Heat panel placement.

[scales.jp]

Seeing as I haven't used overhead heat panels before, I thought it best to check on here before making a decision on where to position them in my viv. I know they don't have produce the same penetrating heat as CHEs, but tend to warm the viv up more gently. I'll be using two 76w panels (and a 38w UTH if necessary) in what is essentially a 4x2ft viv. The viv will be 50cm tall.

Should I; A) space the panels out to cover the more of the ceiling, providing the heat gradient from top to bottom, or B) group them more at one end so the gradient also goes left to right?

According to the manufacturer, in a 3x1.5x1.5ft viv at an ambient room temp of 25.4°C, the temperature 30cm below a single panel reaches 35.5°C (up 10.1°C). That's left running without a thermostat.

Here's an image of what I mean (the large rectangles are the heat panels, the long thin rectangle is the UV light fitting):