I bought this camping pot with heat exchanger hoping to speed up cooking in small quantities.

I was suspicious seeing the spot welding on the exchanger so I made a test at home to compare how much faster it boils 250ml water, compared to a basic steel cup with tinfoil lid, using my Esbit Pocket Stove.

Results were underwhelming: basic steel cup beat fancy cup by 10 seconds (5 min 20s vs 5 min 30).

Firemaple Petrel on the Esbit Pocket Stove

Generic steel cup on the Esbit Pocket Stove