As of 2015, heating, venting and air conditioning units can be purchased online through manufacturer websites, such as Rheem and Lennox, or through online outlets such as AC Wholesalers, AC4Life and AC Direct. Aside from HVAC units, smaller heating and cooling units are also available from online stores.
Company websites also offer access to local distributors and dealers that offer both products and installation service. Products available from online stores can come from a large variety of brands and fit every size requirement. Aside from machines and HVAC systems, online stores also sell accessories related to HVAC systems, such as thermostats and wiring.