Putting a thermostat directly above a heater is ok but not ideal.
Mounting thermostat exterior wall.
It was really hard to keep up with manually adjusting the thermostat offset.
Mount the thermostat base by gently pushing the excess wire back into the wall opening and plugging the hole with a fire resistant material.
How high you mount your thermostat on the wall matters.
A good rule of thumb is to mount it 52 to 60 inches off of the floor.
The thermostat will think that this unusually cold or hot area represents the rest of the home and will.
During the winter this caused a 5 degree difference when the temperature dropped.
That s because when the heater turns off residual heat from the heater will escape and influence the temperature the thermostat senses.
One other thing to consider.
Tighten the screws securely.
Our thermostat is mounted on a wall that is opposite our garage.
Fiberglass insulation is great for preventing drafts from affecting thermostat operation.
Mount the control unit to the base using the screws included with your thermostat.
What happens in the specific area being considered for thermostat placement has to be thought out.
Exterior walls are also a no go because they are often cooler than other walls in the home.
Once i installed this plate behind the thermostat i had no more issues.
How to choose a thermostat for your home.
It s fine but not great to install a thermostat above the heater placing a wall thermostat directly above a wall heater is not ideal.