diff --git a/code/__DEFINES/atmospherics.dm b/code/__DEFINES/atmospherics.dm
index 696af2ffe6e..fc7255140bf 100644
--- a/code/__DEFINES/atmospherics.dm
+++ b/code/__DEFINES/atmospherics.dm
@@ -142,6 +142,14 @@
 #define REACTING 1
 #define STOP_REACTIONS 2
 
+//Fusion
+///Max amount of radiation that can be emitted per reaction cycle
+#define FUSION_RAD_MAX 5000
+///Maximum instability before the reaction goes endothermic
+#define FUSION_INSTABILITY_ENDOTHERMALITY 4
+///Maximum reachable fusion temperature
+#define FUSION_MAXIMUM_TEMPERATURE 1e8
+
 // Pressure limits.
 /// This determins at what pressure the ultra-high pressure red icon is displayed. (This one is set as a constant)
 #define HAZARD_HIGH_PRESSURE 550
diff --git a/code/modules/atmospherics/machinery/components/binary_devices/thermomachine.dm b/code/modules/atmospherics/machinery/components/binary_devices/thermomachine.dm
index f2a4ca01855..557aa1e9dd6 100644
--- a/code/modules/atmospherics/machinery/components/binary_devices/thermomachine.dm
+++ b/code/modules/atmospherics/machinery/components/binary_devices/thermomachine.dm
@@ -1,3 +1,5 @@
+#define THERMOMACHINE_SAFE_TEMPERATURE 500000
+
 /obj/machinery/atmospherics/components/binary/thermomachine
 	icon = 'icons/obj/atmospherics/components/thermomachine.dmi'
 	icon_state = "freezer"
@@ -33,6 +35,8 @@
 	var/use_enviroment_heat = FALSE
 	var/skipping_work = FALSE
 	var/auto_thermal_regulator = FALSE
+	var/safeties = TRUE
+	var/lastwarning
 	var/color_index = 1
 
 /obj/machinery/atmospherics/components/binary/thermomachine/Initialize()
@@ -104,6 +108,8 @@
 
 /obj/machinery/atmospherics/components/binary/thermomachine/examine(mob/user)
 	. = ..()
+	if(obj_flags & EMAGGED)
+		. += "<span class='notice'>Something seems wrong with [src]'s thermal safeties.</span>"
 	. += "<span class='notice'>With the panel open:</span>"
 	. += "<span class='notice'>-use a wrench with left-click to rotate [src] and right-click to unanchor it.</span>"
 	. += "<span class='notice'>-use a multitool with left-click to change the piping layer and right-click to change the piping color.</span>"
@@ -156,13 +162,25 @@
 	var/temperature_difference = 0
 	var/skip_tick = TRUE
 	if(!use_enviroment_heat && main_port.total_moles() > 0.01)
-		if(cooling && thermal_exchange_port.total_moles() > 0.01 && nodes[2])
+		if(cooling && thermal_exchange_port.total_moles() > 0.01 && nodes[2] && (thermal_exchange_port.temperature <= THERMOMACHINE_SAFE_TEMPERATURE || !safeties))
 			thermal_exchange_port.temperature = max(thermal_exchange_port.temperature + heat_amount / thermal_heat_capacity + motor_heat / thermal_heat_capacity, TCMB)
 		else if(cooling && (!thermal_exchange_port.total_moles() || !nodes[2]))
 			skipping_work = skip_tick
 			update_appearance()
 			update_parents()
 			return
+		if(thermal_exchange_port.temperature > THERMOMACHINE_SAFE_TEMPERATURE && safeties)
+			on = FALSE
+			visible_message("<span class='warning'>The thermal exchange port's temperature has reached critical levels, shutting down...</span>")
+			update_appearance()
+			return
+		else if(thermal_exchange_port.temperature > THERMOMACHINE_SAFE_TEMPERATURE && !safeties)
+			if((REALTIMEOFDAY - lastwarning) / 5 >= WARNING_DELAY)
+				lastwarning = REALTIMEOFDAY
+				visible_message("<span class='warning'>The thermal exchange port's temperature has reached critical levels!</span>")
+				if(check_explosion(thermal_exchange_port.temperature))
+					explode()
+					return PROCESS_KILL //we dying anyway, so let's stop processing
 		temperature_difference = thermal_exchange_port.temperature - main_port.temperature
 		temperature_difference = cooling ? temperature_difference : 0
 		if(temperature_difference > 0)
@@ -171,7 +189,7 @@
 		skip_tick = FALSE
 	if(use_enviroment_heat && main_port.total_moles() > 0.01)
 		var/enviroment_efficiency = 1
-		if(cooling && enviroment.total_moles() > 0.01)
+		if(cooling && enviroment.total_moles() > 0.01 && (thermal_exchange_port.temperature <= THERMOMACHINE_SAFE_TEMPERATURE || !safeties))
 			var/enviroment_heat_capacity = enviroment.heat_capacity()
 			if(enviroment.total_moles())
 				enviroment_efficiency = clamp(log(1.55, enviroment.total_moles()) * 0.15, 0.65, 1)
@@ -182,6 +200,18 @@
 			update_appearance()
 			update_parents()
 			return
+		if(enviroment.temperature > THERMOMACHINE_SAFE_TEMPERATURE && safeties)
+			on = FALSE
+			visible_message("<span class='warning'>The enviroment's temperature has reached critical levels, shutting down...</span>")
+			update_appearance()
+			return
+		else if(enviroment.temperature > THERMOMACHINE_SAFE_TEMPERATURE && !safeties)
+			if((REALTIMEOFDAY - lastwarning) / 5 >= WARNING_DELAY)
+				lastwarning = REALTIMEOFDAY
+				visible_message("<span class='warning'>The enviroment's temperature has reached critical levels!</span>")
+				if(check_explosion(enviroment.temperature))
+					explode()
+					return PROCESS_KILL //we dying anyway, so let's stop processing
 		temperature_difference = enviroment.temperature - main_port.temperature
 		temperature_difference = cooling ? temperature_difference : 0
 		if(temperature_difference > 0)
@@ -297,6 +327,37 @@
 			return TRUE
 	return FALSE
 
+/obj/machinery/atmospherics/components/binary/thermomachine/multitool_act(mob/living/user, obj/item/multitool/multitool)
+	if(!istype(multitool))
+		return
+	if(panel_open && !anchored)
+		piping_layer = (piping_layer >= PIPING_LAYER_MAX) ? PIPING_LAYER_MIN : (piping_layer + 1)
+		to_chat(user, "<span class='notice'>You change the circuitboard to layer [piping_layer].</span>")
+		update_appearance()
+
+/obj/machinery/atmospherics/components/binary/thermomachine/emag_act(mob/user)
+	. = ..()
+	if(!(obj_flags & EMAGGED))
+		if(!do_after(user, 1 SECONDS, src))
+			return
+		var/datum/effect_system/spark_spread/sparks = new
+		sparks.set_up(5, 0, src)
+		sparks.attach(src)
+		sparks.start()
+		obj_flags |= EMAGGED
+		user.visible_message("<span class='warning'>You emag [src], overwriting thermal safety restrictions.</span>")
+		log_game("[key_name(user)] emagged [src] at [AREACOORD(src)], overwriting thermal safety restrictions.")
+
+/obj/machinery/atmospherics/components/binary/thermomachine/emp_act()
+	. = ..()
+	if(!(obj_flags & EMAGGED))
+		var/datum/effect_system/spark_spread/sparks = new
+		sparks.set_up(5, 0, src)
+		sparks.attach(src)
+		sparks.start()
+		obj_flags |= EMAGGED
+		safeties = FALSE
+
 /obj/machinery/atmospherics/components/binary/thermomachine/proc/replace_tank(mob/living/user, obj/item/tank/new_tank)
 	if(!user)
 		return FALSE
@@ -308,6 +369,23 @@
 	update_appearance()
 	return TRUE
 
+/obj/machinery/atmospherics/components/binary/thermomachine/proc/check_explosion(temperature)
+	if(temperature < THERMOMACHINE_SAFE_TEMPERATURE + 2000)
+		return FALSE
+	if(prob(log(6, temperature) * 10)) //75% at 500000, 100% at 1e8
+		return TRUE
+
+/obj/machinery/atmospherics/components/binary/thermomachine/proc/explode()
+	explosion(loc, 0, 0, 3, 3, TRUE)
+	var/datum/gas_mixture/main_port = airs[1]
+	var/datum/gas_mixture/thermal_exchange_port = airs[2]
+	if(main_port)
+		loc.assume_air(main_port.remove_ratio(1))
+	if(thermal_exchange_port)
+		loc.assume_air(thermal_exchange_port.remove_ratio(1))
+	air_update_turf(FALSE, FALSE)
+	qdel(src)
+
 /obj/machinery/atmospherics/components/binary/thermomachine/ui_status(mob/user)
 	if(interactive)
 		return ..()
@@ -342,6 +420,9 @@
 	data["use_env_heat"] = use_enviroment_heat
 	data["skipping_work"] = skipping_work
 	data["auto_thermal_regulator"] = auto_thermal_regulator
+	data["safeties"] = safeties
+	var/hacked = (obj_flags & EMAGGED) ? TRUE : FALSE
+	data["hacked"] = hacked
 	return data
 
 /obj/machinery/atmospherics/components/binary/thermomachine/ui_act(action, params)
@@ -391,6 +472,10 @@
 		if("auto_thermal_regulator")
 			auto_thermal_regulator = !auto_thermal_regulator
 			. = TRUE
+		if("safeties")
+			safeties = !safeties
+			investigate_log("[key_name(usr)] turned off the [src] safeties", INVESTIGATE_ATMOS)
+			. = TRUE
 
 	update_appearance()
 
@@ -437,3 +522,5 @@
 /obj/machinery/atmospherics/components/binary/thermomachine/heater/on
 	on = TRUE
 	icon_state = "heater_1"
+
+#undef THERMOMACHINE_SAFE_TEMPERATURE
diff --git a/code/modules/atmospherics/machinery/components/fusion/hfr_defines.dm b/code/modules/atmospherics/machinery/components/fusion/hfr_defines.dm
index 0f9478ec6ce..8294546d0f1 100644
--- a/code/modules/atmospherics/machinery/components/fusion/hfr_defines.dm
+++ b/code/modules/atmospherics/machinery/components/fusion/hfr_defines.dm
@@ -1,9 +1,3 @@
-///Max amount of radiation that can be emitted per reaction cycle
-#define FUSION_RAD_MAX 5000
-///Maximum instability before the reaction goes endothermic
-#define FUSION_INSTABILITY_ENDOTHERMALITY   4
-///Maximum reachable fusion temperature
-#define FUSION_MAXIMUM_TEMPERATURE 1e8
 ///Speed of light, in m/s
 #define LIGHT_SPEED 299792458
 ///Calculation between the plank constant and the lambda of the lightwave
diff --git a/tgui/packages/tgui/interfaces/ThermoMachine.js b/tgui/packages/tgui/interfaces/ThermoMachine.js
index 7863ce888b1..49536c95511 100644
--- a/tgui/packages/tgui/interfaces/ThermoMachine.js
+++ b/tgui/packages/tgui/interfaces/ThermoMachine.js
@@ -48,6 +48,13 @@ export const ThermoMachine = (props, context) => {
               onClick={() => act('power')} />
           )}>
           <LabeledList>
+            <LabeledList.Item label="Safeties">
+              <Button
+                content={data.safeties ? 'Safeties ON' : 'Safeties OFF'}
+                color={data.safeties ? "green" : "red"}
+                disabled={!data.hacked}
+                onClick={() => act('safeties')} />
+            </LabeledList.Item>
             <LabeledList.Item label="Use tank gas">
               <Button
                 content={data.tank_gas ? 'Push gas' : 'Empty'}