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I agree. Use standardized wiring and let me control it from a $100 smart thermostat that i can replace if it becomes obsolete. If i want HomeAssistant integra
by vladgur 4y ago
I agree.
Use standardized wiring and let me control it from a $100 smart thermostat that i can replace if it becomes obsolete.
If i want HomeAssistant integration, ill buy an HA-compatible thermostat.
I dont want an expensive HVAC system to be in a walled garden of its own.
- coryrc 4y agoYou lose about 30% efficiency using "standardized wiring" with an inverter heat pump instead of a communicating thermostat, because running a heat pump at 33% power continuously instead of 100% power 20 minutes of every hour results in a COP about 30% higher.
- raisedbyninjas 4y agoWhy do inverter heat pump need proprietary wiring? Everything I've seen indicates inverter and dual stage heat pumps can use standard wiring.
- coryrc 4y agoThey don't need it, they just don't get all their rated efficiency, which is much higher than single-speed systems. Single-speed systems commonly have cooling efficiencies around 10-14 SEER, the Gree Sapphire is 38 SEER. If you ran it at only full power, it'd probably only be 30 SEER.