HEAT stands for
12
similar
HEAT
High Explosive Anti-Tank
Military, Warhead, Gun
9
HEAT
Housing Early Application Tool
Building, Military, Business
8
HEAT
Helicopter External Air Transport
Military, Ministry of Defence, Government
6
HEAT
Headquarters Effectiveness Assessment Tool
Military, Army, WAR
5
similar
HEAT
Hostile Environments Awareness Training
Course, Business, Security
4
similar
HEAT
Humvee Egress Assistance Trainer
Training, Military, Rollover
4
HEAT
Highway Enforcement of Aggressive Traffic
Police, Military, County
3
similar
HEAT
High Energy Advanced Trainer
Mako, Technology, Aircraft
2
HEAT
Hard Entry and Tactics
Army, WAR, War force
1
similar
HEAT
High-Explosive AntiTank
Intelligence, Defense, Military
1
HEAT
Hostile Expendable Aerial Target
Military, Ministry of Defence, Government
Read more: https://www.allacronyms.com/_Military/HEAT#ixzz5aNC5DEwB
#4 could be border associated
#1 could be associated with the drones at the UK airport