The size of the dome isn’t as vital as what watt it can handle. Make sure it’s built for whatever watt bulb you need. Personally I think I’d rather invest in an radiant heat panel. I really don’t like CHE’s because they get ridiculously hot and are a burn and fire hazard. Currently my enclosures ambient temp is right around 90 on hot end and 82 on cool end with just a UTH and a daylight heat bulb. The ground temp is around 98 right where the UTH is. His enclosure is large enough that he has plenty of room to thermoregulate. At night the cool end dips to about 78 though so.... I may end up getting another UTH or RHP. The nice thing about RHP’s is that the snake can directly touch it and not get burnt.
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