Thermonator as Heat Exchanger

I was wondering if a Shirron plate or a Thermonator could be used as a heat exchanger in a mash system? Thoughts?

I'm fairly certain I've seen examples of this posted in the forums. I imagine the critical issue is keeping the wort side free of accumulated debris. One way to mitigate that is to set the grain bed through recirculating (ie: vorlauf) with the plate chiller out of the loop, then once the return stream is running clear you can switch the chiller in and start the control process...

Cheers!

Tried that. CFCs work better.