How important is a bottle heater?
While it isn't absolutely necessary, a bottle heater should be high atop your list of important accessories.
Josh
consistency because pressure is your oxidizer mass
flow but you're jet tuned with no adaptation. Dry
shot of low amount, the MAF will figure it out more
or less.
If you have a dry kit, I'd wait for winter to get your bottle warmer, if the money is an issue.

Matt


