Which template should i use if I want to create a message with the property address? None of the items on the drop down for template email seem appropriate.
Once I have the template I will create a trigger to send myself an email 2 days before the guest checks in if the booking is tagged as 'pool heater' so I remember to start heating the pool. Creating the trigger part seems straight forward just struggling with the template creation part. Which I am sure I am over thinking, thanks for any help in advance!
You'd normally use the Booking type template, since all such messages will related directly to a specific booking.
The property address is indeed an attribute of each property - but, since by definition each booking is directly connected to a specific booking, the property field codes will still work just fine in a booking type message.
https://www.ownerrez.com/support/articles/field-codes#property