part of the oil...
I-5 Toyota Scion
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Reviewed in September 2013
From the initial phone call to the completed installation everything went great. This was the first time my wife and I used Noble Plumbng and Heating and we couldn't be more satisfied. To my way of thinking Richard is a professional in every sense of the word and his years of experience...
Noble Plumbing & Heating
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Reviewed in July 2013
Timely response. Professional job. Didn't push the upsale to replace the as old but working water heater to far. Price was on the high side
Benjamin Franklin Plumbing
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Reviewed in February 2013
1986 Mazda B2000 Pickup;one owner. Oil light came on. Reservoir was full. Called and they said bring it on in but would be several days before they'd be able to get to it. This is Monday afternoon. I thought oil pump. Wednesday they called and said sensor. Come and get it . We've been...
Olympic Springs
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Reviewed in January 2013
We called and set an appointment for a complete inspection and service on our heat-pump system. The serviceman was very punctual, friendly.and extremely knowledgeable of the system. This was our first service since purchasing the house and I asked several questions regarding the heat-pump. He...
Air Flo Heating Inc
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Reviewed in December 2012
We returned it twice and still had oil on the garage floor. See above.
SEQUIM AUTO CLINIC AUTO REPAIR
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Heating Oil questions, answered by experts

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.

Service costs range from $200 to $1,500, depending on maintenance needs, system age, and labor.

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.

Leaks, poor airflow, reduced efficiency, and loop blockages are common problems requiring service.

Geothermal systems provide energy efficiency, lower utility bills, and long-term sustainability with minimal environmental impact.

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