Some companies manufacture their warmers to go with their wax. Think scentsy. Scentsationals and BHG, i think, are the same way...designed to go with a low melt point paraffin wax.
Those warmers tend to melt the wax to around 150 to 155 degrees. Palm wax needs 170 or better to fully release scent. The hotter the better.
Unfortunately there is no way to know ahead of time how hot the warmer will get the wax. You can use a thermometer in the melted wax to see how hot your warmer is getting your wax.
I use, and sell, warmers by candlewarmers. All i have tried so far get plenty hot enough. But, I've never seen them sold in stores.