Also, @kennethwmartin ,
Rhino has really good built-in capabilities for changing units systems. You can build your model in feet and then, once your geometry is finalized, just go to Options > Units and change the units of your model to meters. When you say “yes” to the question that pops up to scale your model, it will automatically change everything that you made to have the same dimensions but in meters.
You can also use the same process in reverse to restore your model to feet (to make it easy to edit again).
Once you have geometry in meters, you can then build your Honeybee model or (if you already have a GH script up that references the geometry, just right-click on the canvass and select “recompute” to have your geometry and Honeybee update to the new units system).
I know this creates an extra 30 seconds each time you want to switch between geometry generation and energy model creation. Personally, I have done this switch enough times to annoy me such that I think I’ll add support for Rhino geometry in feet/inches in the next stable release. For now, you’ll just need to bear with the extra 30 seconds to get the workflow that you want, though, which should be small in comparison to all of the time you save through automation in a visual scripting interface.