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I don't understand the need to have a battery in any thermostat these days. I can see the older programmable ones requiring batteries in case there is a power outage to preserve the programming. Now a days, the chips have gotten efficient enough if the manufacturer opts to use volatile memory, that backing it up with a slow drain capacitor should be more than enough. Drawing primary power from the HVAC system for the thermostat should be the rule and not the exception. As someone has stated, what good is it if the thermostat is still powered up and the HVAC has no power?
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Originally Posted by Lups
We might not be in an agreement on Trump, but I'll be the first penis chaser here to say I'll rather take it up in the ass than to argue with you on this.
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