I'm installing a staple-up radiant heat system under an existing floor (old house, beautiful fir floors.) I have the opportunity to buy some steel heat transfer plates at an attractive price and save about $700 on the job. Can anyone speak to how these work in comparison to an aluminum plate like Uponor's joist track?

They are cheaper because they are inferior.
There is a reason why they make them out of aluminum.....conduction, and transfer of heat.

If saving 700 bucks is worth a less superior product to the consumer by all means buy them.


Gordy