Sorry I do not know enough about the dozens of heating and cooling configurations to answer most of your question.
If your current heat and cooling are controled by the same thermostat, then you should be able to use Sensi. It shouldn't matter if your home is equipped with a C (common) wire or not. And, there are devices that can add the C wire in the rare case that Sensi doesn't work in your home. My installer installed the Sensi model st55 so that I can use Alexa, the I Phone App, or the tactile buttons on the thermostat. I am using a 2 year old heat pump in East Texas and every thing works like a dream. I almost always just ask Alexa to make changes but I sometimes use the buttons if I happen to be standing at the thermostat. I'm not sure as how it is possible for a blind person to do an install but most installers can install Sensi in about 15 minutes. Maybe you can phone your local installer and ask a few questions. I wish I knew more but there are too many different ages of systems and types of systems through out the U S. Wood burning, coal, fieul oil, electric, propane and natural gas, and several more. I'm glad people have options but it sure can get complicated. A phone call to a professional might help. I hope you come up with some thing that you are happy with. James B -----Original Message----- From: viphone@googlegroups.com <viphone@googlegroups.com> On Behalf Of Lelia Struve Sent: Thursday, January 12, 2023 4:38 PM To: Viphone <viphone@googlegroups.com> Subject: thermostat with buttons and Alexa and apple. Hi all, especially Mark and James. So you guys both talked about the and sorry for the spelling. Sensy thermostat. My deal is this, we have both a propane heater and a swamp cooler. So they are separate. So would I be able to use this thermostat? If yes, you both said it was easy to change temperature, how? Lelia Sent from my iPhone -- The following information is important for all members of the V iPhone list. If you have any questions or concerns about the running of this list, or if you feel that a member's post is inappropriate, please contact the owners or moderators directly rather than posting on the list itself. Your V iPhone list moderator is Mark Taylor. Mark can be reached at: mk...@ucla.edu. Your list owner is Cara Quinn - you can reach Cara at caraqu...@caraquinn.com The archives for this list can be searched at: http://www.mail-archive.com/viphone@googlegroups.com/ --- You received this message because you are subscribed to the Google Groups "VIPhone" group. To unsubscribe from this group and stop receiving emails from it, send an email to viphone+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/viphone/C5978102-1807-4D1C-80F8-012EAC8252D5%40gmail.com. -- The following information is important for all members of the V iPhone list. If you have any questions or concerns about the running of this list, or if you feel that a member's post is inappropriate, please contact the owners or moderators directly rather than posting on the list itself. Your V iPhone list moderator is Mark Taylor. Mark can be reached at: mk...@ucla.edu. Your list owner is Cara Quinn - you can reach Cara at caraqu...@caraquinn.com The archives for this list can be searched at: http://www.mail-archive.com/viphone@googlegroups.com/ --- You received this message because you are subscribed to the Google Groups "VIPhone" group. To unsubscribe from this group and stop receiving emails from it, send an email to viphone+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/viphone/001e01d926e6%2411b2e2d0%243518a870%24%40gmail.com.
