diff --git a/_maps/map_files/MetaStation/z3.dmm b/_maps/map_files/MetaStation/z3.dmm
index c2a11075ee8..c1e20ddacaa 100644
--- a/_maps/map_files/MetaStation/z3.dmm
+++ b/_maps/map_files/MetaStation/z3.dmm
@@ -1060,6 +1060,16 @@
 /obj/structure/girder,
 /turf/simulated/floor/plating/airless,
 /area/AIsattele)
+"gw" = (
+/obj/machinery/atmospherics/unary/portables_connector{
+	dir = 1
+	},
+/turf/simulated/floor/plating/airless,
+/area/AIsattele)
+"AV" = (
+/obj/machinery/atmospherics/unary/tank/oxygen_agent_b,
+/turf/simulated/floor/plating/airless,
+/area/AIsattele)
 
 (1,1,1) = {"
 aa
@@ -55476,8 +55486,8 @@ aa
 ay
 em
 em
-er
-eB
+AV
+gw
 eG
 em
 em
diff --git a/_maps/map_files/cyberiad/z3.dmm b/_maps/map_files/cyberiad/z3.dmm
index b517ac3154b..31314bf545a 100644
--- a/_maps/map_files/cyberiad/z3.dmm
+++ b/_maps/map_files/cyberiad/z3.dmm
@@ -4065,6 +4065,16 @@
 /obj/structure/girder,
 /turf/simulated/floor/plating/airless,
 /area/AIsattele)
+"we" = (
+/obj/machinery/atmospherics/unary/portables_connector{
+	dir = 1
+	},
+/turf/simulated/floor/plating/airless,
+/area/AIsattele)
+"LU" = (
+/obj/machinery/atmospherics/unary/tank/oxygen_agent_b,
+/turf/simulated/floor/plating/airless,
+/area/AIsattele)
 
 (1,1,1) = {"
 aa
@@ -58481,8 +58491,8 @@ aa
 aT
 iF
 iF
-iK
-iT
+LU
+we
 iW
 iF
 iF
diff --git a/code/ATMOSPHERICS/components/unary_devices/tank.dm b/code/ATMOSPHERICS/components/unary_devices/tank.dm
index bf0c3c8e06d..deb194af6e7 100644
--- a/code/ATMOSPHERICS/components/unary_devices/tank.dm
+++ b/code/ATMOSPHERICS/components/unary_devices/tank.dm
@@ -16,7 +16,7 @@
 		if(!istype(T))
 			return
 		add_underlay(T, node, dir)
-		
+
 /obj/machinery/atmospherics/unary/tank/attackby(obj/item/W, mob/user, params)
 	if(istype(W, /obj/item/analyzer))
 		atmosanalyzer_scan(air_contents, user)
@@ -94,4 +94,18 @@
 	trace_gas.moles = (25*ONE_ATMOSPHERE)*(air_contents.volume)/(R_IDEAL_GAS_EQUATION*air_contents.temperature)
 
 	air_contents.trace_gases += trace_gas
-	
\ No newline at end of file
+
+/obj/machinery/atmospherics/unary/tank/oxygen_agent_b
+	name = "Unidentified Gas Tank"
+	desc = "A large vessel containing an unknown pressurized gas."
+	icon_state = "agent_b_map"
+
+/obj/machinery/atmospherics/unary/tank/oxygen_agent_b/New()
+	..()
+	icon_state = "agent_b"
+	air_contents.volume = volume
+	air_contents.temperature = T20C
+
+	var/datum/gas/oxygen_agent_b/trace_gas = new
+	trace_gas.moles = (50 * ONE_ATMOSPHERE) * (air_contents.volume) / (R_IDEAL_GAS_EQUATION * air_contents.temperature)
+	air_contents.trace_gases += trace_gas
\ No newline at end of file
diff --git a/code/datums/gas_mixture.dm b/code/datums/gas_mixture.dm
index a10c3a8358f..7a7571999cf 100644
--- a/code/datums/gas_mixture.dm
+++ b/code/datums/gas_mixture.dm
@@ -117,7 +117,7 @@ What are the archived variables for?
 
 					trace_gas.moles -= reaction_rate*0.05
 
-					temperature -= (reaction_rate*20000)/heat_capacity()
+					temperature += (reaction_rate*20000)/heat_capacity()
 
 					reacting = 1
 
diff --git a/icons/atmos/tank.dmi b/icons/atmos/tank.dmi
index bf98899fb8e..3a6e2031cbc 100644
Binary files a/icons/atmos/tank.dmi and b/icons/atmos/tank.dmi differ