Regarding PVC or wood enclosures of 6 ft. or less... has anyone ever used TWO RHP's, one on the cool side and one of the warm? Each RHO with its own thermostat, and most likely in a colder room, to try and better attain a left-to-right gradient?

Trying to plan out some future enclosures. And, my snake room tends to be in the low to mid 60's. Have no problem, technically, with the several enclosures I have there now, using ONE RHP. But, wondering how two would work.