How many days can a standby generator run continuously?

• <div><p>The <a href="https://www.angi.com/articles/how-long-can-whole-house-generator-run-continuously.htm">amount of time a standby generator can run continuously</a> is around <b>3,000 hours</b> on average. However, standby generators can generally run indefinitely as long as they have a continuous fuel supply. Generators hooked up to a home’s natural gas supply are the best option for extended usage, as these won’t rely on a finite fuel supply based on how much you have in storage. Generators running on liquid propane or diesel won’t last as long, as these require fuel storage and regular refueling to stay running.</p></div>

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Q: What is a remote start generator?

• <div><p>These advanced generators use a key fob or a smartphone app to remotely start, which is ideal for getting power back on immediately without venturing outside. This feature is more common on whole home generators, but you may be able to find it on large portable generators, too.</p></div>

Q: What size whole house generator do I need to run central AC?

• <div><p>To power a central air system during a power outage, the whole-house generator will need to be at least 5,000 watts, and this number will significantly increase for larger units. Check the specific wattage requirements of your AC unit to choose the right <a href="https://www.angi.com/articles/whole-house-generator-sizing.htm">generator size</a>. Consider consulting a generator installer to ensure your whole-house generator meets your electrical load needs.</p></div>

Q: What are the benefits of a portable generator?

• <div><p>Portable generators provide backup power for essential appliances during outages and are easy to relocate.</p></div>

Q: Do I need a permit to install a portable generator?

• <div><p>You may need a permit for a portable generator if you&rsquo;ll be installing a transfer switch for your primary residence or similar work. Otherwise, a permit for other uses may not be necessary. Check your local building codes or ask a local generator installer for more information about your local regulations.</p></div>

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Verified Reviews for Generator Install pros in Tombstone, AZ

*The Angi rating for Generator Install companies in Tombstone, AZ is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.

*The HomeAdvisor rating for Generator Install companies in Tombstone, AZ is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.

Last update on December 07, 2025

Reviewed in September 2019
I supplied the garage door opener. They installed expertly and efficiently. Would hire again.
Westover Garage Door Service LLC
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Reviewed in February 2019
Oscar came out and measured when promised. Delivery was anticipated in 8 weeks. 8 weeks later Leo called and set an installation appointment. Installation was on time, done quickly and the blinds look great.
AZTEC Blinds & Shutters
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Reviewed in February 2018
Mr. Clifford Leo and his assistant were right on time, friendly, polite and got the job done expertly. Explained the new heater to me, assured me they would do the draining/maintenance in a year, as part of the service of installation. They also took a look at the gas line I needed to have a...
Cliff's Classic Care Plumbing LLC
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Reviewed in June 2015
When I originally called to make the appointment, I was told that they were not carrying the generic heart worm preventative anymore, that the company went out of business, and that they were now carrying the high dollar one. We were also told that we would have to pay for a "wellness exam"...
Coronado Veterinary Hospital
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Reviewed in June 2014
We had them install cabinets and countertops. The price was high. The countertops took awhile to get installed due to how long it took the cabinets to be installed. The cabinets still have writing that you can see on the side that has been shallacked over. They used two different color...
LOWE'S
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Reviewed in June 2013
We have used San Pedro Plumbing to: (1) install water softener (post construction); (2) provide and install 50 gal hot water heater; (2) install two upstairs toilets. All services were beyond expectations. The prices quoted were reasonable. The service provided was timely and professional. ...
San Pedro Plumbing
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Reviewed in November 2012
Order and install went very well
HOME DEPOT
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Reviewed in May 2007
The actual store experience was excellent. I had looked at Sears Outlet for appliance sales they beat them by a lot. As far as the installation it was horrendous. They couldn't find the place, and couldn't read the directions. The job was done so bad that the warranty repairman had to come and...
APPLIANCE WORLD
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Find Generator install pros in Tombstone

Gruber Power Services has been providing power protection solutions since 1984! Our expertise ranges from small PC based power protection products, to the largest of UPS/Power Conditioning and Distribution Systems, and encompasses all the technologies available from solid-state products, to rotary and engine generator design systems. Our corporate headquarters is located in the "Valley of the Sun" or better known as Phoenix, Arizona. The wonderful weather nearly year-round helps us attract and retain a very talented labor force. We enjoy visitors and welcome you to experience our hospitality.

SFA, LLC

3.67(

)

SFA, LLC

3.67(

)

27 years of experience

Electrical contractor offering quality electrical services to residential, commercial and industrial sectors. We have a team of highly skilled employees dedicated to meeting the needs of our clients. Our goal is total customer satisfaction with work done in the safest and most efficient manner.

"The install went well, with one small detail forgotten. There was one pole that we needed for mounting something to the fence. That is an easy fix and the installers will come back in a day or two to finish it up. We called several other fencing companies in Tucson and none of them were doing what we were wanting. Although the price seemed high, they did have to dig through some asphalt to mount the poles. In all, it was exactly what we needed and they did a great job installing."

Eric L on July 2018

"The install went well, with one small detail forgotten. There was one pole that we needed for mounting something to the fence. That is an easy fix and the installers will come back in a day or two to finish it up. We called several other fencing companies in Tucson and none of them were doing what we were wanting. Although the price seemed high, they did have to dig through some asphalt to mount the poles. In all, it was exactly what we needed and they did a great job installing."

Eric L on July 2018

My Classic Car Trader LLC

2.00(

)

My Classic Car Trader LLC

2.00(

)

53 years of experience

Sales, Service & Rebuilding of Antique and Classic Car Components such as, Carburetors, Starters, Generators, Fuel Pumps, Double & Single Action Fuel Pump Rebuilding, Water Pumps, Hydraulic Top Pumps, Distributors, and DELCO Knee Action Shocks, We also carry a complete line of NOS and NORS parts. We offer FREE Technical advice for any YEAR Classic Car 609-462-7412

"Beware. They charged me double shipping even after I told them I would wait so I wouldn’t have to pay two shipping fees. The last item was a fuel pump that I had a problem with. I have made 4 calls to ask for help with no return call. Poor"

Frank H on July 2020

"Beware. They charged me double shipping even after I told them I would wait so I wouldn’t have to pay two shipping fees. The last item was a fuel pump that I had a problem with. I have made 4 calls to ask for help with no return call. Poor"

Frank H on July 2020

Generator Install questions, answered by experts

These advanced generators use a key fob or a smartphone app to remotely start, which is ideal for getting power back on immediately without venturing outside. This feature is more common on whole home generators, but you may be able to find it on large portable generators, too.

The amount of time a standby generator can run continuously is around 3,000 hours on average. However, standby generators can generally run indefinitely as long as they have a continuous fuel supply. Generators hooked up to a home’s natural gas supply are the best option for extended usage, as these won’t rely on a finite fuel supply based on how much you have in storage. Generators running on liquid propane or diesel won’t last as long, as these require fuel storage and regular refueling to stay running.

To power a central air system during a power outage, the whole-house generator will need to be at least 5,000 watts, and this number will significantly increase for larger units. Check the specific wattage requirements of your AC unit to choose the right generator size. Consider consulting a generator installer to ensure your whole-house generator meets your electrical load needs.

Portable generators provide backup power for essential appliances during outages and are easy to relocate.

You may need a permit for a portable generator if you’ll be installing a transfer switch for your primary residence or similar work. Otherwise, a permit for other uses may not be necessary. Check your local building codes or ask a local generator installer for more information about your local regulations.

The Tombstone, AZ homeowners’ guide to generator installs

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

See all articles

Taylor Freitas
•
Nov 25, 2025Nov 25, 2025
How Much Does a Whole-House Generator Cost? [2025 Data]
The average cost of a whole-house generator falls between $5,000 and $25,000. Keep reading to learn how much you can expect to spend.
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•
Oct 29, 2025Oct 29, 2025
How Much Does It Cost To Install a Generator Transfer Switch? [2025 Data]
The cost to install a generator transfer switch depends on several factors. Our guide will help you understand all of the costs.
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•
Oct 30, 2025Oct 30, 2025
How Much Does Whole-House Generator Maintenance Cost? [2025 Data]
Keeping on top of generator maintenance and repairs gives you extra peace of mind as a homeowner. Find out how much regular generator maintenance costs.
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•
Mar 13, 2025Mar 13, 2025
Best Fuel For a Whole-House Generator: 5 Options
If you’re investing in a large power alternative for your home, it deserves the right fuel for your job. Here are the top options for a whole home generator.
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Mar 7, 2025Mar 7, 2025
Who Can I Hire to Fix a Generator?
Searching for a pro who can fix a generator? Consider hiring a generator technician or an electrician to handle the job.
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Nov 24, 2025Nov 24, 2025
How Much Does a Natural Gas Generator Cost? [2026 Data]
Natural gas generators are whole-home standby generators that are connected to your home’s natural gas line. The average cost for a natural gas generator is $12,000.