Basic Honeywell thermostats are available for purchase through major retailers, such as Target and Lowe's, as well as through the Honeywell website. The most basic models made by the company are non-programmable, and they typically cost less than $30 as of early 2015.
Basic Honeywell thermostats include both digital and analog models. Some units are intended for use just with heating systems, while others are designed to work with both heating and cooling systems.
Honeywell thermostats with more features include programmable models and thermostats with backlit LED display panels. Some more complex models let users remotely adjust the temperature or change the programmed parameters using a computer, smartphone or tablet.