Make prismatic stone give off heat

[irksomebigfoot8]

I love the prismatic caldera; however, it would be cool if the springs that generated didnt freeze over. Idrk if its possible to make blocks give off heat without them giving off light, but it would be pretty cool

[purejosh]

Light level is how "heat" is generated in Minecraft. That's what melts ice, snow, etc. So, light would be needed.