; heat pack can be crafted with the following recipes

Player Recipe
Primary skill used: chemistry(3)
Required skills: N/A
Time to complete: 6 minutes
Tools required:
> 1 tool with chemical making quality of 2
> 1 tool with sewing quality of 1
> 1 tool with cutting quality of 1
> hotplate (2 charges) OR multi cooker (2 charges) OR charcoal smoker (2 charges) OR integrated welder (2 charges) OR atompot OR nearby fire OR chemistry set (2 charges) OR charcoal cooker (2 charges) OR hexamine stove (2 charges) OR gasoline cooker (2 charges) OR mess kit (2 charges) OR military mess kit (2 charges) OR lamp oil cooker (2 charges) OR soda can stove kit (2 charges) OR survivor mess kit (2 charges) OR CRIT mess kit (2 charges) OR heat cube (2 charges) OR heat cube (torch on) (2 charges) OR basecamp stove (2 charges) OR basecamp fireplace (2 charges) OR basecamp stove (2 charges) OR smoking rack (2 charges) OR basecamp charcoal smoker (2 charges)
Components required:
> 1x rag OR 1x plastic bag OR 1x used heat pack
> 5x oxidizer powder
> 1x scrap metal
> 1x thread OR 1x sinew OR 1x plant fiber OR 1x yarn OR 1x Nomex thread OR 1x Kevlar thread
Byproducts:
(none)
--
This recipe can be found in the following books when chemistry is at least the required level:
Advanced Physical Chemistry (level 3)
chemistry textbook (level 3)
Survival Under Atomic Attack (level 4)