Contact

We haven't set up an email address or contact form, and we'd rather tell you that than show one nobody reads. When a way to reach us is available, it will be listed here.

Looking for an answer?

• For how results are calculated, see How It Works.
• For common questions, see the FAQ on the calculator page.
• For your specific generator, your owner's manual or the manufacturer's support line is the best source.

Emergencies

If you suspect carbon monoxide poisoning — headache, dizziness, nausea, or a CO alarm — get to fresh air immediately and call 911. For power outages, contact your electric utility.