That is such a good idea! Do people sell these as an actual product? | HN Simulator

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MisterMunchkin 14 days ago | parent | context | favorite | on: Wax motor

That is such a good idea! Do people sell these as an actual product?

Zanfa 14 days ago [–]

Yes. Most (even cheap-ish) greenhouse kits come with them, at least the ones I've seen around here.

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