How to start combustion in firefoam for reactants acting in room temperature
 

Dear Foamers
Hi
I have simulated a diffusion flame with firefoam with the reactants in room temperature, How can I start combustion for the case? I have injected the reactants to the domain, so that I have fuel and oxidizer in the domain. However, they are in the room temperature. Would somebody plz hint me?

Regards
Bobi