Let me start by saying I found this forum while doing some research on our new pool that was just started yesterday. This site has been really helpful and I've learned a lot.
Now to my question. I've ready about fireman's switches for turning off heaters prior to the auto timer shutting off a pool pump. My question is are these needed on heat pump pool heaters. I'm looking at a Rheem 8350ti. Most of what I've ready about the fireman's switches appear to be for the gas heaters that probably operate at a lot higher temp than the heat pumps do. I can't find anything in the heat pump installation manual about needing one. I intend to ask my pool contractor, but wanted to check here first. I'm not buying my heat pump from the pool contractor, so I wanted to get you folks opinion on this.

Thanks!