30+

Years Of Experience

Backup Power Systems Installed for Storm Outages

Whole House Generators in Tecumseh for maintaining essential household power during utility service interruptions

Michigan storms bring wind, ice, and lightning that damage utility infrastructure and leave homes without power for hours or days while repairs progress across affected areas. Whole house generators respond to outages by starting automatically when utility power drops, transferring electrical load to generator output, and supplying the circuits required to keep refrigeration, heating, lighting, and water systems operational until grid service returns. Garner Heating And Cooling LLC plans and installs generator systems throughout Tecumseh and surrounding communities, applying more than 30 years of mechanical and electrical experience to properly sized installations that meet code requirements for fuel connections, transfer switch operation, and generator placement.


Generator installation begins with calculating the electrical load from essential circuits and appliances that must remain powered during outages. This calculation determines generator capacity in kilowatts, ensuring that equipment can handle startup surge current from motors and compressors without overloading. Installation includes running fuel lines to natural gas or propane supplies, mounting transfer switches that isolate generator output from utility power, and positioning outdoor generator units where exhaust ventilation and noise levels meet both code standards and practical household considerations.


Request a generator consultation to evaluate your household power needs and discuss installation options for backup systems.

The Difference Between Portable and Whole House Systems

Portable generators require manual setup during outages, extension cords to power individual devices, and constant refueling from gasoline supplies that may be difficult to obtain during widespread storm damage. Whole house generators start automatically within seconds of detecting power loss, require no manual intervention, and draw fuel from permanent natural gas or propane connections that continue supplying generator operation throughout extended outages.


After installation, you notice that lights, refrigerators, furnaces, and well pumps continue operating during utility outages without the need to start equipment manually or ration power across a few critical devices. Transfer switches isolate your home from the utility grid during generator operation, preventing backfeed that could energize downed power lines and create hazards for utility workers restoring service in Tecumseh neighborhoods.


Properly planned installation accounts for generator placement that complies with setback requirements from property lines and structures, exhaust routing that directs combustion gases away from windows and air intakes, and fuel line sizing that supports continuous generator operation under full electrical load. Licensed and insured workmanship ensures that installations meet National Electrical Code standards and manufacturer specifications that affect both system performance and warranty coverage.

Answers to Frequent Service Questions

Generator decisions involve understanding power requirements, fuel options, and installation considerations that affect system cost and operation. Homeowners ask about sizing, transfer switch function, and maintenance needs before committing to whole house generator installation.

  • How do you determine what size generator a home needs?

    Load calculation adds the wattage required by essential circuits, accounting for startup surge from motors, and selects generator capacity that handles that load with margin for voltage stability.

  • What fuel source works best for whole house generators in Tecumseh?

    Natural gas provides unlimited runtime during extended outages if homes already have gas service, while propane works for properties without natural gas connections and requires tank sizing based on expected outage duration.

  • How quickly does a whole house generator start during a power failure?

    Transfer switches detect voltage loss within seconds and signal the generator to start, with most systems supplying power to essential circuits within ten to thirty seconds after utility failure.

  • What maintenance do whole house generators require?

    Annual service includes oil changes, filter replacement, battery inspection, and test runs under load to verify that equipment starts reliably and produces stable voltage when needed.

  • Can generators power entire homes or only selected circuits?

    Generator capacity determines whether all household circuits receive power or whether installation limits coverage to essential systems like heating, refrigeration, lighting, and water supply based on available kilowatt output.

Garner Heating And Cooling LLC provides knowledgeable generator installation service with attention to detail and licensed workmanship backed by more than 30 years of residential system experience. Call (517) 424-5669 to arrange a consultation for whole house generator planning and installation.