Anybody using or got experience of both?
What are the real differences and is the w600 actually any quieter?
Plan is to replace my aging Tado v3 system with the Aqara TRV’s and a dry contact switch to go on the boiler to turn on/off. All linked through home asssitant and automations / heating schedules.
Hello. Yes, it is 100% quieter and even more economical for the power source. It’s just that the algorithms are different. E1 On/Off. W600 intelligent PID system.
I believe my E1 does only open partially, but if the temperature doesn’t go up, then it opens fully. It works great with my cast iron radiators, I only get about 1°C more when it closes the valve, and it gradually falls to the target temperature in about 30min (but it’s how cast iron works). But I also use Aqara temperature sensors about 1-2m from the radiators to have a more accurate temperature control.
Hello, I wrote it a little incorrectly. E1 has a straight-line On/Off opening with four steps through 25% (this is my research). From Off to On there are four opening movements.
Oh, that seems like what I experience. This makes sense, thanks for clarifying.
The huge benefit of W600 (the PI algorithm) is that accounts for error, so if your room is heating slowly then the algorithm will adjust the valve opening according to this issue. So basically, it’s a thermostat that learns how fast your radiator heats the room.
The downside is that if you have a radiators with high thermal inertia (like my cast iron) then you may end with a huge windup of room temperature. So the algorithm needs some tweaks to counter this. That’s what some people are experiencing here.
But if you have an insulated building and modern aluminum radiators then they’re easier to control (thermally speaking) and the W600 should be great for you.