Output for Coil:Heating:Water consumption/rate

edit

I didn't know about this meter definition file, thanks!

How can I edit on which meter an object is? Image added to the original post

Look at example file 5ZoneAirCooled.idf and search for Meter:Custom. You will see how to connect component ENERGY use to a custom meter. See the docs.

Meter:Custom,
  MyGeneralLights,         !- Name
  Electricity,             !- Resource Type
  SPACE1-1 Lights 1,       !- Key Name 1
  Lights Electricity Energy,  !- Output Variable or Meter Name 1
  SPACE2-1 Lights 1,       !- Key Name 2
  Lights Electricity Energy,  !- Output Variable or Meter Name 2
  SPACE3-1 Lights 1,       !- Key Name 3
  Lights Electricity Energy,  !- Output Variable or Meter Name 3

FYI, you can look at ExampleFiles-ObjectsLink.html in the example files folder to see which example file uses which object you are trying to learn to use.

thanks again @rraustad. Ok, so I see a Meter:Custom can group different simulation outputs. However, which is the right output variable to request for an object that uses hot water coming from a Boiler plant?

I'm a bit confused about which variables can I see about these objects that consume hot water coming from a Boiler plant. But I need to know where the demand for Hot water comes from (which one of the HW Baseboard, or Water heating coil).

You have the individual heating coil or baseboard outputs (e.g., Heating coil/baseboard heating rate/energy) so you know which is on each timestep. Start with a Meter:Custom that monitors only 1 of your components. Then add slowly so you know what that result means. Look for energy report variables (J) in the rdd file to attach to one or more custom meters.