anchor.diff:  	ASSERT_GAS(/datum/gas/carbon_dioxide, air)
   	cached_gases[/datum/gas/carbon_dioxide][MOLES] += freon_burn_rate
   
  -	if(temperature < HOT_ICE_FORMATION_MAXIMUM_TEMPERATURE && temperature > HOT_ICE_FORMATION_MINIMUM_TEMPERATURE && prob(HOT_ICE_FORMATION_PROB))
  +	if(temperature < HOT_ICE_FORMATION_MAXIMUM_TEMPERATURE && temperature > HOT_ICE_FORMATION_MINIMUM_TEMPERATURE && prob(HOT_ICE_FORMATION_PROB) && isturf(holder))
   		new /obj/item/stack/sheet/hot_ice(holder)
   
   	SET_REACTION_RESULTS(freon_burn_rate * (1 + oxygen_burn_ratio))
  
positive.code: 	)
  
  /datum/gas_reaction/freonfire/react(datum/gas_mixture/air, datum/holder)
  	if(!isturf(holder))
  		return NO_REACTION
  
  	var/temperature = air.temperature
  	var/temperature_scale
  	if(temperature < FREON_TERMINAL_TEMPERATURE) //stop the reaction when too cold
  
negative.code: 	var/freon_burn_rate
  	var/list/cached_gases = air.gases
  	if(cached_gases[/datum/gas/oxygen][MOLES] < cached_gases[/datum/gas/freon][MOLES] * FREON_OXYGEN_FULLBURN)
  		freon_burn_rate = ((cached_gases[/datum/gas/oxygen][MOLES] / FREON_OXYGEN_FULLBURN) / FREON_BURN_RATE_DELTA) * temperature_scale
  	else
  		freon_burn_rate = (cached_gases[/datum/gas/freon][MOLES] / FREON_BURN_RATE_DELTA) * temperature_scale
  
  	if (freon_burn_rate < MINIMUM_HEAT_CAPACITY)
  		return NO_REACTION
  