Humidity issues

[Melicious]

I could really use some advice on the best way to maintain my bp's humidity levels. During the summer, it's not so bad but now that we have the furnace cranking, the air in our house is so dry I'm having to spray my bp's tank like 5 or 6 times a day. Is there anything I can do to correct this problem? I thought about putting a humidifier by his tank but I'm worried that the condensation on his heat lamp will cause bulbs to blow out all the time. I thought about getting one of those automatic misters for inside his tank, but he's very active and would probably pull it down or any number of other problems. I'm at my wit's end. Also, for the first time in over ten years, he's not eating (I figure due to the humidity problem). You have to know this particular python to know how unusual this is. I can usually barely get the top back on his cage before he's struck his meal. I need help. Thanks in advance.

Let's start out slow.
1. What kind of enclosure? How big?
2. UTH and lamp?
3. Temps and humidity? What are they?
4. Substrate?