Individuals who move home a lot and those who rent are not likely to benefit from installing smart thermostats; you’re unlikely to take your smart thermostats with you each time you move home. You can expect to pay up to 10x as much as you would for a traditional thermostat. If you are uncomfortable with wiring, installing a Smart Thermostat may not be something you should take on; unfortunately, professional installation can be costly. (But it is safe) Existing heating and cooling systems could encounter compatibility issues.