Get matched with top generator install pros in Lynnfield, MA

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 size generator does my house need?

• <div><p>You can determine what size generator you need by listing the various appliances it will power during an outage. Write down the start-up watt usage, and then add them all together. </p><p>A 7,500-watt generator will run your refrigerator, freezer, well pump, and lighting circuits without a problem. However, you&rsquo;ll need an extra 3,000 to 4,500 watts to run your water heater and another 5,000 to 25,000 watts to run your electric furnace. In these instances, a whole-home generator is your best bet for running your critical equipment.</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: 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 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&rsquo;s natural gas supply are the best option for extended usage, as these won&rsquo;t rely on a finite fuel supply based on how much you have in storage. Generators running on liquid propane or diesel won&rsquo;t last as long, as these require fuel storage and regular refueling to stay running.</p></div>

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Verified Reviews for Generator Install pros in Lynnfield, MA

*The Angi rating for Generator Install companies in Lynnfield, MA 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 Lynnfield, MA 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 January 06, 2026

Reviewed in August 2025
Michael did a good job doing exactly what we asked for installing a grab bar in the shower as well as a hand rail in the garage. He was neat, clean, responsible and punctual.
Solazzo International
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Reviewed in August 2025
Tim responded to my project immediately. He was very friendly, knowledgeable, and would be available within 48 hours. As we discussed the details of my issue further, he surmised that his services may not be necessary after all, and encouraged me to try a pest control company first. 5 stars...
Exclusion Pros Wildlife Services LLC
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Reviewed in June 2025
Quick and easy process. John and his crew did an awesome job. Very responsive company. Tree removal was quick and easy by John's skilled workers.
JAE Tree Service
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Reviewed in September 2024
The office made a multiple efforts to schedule the appointment at the best time for us. The technicians showed up on time and assessed the work. Even though they were only here to give me an estimate, they got me a price, from the office, that I agreed to and completed the work. The left the...
Addario, Inc.
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Reviewed in September 2023
We recently hired Fama to repair dilapidated steps to the entryway of our house. Claudio responded quickly and came out to assess. He gave us an extremely reasonable and competitive quote. We set a date for the project, but were continually met with rain, which was obviously out anyone's...
Fama Masonry
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Reviewed in September 2023
Kevin was very easy to work with and was extremely accommodating. We will definitely be using him for any future projects. You will not be disappointed if you hire him.
Kevin Kelley Electrical LLC
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Reviewed in July 2022
The guys did a great job installing 2 Garage door openers and made sure I was completely happy with the installation of the openers. Very professional.
Universal Garage Door
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Reviewed in May 2022
Very satisfied with the job by Junior Landscaping. They came and took care of my lawn last minute and it looks great!
Junior's Landscaping
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Reviewed in May 2021
In June of 2019 I had Imbruglia Marble and Tile at my home in Peabody to a bathroom off my master bedroom. It was a total gut and rehab. He helped us pick out the best tiles for the job. He tiled the shower stall including the ceiling because we were installing a steam generator. We also had...
Imbruglia Marble & Tile
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Reviewed in July 2020
Courteous, polite, kept me informed. Projects included, but not limited to installation of switch, installation of lighting fixture, installation of an outlet, other project - surge protector.
Sylvester Electric, Inc.
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