As of 2015, consumers can purchase 24-volt thermostats on websites such as eComfort.com and SupplyHouse.com. Both retailers offer several types and models of 24-volt thermostats.
Visitors to the eComfort.com website can order 24-volt thermostats made by Danfoss, White-Rodgers, Watts Radiant or Suntouch. Thermostats are available in both horizontal and vertical designs, and in both digital and mechanical models. Consumers can purchase 24-volt thermostats from eComfort.com that are compatible with heating only or with heating and cooling equipment. SupplyHouse.com sells 24-volt thermostats that are either horizontal or vertical in design, and in both mechanical and digital models. Programmable and non-programmable 24-volt thermostats are also available at SupplyHouse.com.