Does Wiser work with combi-boilers and conventional boilers? Follow Yes, there is a Wiser system to suit both types of boiler – try our product selector to find the right one for you. Related articles Is Wiser compatible with all boilers? Do I need an OpenTherm boiler to use Wiser Heat? I have a wired thermostat connected to my boiler - What do I do? How To Commission Your Wiser Multi-zone Kit Is Wiser compatible with Gravity-Fed systems? Comments 0 comments Please sign in to leave a comment.