Carrier Infinity thermostats can be purchased online through mass retailers, such as Amazon, as well as through auction sites, such as eBay. Online marketplaces, such as Bonanza, also feature Carrier Infinity thermostats sold by private sellers and small businesses.
Listings on Amazon contain pictures of the item being sold, as well as a detailed description of features and options. Each listing also contains a comprehensive review section comprised of feedback provided by Amazon site users. While Amazon does not require users to have purchased the product in order to write a review for it, it does add a note to any reviews written by a user who purchased the product through Amazon. Listings also contain a question and answer section, wherein site users are able to obtain information about specific details not directly covered by the product description.
Any returns or issues with a specific product purchased through eBay are handled by the seller and not the company itself. To help users avoid potential scams and other issues, the site contains a detailed seller rating system comprised of feedback from each seller's past customers. Customers typically cover any issues they encounter with a seller in this section, such as false descriptions or poor customer service.