Terms of Use
Last updated September 24, 2026
Estimates, not guarantees
Our calculators give planning estimates based on published specifications and typical appliance data. Real results depend on your equipment, its age and condition, temperature and how you use it. Don't rely on our estimates for life-support or other critical medical equipment.
No professional advice
Nothing on this site is electrical, engineering, medical or safety advice. Follow your equipment manufacturers' instructions. Connecting a power source to home wiring requires a transfer switch or inlet installed by a licensed electrician.
Accuracy
We work to keep specs accurate and cite our sources, but manufacturers change specifications and mistakes happen. Check the manufacturer's current information before you buy.
Links
We link to third-party sites, some through affiliate links. We aren't responsible for their content, pricing or products.
Use of the site
You may use the calculators freely for personal and commercial planning. Please don't copy the site's content or data wholesale.