Power outages are becoming more common in many areas. Storms, heat waves, and old power lines can leave your home without electricity for hours or even days. Because of this, more homeowners are looking at whole-house backup generators.
Two big names you’ll see again and again are Generac and Kohler. Both brands are popular and trusted in the generator industry. In this guide, we’ll compare them in simple language so you can decide which is better for your home and budget.
Brand Overviews: Kohler and Generac
Kohler: Company Background
Website: kohlerhomeenergy.rehlko.com
Kohler is a long‑standing company that has been around for over 100 years. Many people know Kohler for bathroom and kitchen products, but they also build engines and power systems. Their generators are known for:
- Strong build quality
- Reliable engines
- Long lifespan
Kohler often appeals to people who value durability and don’t mind paying a bit more for heavy‑duty equipment.
Generac: Company Background
Website: generac.com
Generac is one of the largest names in home standby generators. They focus strongly on backup power and have a wide range of products. Generac is known for:
- Very large market share in home generators
- Many model options and sizes
- Good availability at local dealers and big-box stores
Many electricians and contractors recommend Generac because they work with these units often and can get parts and support easily.
Product Lineup Comparison
Types of Generators
Both Kohler and Generac offer:
- Standby generators for homes and small businesses (main focus of this article)
- Portable generators (for camping, small jobs, temporary backup)
- Inverter generators (quieter, cleaner power, often portable)
For whole‑house backup, you’ll be looking mainly at standby generators that start automatically when power goes out.
Popular Residential Generator Models
Typical home sizes often use:
- Kohler standby units in the 10–24 kW range
- Generac standby units in the 10–26 kW range
Both brands have models sized for:
- Small homes (running key circuits only)
- Medium and large homes (running most or all appliances, AC, well pump, etc.)
Your installer will match the model to your home’s power needs.
Kohler vs Generac Generators: Head-to-Head Comparison
In our Generac vs Kohler comparison, we’ll look at key factors to help you decide. Both Kohler and Generac offer excellent products, but with different strengths.
Build Quality and Durability
Kohler
- Often seen as more rugged and heavy‑duty.
- Many contractors and users say Kohler units feel more solid, with thicker components and robust enclosures.
- Frequently chosen for situations where the generator may run long hours and carry heavy loads regularly.
Generac
- Build quality is good but more “consumer‑grade” in many models.
- Designed strongly around the residential market, with a focus on cost‑effectiveness.
- Still durable, but some users feel it’s less “industrial” than Kohler.
Power Output and Load Handling
Kohler
- Known for strong performance under heavy starting loads, such as large AC units and well pumps.
- Often praised for tight voltage and frequency control, which is helpful for sensitive electronics. This stable power is key to a reliable home during outages.
Generac
- Also handles residential loads well and is designed for home usage patterns.
- Very capable for typical home loads and common appliance setups.
Noise Levels
Kohler
- Noise levels are competitive but may be slightly higher or similar depending on the model.
- Often uses robust housings that control noise but focus more on durability than extreme quiet.
Generac
- Some models are designed with noise reduction in mind for neighborhoods and HOAs.
- In many head‑to‑head comparisons, Generac units can be slightly quieter in some sizes, though not always.
Fuel Consumption and Efficiency
Kohler
- Fuel consumption is typically very efficient for its class, especially under heavy load.
- Engine design focuses on performance and durability, which may shine when running near capacity.
Generac
- Also offers competitive fuel use, especially at medium loads where most homes operate.
- Often optimized for typical home patterns, not constant full‑load industrial use.
Installation and Service Network
Kohler
- Has a dealer network, but in many areas it is smaller and more specialized.
- You might find fewer installers, but those who do Kohler often handle more complex or high‑end jobs.
Generac
- Has a very large dealer and installer network in many regions.
- Easier to find multiple local quotes and service techs experienced with Generac.
Maintenance Needs
Kohler
- Maintenance intervals are similar, but parts may be less common on shelves and more often ordered.
- Techs familiar with Kohler often handle commercial systems as well, which can be a plus for complex jobs, but may cost more per hour.
Generac
- Parts are often easy to get quickly due to high volume and widespread use.
- Many techs and electricians know Generac units well, which can mean faster diagnosis and cheaper labor.
Warranty and Support Policies
Kohler
- Often offers solid warranties that match its premium position, providing a comprehensive warranty that gives peace of mind.
- Emphasizes long‑term reliability, and some owners feel Kohler is stricter but more “serious” about technical standards.
Generac
- Offers competitive warranties aimed at the residential market.
- Common add‑on extended warranties are often marketed in bundles or promotions.
Price: Upfront and Long‑Term
Kohler
- Typically higher upfront cost for a similar kW rating.
- You may pay more for the generator + ATS + install, especially at higher kW levels.
Generac
- Usually cheaper per kW in the residential space.
- Package deals and promotions are common, lowering the initial cost.
Which Brand Is Better for You?
Questions to Ask Yourself
Before you choose, think about:
- What is my budget?
- How big is my home and what do I want to run during an outage?
- How often do I lose power and for how long?
- Which brand has better local support where I live?
Best‑For Scenarios
Kohler may be better if:
- You value premium build quality and don’t mind a higher upfront price.
- You live in an area with good Kohler dealer support.
- You want a generator that can handle long, heavy‑load runs regularly.
Generac may be better if:
- You want a reliable standby generator at a lower cost.
- You live in an area where Generac dealers and parts are very common.
- You like having many model options to choose from.
A professional generator installation by a qualified technician is crucial for reliable backup power, whether you choose Kohler or Generac for your home or business.
Expert Tips for Choosing and Sizing a Generator
- Don’t guess on size. Have a professional do a load calculation based on your main panel and the appliances you want to run.
- Decide if you want whole‑house coverage or just essential circuits (fridge, lights, heat/AC, well pump, medical equipment).
- Ask for two or three quotes, possibly with both Kohler and Generac options.
- Make sure quotes include permits, pad, gas work, ATS, and all electrical work, not just the generator.
A well‑sized, smaller unit is often better than an oversized unit that never gets fully loaded.
Frequently Asked Questions(FAQs)
Are Kohler generators quieter than Generac?
Generac models sometimes rank as quieter in comparisons, but always check the specific decibel rating.
What technology does Generac offer?
Generac includes features like mobile link™ remote monitoring and true power™ technology for electronics protection.
How long do Kohler and Generac generators last?
With proper maintenance, both can last 10–20 years or more, depending on how often they run and how well they are serviced. Regular maintenance is key to keeping your home protected for years.
Can I switch brands if I already have an ATS?
Sometimes you can use an existing ATS with a new brand, but not always. It depends on the type of switch, age, and compatibility. Your installer will need to check this.
Do both brands work well with propane in cold weather?
Yes, both can work with propane in cold climates, but your gas line and tank must be sized correctly. In very cold areas, tank placement and fuel supply planning are important.
Conclusion
Ultimately, choosing the right generator brings peace of mind against power outages. Whether you prioritize lower upfront cost with Generac or the robust build of Kohler, ensure you get a system that provides stable power and reliable performance for your needs.
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