Customers can purchase Trane furnace humidifiers from authorized dealers across the United States. Visitors to the company website can click on a state, or choose the District of Columbia, on the website's dealer locator option. Trane manufactures three add-on humidifiers that fit the company's furnaces, as of March 2015.
Users can click on a state and peruse a list of cities with authorized Trane dealers that appears on the company website. Customers then choose a city to find the names, addresses and phone numbers of authorized Trane dealers. Some companies offer incentives for purchase such as financing to help pay for a system.