Temperature settings and adjustable thermostats are present on most space heaters from Heat Storm. However, most of these devices come along with a range of 40 and 99 when it comes to the lowest temperature setting. This is the lowest heat setting which is present by default. If you want to alter this heat setting, you can quickly try out an adjustable thermostat and install it accordingly. Some heaters may also come with a default temperature of 45 F.