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*The Angi rating for Generator Install companies in Bertha, MN 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 Bertha, MN 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 February 12, 2025

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Mill Lake Electric, LLC
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Serving Bertha, MN and surrounding areas

In business since 2005

Free estimates

Mill Lake Electric, LLC is committed to your satisfaction, providing residential and commercial wiring and repair work with the highest level of customer service. We are dedicated to provide great work at a fair price for all your electrical needs. Our craftsmanship and our dedication to customer satisfaction will get the job done. Mill Lake Electric, LLC is licensed and insured. We are on time, on budget, and are perfectionists. All our electrical work and our complete repairs are guaranteed, for your 100% satisfaction. If you have a tough problem or difficult challenge, Mill Lake Electric, LLC is the one for you. We cut right through difficulties. Call today for the perfect electrical installation and repair work that you need.

Recommended by100%of homeowners
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Naniks Electric, LLC
New to Angi

Serving Bertha, MN and surrounding areas

In business since 1982

Free estimates

Nanik's Electric has been servicing the Central Minnesota area since 1982. Our goal is to provide professional, friendly and quality service in any job that we do. No job is too big or too small! Please feel free to contact us 24 hours a day, seven days a week. \nServices Provided By US\n\n�Residential, Commercial, Industrial, and Agricultural \n�Sign Lighting\n�Lighting Retro Fit\n�New Services \n�Underground\n�Repair and Troubleshooting\n�Service/Panel Upgrades\n�Irrigation\n�Bin Sites\n�Commercial Barns\n�Parlor Wiring\n�Wire Location\n�Boom Truck Work\n�Home or Building Remodel\n�Data and Communication Wiring\n�Plus Many More Services!\n\n- Fast or immediate response for service calls!\n\n- All work meets electrical code requirements!\n\n- 24 hour emergency service available!\n

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Generator Install questions, answered by experts

Sizing a generator is a careful process that requires calculating the electrical load of your entire house. You have to take into account every device you want to use and their wattage requirements, plus the wattage needed to start them, and look for a generator that can safely run all that at around 80% capacity.

In more practical terms, a small home can run on a 10,000-watt generator (and if you only want to power a few key appliances, much less than that). A mid-sized home may need something between 15,000 and 22,000 watts. Larger homes require 25,000 watts or more. 

A portable generator can supply power to selected appliances and circuits in a home, but it's generally not designed to handle the entire household's electrical needs simultaneously. Portable generators have limited wattage capacity, so they are only designed to power essential devices and electronics temporarily until local power is restored. If your power needs outweigh the capabilities of a portable generator, consider installing a whole-home generator instead.

Whole-house generators need to be installed on level ground several feet away from walls and other objects. Because they tap into the electrical system directly, they usually need to be close to your home electrical panel for a transfer switch installation. It also helps with installation if they are near to a gas line or propane tank installation.

If you’re wondering whether gas generators produce carbon monoxide, know that natural gas generators do not produce carbon monoxide if they are functioning properly, as natural gas burns cleanly. However, if the generator malfunctions and the gas does not burn completely, there is potential for carbon dioxide to be produced. To prevent malfunctions, it's crucial to perform regular maintenance, including running the generator weekly and scheduling professional inspections every 6 to 12 months. Also, be sure to test your carbon monoxide detectors regularly to ensure they function in the rare case of the generator producing carbon monoxide.

To determine the right size generator for your house, you should calculate the total wattage of the appliances and devices you want to power during an outage. List all essential items, note their start-up wattages, and add them together.

Here are some typical wattage requirements for common appliances:

  • Refrigerator: 600 watts

  • Large dehumidifier: 700 watts

  • Large window air conditioner: 1,400 watts

  • Water heater: 3,000 to 4,500 watts

  • Electric furnace: 5,000 to 25,000 watts

A 7,500-watt generator might be sufficient for essentials like a refrigerator, freezer, well pump, and lighting circuits. However, for high-demand items like a water heater or furnace, a whole-home generator is a better choice. A portable generator may be enough if you only need to power a few critical items.

While home square footage can offer a rough estimate, it is not always a reliable indicator. For reference, here are some typical generator sizes based on square footage:

  • 1,000 sq ft: 6–9 kW

  • 1,500 sq ft: 7–10 kW

  • 2,000 sq ft: 10–14 kW

  • 2,500 sq ft: 12–16 kW

  • 3,000 sq ft: 16–20 kW+

For the most accurate sizing, consult a professional who can calculate your home's peak and average power consumption and recommend the optimal generator.

The Bertha, MN homeowners’ guide to generator installs

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

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