RICHARDSON, Texas — Lennox International Inc. has signed a letter of intent to purchase essentially all assets of the Air Conditioning and Heating Division of The Ducane Company.

Ducane has begun a search to relocate its gas grill production, which is not part of the Lennox transaction. Until the relocation, Ducane will lease a portion of its Blackville, S.C. facility and continue to produce barbecue grills under the control of the Ducate family.

Ducane, which has been producing gas- and oil-fired furnaces for more than 53 years, recently introduced a line of air conditioning products.

Lennox said it intends to continue Ducane’s heating-cooling market growth “without altering their method of marketing,” said Lennox board chairman John Norris.

“This industry needs a distinctively different brand of product and Ducane effectively fills that need.” John Ducate Jr., president of Ducane, said the agreement would “provide the financial support to continue expanding the market for Ducane heating and cooling products.”