diff --git a/code/FEA/FEA_gas_mixture.dm b/code/FEA/FEA_gas_mixture.dm
index ee7592b975..9d609e673e 100644
--- a/code/FEA/FEA_gas_mixture.dm
+++ b/code/FEA/FEA_gas_mixture.dm
@@ -546,12 +546,6 @@ What are the archived variables for?
 		var/old_self_heat_capacity = 0
 		var/old_sharer_heat_capacity = 0
 
-
-		//These two variables have been commented out. The author did not leave documentation on what they were supposed to be for. -Rockdtben
-		//These two variables are only changed and do not exist outside of this proc. -Rockdtben
-		//var/heat_self_to_sharer = 0
-		//var/heat_sharer_to_self = 0
-
 		var/heat_capacity_self_to_sharer = 0
 		var/heat_capacity_sharer_to_self = 0
 
@@ -561,28 +555,22 @@ What are the archived variables for?
 			if(delta_air)
 				var/air_heat_capacity = SPECIFIC_HEAT_AIR*delta_air
 				if(delta_air > 0)
-					//heat_self_to_sharer += air_heat_capacity*temperature_archived
 					heat_capacity_self_to_sharer += air_heat_capacity
 				else
-					//heat_sharer_to_self -= air_heat_capacity*sharer.temperature_archived
 					heat_capacity_sharer_to_self -= air_heat_capacity
 
 			if(delta_carbon_dioxide)
 				var/carbon_dioxide_heat_capacity = SPECIFIC_HEAT_CDO*delta_carbon_dioxide
 				if(delta_carbon_dioxide > 0)
-					//heat_self_to_sharer += carbon_dioxide_heat_capacity*temperature_archived
 					heat_capacity_self_to_sharer += carbon_dioxide_heat_capacity
 				else
-					//heat_sharer_to_self -= carbon_dioxide_heat_capacity*sharer.temperature_archived
 					heat_capacity_sharer_to_self -= carbon_dioxide_heat_capacity
 
 			if(delta_toxins)
 				var/toxins_heat_capacity = SPECIFIC_HEAT_TOXIN*delta_toxins
 				if(delta_toxins > 0)
-					//heat_self_to_sharer += toxins_heat_capacity*temperature_archived
 					heat_capacity_self_to_sharer += toxins_heat_capacity
 				else
-					//heat_sharer_to_self -= toxins_heat_capacity*sharer.temperature_archived
 					heat_capacity_sharer_to_self -= toxins_heat_capacity
 
 			old_self_heat_capacity = heat_capacity()*group_multiplier
@@ -624,10 +612,8 @@ What are the archived variables for?
 				if(delta)
 					var/individual_heat_capacity = trace_gas.specific_heat*delta
 					if(delta > 0)
-						//heat_self_to_sharer += individual_heat_capacity*temperature_archived
 						heat_capacity_self_to_sharer += individual_heat_capacity
 					else
-						//heat_sharer_to_self -= individual_heat_capacity*sharer.temperature_archived
 						heat_capacity_sharer_to_self -= individual_heat_capacity
 
 				moved_moles += delta
@@ -652,7 +638,6 @@ What are the archived variables for?
 
 					//Guaranteed transfer from sharer to self
 					var/individual_heat_capacity = trace_gas.specific_heat*delta
-					//heat_sharer_to_self += individual_heat_capacity*sharer.temperature_archived
 					heat_capacity_sharer_to_self += individual_heat_capacity
 
 					moved_moles += -delta
diff --git a/code/game/objects/items/devices/PDA/cart.dm b/code/game/objects/items/devices/PDA/cart.dm
index 00e9424428..eb3e723a23 100644
--- a/code/game/objects/items/devices/PDA/cart.dm
+++ b/code/game/objects/items/devices/PDA/cart.dm
@@ -282,7 +282,6 @@ Code:
 			if (43) //Muskets' and Rockdtben's power monitor :D
 				menu = "<h4><img src=pda_power.png> Power Monitors - Please select one</h4><BR>"
 				powmonitor = null
-				powermonitors = null
 				powermonitors = list()
 				var/powercount = 0