This heater is gas powered, very convenient to use. It is lightweight and portable for your outdoor trips. 

Features: 
Made of stainless steel for durability. 
Mounts to a gas stove and requires no electricity. 
Rustproof emitter guard. 
Adjustable safety valve controls gas flow and heating power. 
Weighs 10.8oz and comes in a storage bag, convenient to carry. 

Specifications: 
Material: Stainless steel & Aluminum alloy & Copper 
Gas Type: Butane 
Injector Diameter (mm): 0.22 
Dimension: 15 * 14cm / 5.9 * 5.5in (D * H) 
Weight: 306g / 10.8oz 

Package List: 
1 * Heater 
1 * Canister Stand 
1 * Storage Bag