Radiant heat panels. The best option for heating enclosures.
I can't disagree, as I use the same method.
Randall is no first timer either. He's been around the hobby for over a decade.
I prefer the RHP setup for ambient temps as well as a hot spot.
HOWEVER,,,,,, THERE ARE OTHER METHODS THAT WORK WELL FOR OTHER KEEPERS!
I have to consider the room my cages are in, the ambient room temp, and work things out from there.
Other keepers may have an ambient room temp that keeps the cage in the acceptable range for ambient cage temps which in turn only requires a hot spot, which may only be belly heat.
I personal prefer the RHP method, and buy my panels from Pro-Products.
My advice is to look into different options and find the right one.