>>2700286https://de.aliexpress.com/item/1005006426809816.html?
Fire Maple Sunflower Infrared Radiation Warm Sun Stove Multi functional Camping Gas Burner Portable Gas Heater 1800W Split Stove
It's nice work pretty well, kinda reminds me of a square radiation heater.
no idea if it's efficient. Certainly not ultra light. But fine for steaks, looks great, and I got it for a personally acceptable price etc
The pictured test steak took like a few grams of gas to make 8? 12? i have no idea if I remember correctly at all