Kohler 20RCAL-200SELS 20kW Aluminum Standby Generator System

Kohler is one of the two major names in home standby generators, and their 20kW aluminum-housed standby unit is built to withstand harsh weather environments. The aluminum enclosure resists rust and corrosion better than steel alternatives over a decade of outdoor exposure — a genuine long-term advantage in humid or coastal climates.

Homeowners in coastal areas, humid climates, or any environment where long-term weather exposure would degrade a steel-housed unit will find Kohler’s aluminum construction worth the investment. In humid or salty coastal environments, steel generator enclosures can show significant rust within 5–7 years. Kohler’s aluminum housing is essentially immune to surface corrosion, meaning the unit looks and performs as well in year 15 as at installation.

• 20kW output — whole-home coverage for most properties
• Aluminum enclosure — weather and corrosion resistant, ideal for coastal and humid environments
• 200A automatic transfer switch included
• Runs on natural gas or liquid propane — no fuel management required
• Kohler’s proprietary engine — purpose-built for standby generator duty cycles
• Automatic operation with weekly self-test