Question about replacing thermostats.

Hi all, We recently bought a house and wanted to change the thermostats out to Nest or similar ones. The ones we currently have are very basic and don't allow for pre-sets. We had a mass-save person come out to replace them as they have a free service for it. They looked at it and told us that we cannot use any other type of thermostat due to the wiring. Here's what it looks like behind the thermostat panel: ​ ​ https://i.redd.it/xu5w6crp5ok31.jpg I am trying to figure out: What type of pre-set thermostat we might be able to use (Does anyone have or have had a thermostat similar to this one?) Do we need to hire an electrician? Or is this something we can do ourselves? ​ I tried to post this to the other threads, but couldn't figure out how to add a photo. If this should go there, please let me know! submitted by /u/GlitteringExit [link] [comments]

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