SMITH A O CORP - Director's Dealing 2007

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: SMITH A O CORP (AOS)
CIK: 0000091142
Period of Report: 2007-01-25

Reporting Person: ROMOSER W DAVID (Senior VP, Gen. Counsel & Sec)

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2007-01-25	Common Stock	S	200	$38.311	Disposed	56487	Direct
2007-01-25	Common Stock	S	200	$38.32	Disposed	56287	Direct
2007-01-25	Common Stock	S	200	$38.33	Disposed	56087	Direct
2007-01-25	Common Stock	S	800	$38.34	Disposed	55287	Direct
2007-01-25	Common Stock	S	1700	$38.35	Disposed	53587	Direct
2007-01-25	Common Stock	S	200	$38.37	Disposed	53387	Direct
2007-01-25	Common Stock	S	200	$38.39	Disposed	53187	Direct
2007-01-25	Common Stock	S	2600	$38.40	Disposed	50587	Direct
2007-01-25	Common Stock	S	300	$38.41	Disposed	50287	Direct
2007-01-25	Common Stock	S	100	$38.42	Disposed	50187	Direct
2007-01-25	Common Stock	S	200	$38.44	Disposed	49987	Direct
2007-01-25	Common Stock	S	700	$38.45	Disposed	49287	Direct
2007-01-25	Common Stock	S	200	$38.50	Disposed	49087	Direct
2007-01-25	Common Stock	S	950	$38.53	Disposed	48137	Direct
2007-01-25	Common Stock	S	100	$38.55	Disposed	48037	Direct

F1: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on October 10, 2006.