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Filter calculator, guide, and reference pages about generator watts, running vs surge, and 1800 / 3200 / 6800 W class ladders.

Tools

Interactive running + surge matcher.

Guides

Guide covering matching, outdoor/CO rules, and NO_MATCH.

Reference

Comparison of inverter class ceilings.

Reference

Example watt checks and class results.

Guides

Full listing of GenSize pages.

Tools

Homepage calculator for quick generator sizing.