In March, Noland Co., a plumbing and heating and air conditioning distributor, opened its sixth new branch in 2006, bringing its total to 109 branches in 13 states. The branch, in Laurel, Miss., is its fifth in Mississippi. It will provide hvac contractors with delivery service, counter sales, and pickup. It stocks Ruud heating and air conditioning equipment, parts, and a full line of accessories, ducting, and tools. Noland is a wholly owned subsidiary of WinWholesale Inc.