What can I run on different generator sizes?

• <div><p>Here’s what you can run with different wattages and types of generators:</p><p>Portable generator:</p><ul><li><p>2,000 watts can handle a large appliance like a freezer or refrigerator, plus a few smaller items like phones or computer chargers. </p></li><li><p>4,000 watts will keep two large appliances operating and a few smaller devices.</p></li><li><p>8,000 watts should power most essential appliances and other devices, including a sump pump, well pump, or your dishwasher.</p></li></ul><p>Partial to whole-house generator:</p><ul><li><p>20,000 watts and above will make it seem like your home’s power is still on.</p></li></ul><p></p></div>

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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’s the normal lifespan of a diesel generator?

• <div><p>You can expect a diesel generator to last for up to <b>30,000 hours of use</b>, which works out to 20 to 25 years with the proper maintenance, of course. That depends on how much you use it, so a diesel generator used for emergencies a couple of times a year will last a lot longer than a generator that takes over for a faulty electrical grid every month for a day or two. </p></div>

Q: What can I run on different generator sizes?

• <div><p>Here&rsquo;s what you can run with different wattages and types of generators:</p><p>Portable generator:</p><ul><li><p>2,000 watts can handle a large appliance like a freezer or refrigerator, plus a few smaller items like phones or computer chargers. </p></li><li><p>4,000 watts will keep two large appliances operating and a few smaller devices.</p></li><li><p>8,000 watts should power most essential appliances and other devices, including a sump pump, well pump, or your dishwasher.</p></li></ul><p>Partial to whole-house generator:</p><ul><li><p>20,000 watts and above will make it seem like your home&rsquo;s power is still on.</p></li></ul><p></p></div>

Q: How long can a whole house generator run?

• <div><p>As long as they have enough fuel, whole-house generators can run for weeks at a time (400 to 500 hours) without suffering too much wear and tear. However, this type of extensive use isn&rsquo;t ideal if you want to extend the life of your generator.</p><p>Two important points. First, some generators may need you to periodically check oil levels every day or so and refill as necessary for safe operation. Second, if your generator uses a fuel tank, keep it regularly full so it doesn&rsquo;t suddenly shut off. Many backup generators can run through a full tank in a day when they are powering large portions of a home.</p></div>

Q: Is it safe to run a generator continuously?

• <div><p>It is safe to run a generator continuously, but you must follow safety protocols to ensure personal and home safety. Read the manufacturer&rsquo;s instructions for specific recommendations, but the general recommendation is to turn generators off overnight or when you&rsquo;re away from the house. Overworked generators can pose a fire hazard and if your generator is not in a well-ventilated area, running it continuously could lead to carbon monoxide poisoning. </p></div>

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Verified Reviews for Generator Install pros in Defiance, IA

*The Angi rating for Generator Install companies in Defiance, IA 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 Defiance, IA 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 May 2025
Installed new LVP flooring, along with new trim. Completed when he said he would, work looked great! Also installed a front door!
Savage Renovations, LLC
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Reviewed in December 2024
Great customer service Fast installation Affordable service Skyline tore off and re did the asphalt roof on my house after wind and hail damage. I was so impressed I hired them to also do my garage and shed. These guys do great work.
SKYLINE RESTORATION INC
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Reviewed in December 2023
Jon, Ler and Emanuel L were the crew who installed 5 piers on the corner of my house. They were very efficient, and left things looking exactly as before they did the job. I received updates as their work progressed.
Groundworks
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Reviewed in June 2023
David was personable, prompt, and precise in his installing of a deadbolt and door knob. I would hire him for other work, as well! 5/5
David J. Soukup Construction, Inc.
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Reviewed in September 2022
The installer did a very good job. The only hang up was the bracket for my shower seat. The package was labeled for a right side bracket, but a left side bracket was inside the page. It was mislabeled at the warehouse. Certainly not the installers fault. Bath Planet scheduled a time to come...
Bath Planet
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Reviewed in July 2021
Quick, efficient, neat. Installers were thorough and informative. It was a pleasure to do business with them.
Renewal by Andersen
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Reviewed in February 2020
Phil and his crew rearranged their current jobs to ensure that our floors were refinished in time to get the painting done before our move-in date. We also asked them to remove all the baseboards and quarter round - which was good thing because then we could see how poorly the flooring had been...
Oak Wood Floor
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Reviewed in May 2017
Everything went well. Installation and adaptation to my existing ducts was exactly as I wanted it. The price seemed high, but they were actually the lowest of 3 local bids.
C AND K Heating, Cooling & Plumbing
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Reviewed in August 2016
I decided to make the purchase though I did not need all of the equipment. The TRITON 9000 RS Generator/Compressor/Welder machine was what I really had my eye on. I had never seen a machine with so many functions before. The 10,000 gas generator is the machine I needed the most, but the other...
AMP-American Multi-Products
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Reviewed in May 2014
Our first interaction with our point of contact went well. We were given lots of information in both oral and written form. Sales person was not pushy and was very prompt with his estimates. We accepted the proposal, scheduled an installation date, andproceeded to have the system installed. The...
Neighbors Heating Cooling Plumbing & Geothermal
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Find Generator install pros in Defiance

Panora Auto Parts

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Panora Auto Parts

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14 years of experience

We specialize in small engine repair including brands like Stihl, Toro, Briggs & Stratton, Honda, Kohler, etc. Pick up and delivery is included within a 15 mile radius.

IA Electric

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IA Electric

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12 years of experience

Full service electrical contractor serving the North Iowa area. We use flat rate pricing that guarantees the price we quote is the price you pay, no surprises when the invoice shows up.

Trinity Electrical Services LLC

5.00(

)

Trinity Electrical Services LLC

5.00(

)

Customers say: Quick response

Recommended by 100% of Angi customers

We are a family run full service electrical contracting company based in Sioux City, Iowa. No project too big or small for us.

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

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.

You can expect a diesel generator to last for up to 30,000 hours of use, which works out to 20 to 25 years with the proper maintenance, of course. That depends on how much you use it, so a diesel generator used for emergencies a couple of times a year will last a lot longer than a generator that takes over for a faulty electrical grid every month for a day or two.

Here’s what you can run with different wattages and types of generators:

Portable generator:

2,000 watts can handle a large appliance like a freezer or refrigerator, plus a few smaller items like phones or computer chargers.
4,000 watts will keep two large appliances operating and a few smaller devices.
8,000 watts should power most essential appliances and other devices, including a sump pump, well pump, or your dishwasher.

Partial to whole-house generator:

20,000 watts and above will make it seem like your home’s power is still on.

As long as they have enough fuel, whole-house generators can run for weeks at a time (400 to 500 hours) without suffering too much wear and tear. However, this type of extensive use isn’t ideal if you want to extend the life of your generator.

Two important points. First, some generators may need you to periodically check oil levels every day or so and refill as necessary for safe operation. Second, if your generator uses a fuel tank, keep it regularly full so it doesn’t suddenly shut off. Many backup generators can run through a full tank in a day when they are powering large portions of a home.

It is safe to run a generator continuously, but you must follow safety protocols to ensure personal and home safety. Read the manufacturer’s instructions for specific recommendations, but the general recommendation is to turn generators off overnight or when you’re away from the house. Overworked generators can pose a fire hazard and if your generator is not in a well-ventilated area, running it continuously could lead to carbon monoxide poisoning.

The Defiance, IA homeowners’ guide to generator installs

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