Window fan on different temps

Setup, Configuration and Use Scripts & Rules
1

I can not seem to get how to do a greater than. Will someone please help me?
Thanks

 rule " window fan on temp
when 	 Item node4temperature	changed
then

if (node4temperature.state as DecimalType) => (node10temperature.state as DecimalType)
{
postUpdate(Insteon1, ON)
sendCommand(Insteon1, ON)
}
end

2

I know this might be silly but try it like >=

3

Got it.

var Number TempNode10Temp

rule " window fan on when cool outside diff +2"

when Time cron “5 0/15 * * * ?” // on 15 minutes
then
(TempNode10Temp = node10temperature.state as DecimalType)
(TempNode10Temp = TempNode10Temp +2)
if (node4temperature.state as DecimalType <= node10temperature.state as DecimalType)
{
postUpdate(x10SwitchWindowFan, ON)
sendCommand(x10SwitchWindowFan, ON)
}
else {
postUpdate(x10SwitchWindowFan, OFF)
sendCommand(x10SwitchWindowFan, OFF)
}
end