Plan around the system, then compare brands
A useful brand comparison identifies the exact model, fuel rating, transfer arrangement, load-management options, maintenance requirements and support route. Brand recognition does not tell you which circuits can run together at your property.
| Brand planning page | Primary questions |
|---|---|
| Generac | Model rating, transfer scope and local provider authorization |
| KOHLER | Exact product documents, installation scope and support |
| Cummins | QuietConnect model requirements and qualified local support |
Use current documents
Ask for the proposed model’s installation, operation, maintenance and warranty documents. A warranty advertised for one product or promotion may not apply to another. Do not assume a provider is an authorized dealer from a brand logo alone; verify through the manufacturer.
Start with the load worksheet and quote checklist. Compare three complete scopes rather than three enclosure pictures.



