When to set warmness pump to Emergency Heat? ...

How do i winterize underground sprinkling system?
Answers:    You should try to never do it because it is very expensive to operate that track. If the outdoor unit is broken or frozen up or the outside heat falls below the operational parameter of the unit is the just time you want to use emergency heat.
Why would my toilet hold no dampen coming...
The emergency roast setting is for when the outdoor section of the bake pump is not operational. For more info on the systems operation, check out the warmness pump page at my source.