Get matched with top generator install pros in Rock Hill, MO

Q: Can you switch fuel types for a whole-house generator?

• <div><p>In many cases, yes. There are models called dual-fuel generators and fuel switches, but only between certain types of fuel. For example, with the right setup you can convert a generator from natural gas to propane. Some allow switching between diesel and gasoline. There are even tri-fuel generators available in some cases, which adds a large layer of security if you are worried about fuel availability in times of crisis. Always check your generator capabilities and manual instructions before trying to switch fuels. Some generators can use another fuel but may need a fuel conversion kit to prep them first.</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 size generator do I need to run a fridge?

• <div><p>While the rating will tell you how many watts the refrigerator needs at the peak of its cycle, it requires additional wattage to start. At the bare minimum, you&rsquo;ll need a 1,500-watt generator to get the fridge up and running after a blackout. A 2,000-watt generator should be sufficient for most home refrigerators.</p></div>

Q: How close can a transfer switch be to a generator?

• <div><p>Generally, you&rsquo;ll want to keep between <b>60 and 70 feet</b> between the generator and the transfer switch. There are a few reasons for this, including:</p><ul><li><p>The distance reduces the noise coming from the generator into your home.</p></li><li><p>It increases efficiency because you won&rsquo;t have a voltage drop from this short of a distance.</p></li><li><p>Prevents carbon monoxide poisoning: keep at least 15 feet between your generator and an open window. </p></li></ul><p></p></div>

Q: How big of a generator do I need for a transfer switch?

• <div><p>You can determine what size generator you need for a transfer switch by matching the switch to the largest outlet on your generator. Larger generators can power up to 10 circuits, while most 5,000-watt generators can provide power to six circuits. So, if your generator&rsquo;s largest outlet is 30 amps, you&rsquo;ll need a 30-amp transfer switch.</p></div>

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Verified Reviews for Generator Install pros in Rock Hill, MO

*The Angi rating for Generator Install companies in Rock Hill, MO 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 Rock Hill, MO 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 13, 2026

Reviewed in September 2025
We recently had Midtown Home Improvements install new siding, soffits, and gutters, and the difference is phenomenal. From the first consultation, Ryan stood out as a fantastic point of contact—responsive, friendly, and incredibly knowledgeable. He promptly addressed all our questions and made...
Midtown Home Improvements, Inc. (St. Louis)
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Reviewed in May 2025
Needed new outlets installed eyuup was fantastic. He installed 8 new outlets all of them turned out perfectly.
*Power electric
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Reviewed in October 2023
Removed brick veneer from one section of our house and installed in another area. They installed stone top caps on a brick half wall across the entire front of our house and white washed brick. They also repaired our brick chimney and brick HVAC exhaust stack.
Chief Construction LLC
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Reviewed in August 2023
Excellent visit. Professional, courteous and punctual.
Anton's Plumbing, Heating/Cooling & Energy Experts
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Reviewed in July 2022
Our plumber was very conscientious, arrived well before the scheduled time and had to work very hard to remove the old dishwasher as several previous changes in the kitchen had affected the setting of the unit. The removal accounted for the greatest portion of the time & cost. The subsequent...
Bieg Plumbing & Mechanical
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Reviewed in May 2022
The salesman and installer were both personable and professional.
Leafs Out Gutter Protection
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Reviewed in June 2021
Al is the best contractor in St. Louis. Al built our extension in 2016 and the result was outstanding. So when we decided to remodel our kitchen and bathrooms, we thought of him first. Once again, the result exceeded our expectations. The project was completed on time, on budget, and with...
Birkenmeier & Sons Inc
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Reviewed in May 2020
There were two separate projects and both went very well. The interior painting included painting of two bedrooms, hallway, living room, family room, and laundry room. Some excellent repairs were made to the plaster walls. Also, new hinges were installed on all the doors. The external painting...
Carter Custom Painting llc
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Reviewed in January 2020
they were responsive, professional and it was nice supporting a multi-generational family business
Foam Engineers
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