How can I child proof underneath board heat? We have groundwork board heating contained by our house. my son is...

We have groundwork board heating contained by our house. my son is 1 and will be crawling and walking towards the heaters and we don't know what do, and winter is approaching. Does anyone have any suggestions?
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Answers:    We qualified our kids not to touch it. We told them it was hot. We never have a problem. Much easier than messing with the heaters. Better for the kids too. They necessitate to learn things.
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you could put something similar to lattice board around it, so he couldn't touch it.