Select the address above to copy it into your email app. Messages are read by Lee Palmer, who runs the site. Replies usually take a few days.
What to include
- For a correction: the page address and the sentence or figure you think is wrong. A link to a source helps.
- For a calculator problem: the numbers you entered, the result you saw and the result you expected, plus your browser and device.
- For a suggestion: the question you were trying to answer when you arrived.
What we cannot help with
- We cannot recommend a specific product or model for your home.
- We cannot give electrical installation advice. Please contact a licensed electrician.
- In an emergency, call your local emergency number. To report an outage or a downed line, contact your electricity utility directly.
Advertising and partnerships
Use the same address. Sponsored articles and paid product placements are not accepted.