Contact and corrections
We read every message. The fastest way to reach us is email.
Report an error
Include the page address, the sentence or number you think is wrong, and, if you have one, a source. We check every report against the original source and update the page when a correction is needed.
Suggest a guide or calculator
Tell us the question you could not find a good answer to, what you noticed, and the appliance or system involved. Many of our guides start this way.
Repair questions
We cannot diagnose individual appliances by email or recommend specific local contractors. For urgent problems involving gas, smoke, sparking or flooding, contact your utility, emergency services or a licensed professional right away.
Advertising and partnerships
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