If you cannot afford $30 how will you be able to afford $200 for a vet visit when the burn will be so severe you will have no other choice than seek a vet's attention?
Unregulated heat source are not only dangerous for the animal they are also a fire hazard, can you afford to lose your house as well?
So ask yourself those question and hopefully you will make the right choice.
And now here is some food for the thoughts.
Per ownership is a great responsibility they are not disposable, if you cannot afford to take care of your pet(s) and the animal(s) suffers because of it than pet ownership should seriously be reconsidered.
Pets cost money, they cost money to feed, to house and they also require vet visit when necessary which that needs to be taken into consideration as well before acquiring more animals while only providing the bare minimum.
Another important thing is to properly do research on your animal's need.
Anyway in the mean time go to lowes or home depot and get a lamp dimmer it will be a temporary fix but it will do the job. http://www.homedepot.com/s/lutron%25...0dimmer?NCNI-5