Exhibit 22.1

List of Guarantor Subsidiaries

The following subsidiaries of Lennox International Inc. (the “Company”) are guarantors with respect to the Company’s (1) 1.70% Notes due 2027 and (2) 5.50% Notes due 2028:

Guarantor			State or Other Jurisdiction of Formation
Advanced Distributor Products LLC			Delaware
Allied Air Enterprises LLC			Delaware
Duro Dyne Buyer, Inc.			Delaware
Duro Dyne National, Inc.			Delaware
Heatcraft Inc.			Delaware
Heatcraft Refrigeration Products LLC			Delaware
Heatcraft Technologies Inc.			Delaware
Lennox Global LLC			Delaware
Lennox Industries Inc.			Delaware
Lennox National Account Services Inc.			California
Lennox National Account Services, LLC			Florida
Lennox Procurement Company Inc.			Delaware
Lennox Services, LLC			Delaware
LGL Europe Holding Co.			Delaware