Increasing ambient temp - using rocks

[KevinK]

In a post by kitedemon, he had a really interesting idea about using rocks to store and radiate heat.

My thought would be to keep some rocks on top of the UTH behind and around the hid. Does anyone have any idea if the rocks will do a better job at transferring heat from the UTH into the air to increase the ambient temp?

For me, increasing ambient temp wasn't accomplished until I had a lamp. My house is constantly between 71F-74F. An under tank heater doesn't have enough enough power to raise ambient temp even with rocks.

I've asked more than a few questions about this issue on this site before.

I eventually settled on using a red bulb (60 watt worked for me) that runs 24/7 along with the UTH. Don't forget to use a thermostat with the UTH either. (My brand new zoo-med was at 112F plugged directly into the wall YIKES!).

Hope this helps.