SMITH A O CORP — Director's Dealing 2008

Jan 4, 2008

SEC Form 5 — Annual Statement of Changes in Beneficial Ownership

Issuer: SMITH A O CORP (AOS)
CIK: 0000091142
Period of Report: 2007-12-31

Reporting Person: SMITH BRUCE M (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2007-12-31	Common Stock	G	171	—	Disposed	14797	Indirect

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2007-12-31	Class A Common Stock	$0	G	882	Disposed		Common Stock (882)	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	2649	Indirect

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Phantom Stock	$0		Common Stock (0)	4554	Direct

Footnotes

F1: Shares deferred under the A. O. Smith Corporation Directors' Deferred Compensation Plan.

F2: Dispositions reported above represent proportionate interest in gift of 363 shares of Smith Investment Company ("SICO") common stock.

F3: Represents holdings of SICO common Stock.

F4: The Plan permits the participant/recipient to defer receipt of the award, and Mr. Smith has made a deferral.

F5: 1 for 1

F6: Convertible at any time.

F7: None

F8: No change