diff --git a/platformio.ini b/platformio.ini
index 27cd68d..e5785a5 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -8,6 +8,7 @@
 ; Please visit documentation for the other options and examples
 ; https://docs.platformio.org/page/projectconf.html
 
+; Ducted A/C Variant
 [env:satitm-ducted]
 platform = espressif32
 board = wt32-eth01
@@ -16,6 +17,7 @@ lib_deps = siwats/ESPMegaPROR3@^2.8.0
 monitor_speed = 115200
 build_flags = -DCORE_DEBUG_LEVEL=0 -DSW_VERSION='"3.0.1-duct"' -DBOARD_MODEL='"ESPMegaPRO R3.3c"' -DAC_TYPE=AC_TYPE_DUCTED
 
+; Ceiling A/C Variant (and newer ducted models)
 [env:satitm-ceiling]
 platform = espressif32
 board = wt32-eth01