Wavy lines and non-modulating boiler.
Hi,
Quick question regarding the three wavy lines.
With a conventional boiler that is either on or off, does the three wavy line system have any relevance at all?
For example, does one wavy line cause the boiler to fire, or would that only happen at 2 or three lines?
Best Answers
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Yes, the wavy lines are still relevant. The number of lines is proportional to the heating demand calculated by the Tado system. Tado don’t give a precise explanation, but this is roughy how it works.
No wave : boiler off
1 wave : demand is 1% to 33%
2 waves: demand is 34% to 66%
3 waves: demand is 67% to 100%
As an example, if demand is 20% you will see one wave and the thermostat will turn the boiler on for 12 minutes in each hour to reach/maintain the current set point.
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Yes, the heating activity report is a bit misleading. Quite normal these days to have an efficient home where the boiler is running at a low water temperature for extended periods of time.
Using Tado there is no way to find out how long the boiler is actually running for.0
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Thanks @GrilledCheese2 that makes sense. I have the Wireless Receiver with 1 wireless thermostat, plus Tado SRV's on the radiators set so they can call for heat.
I was alarmed to see at 0900hrs that my system already reported 5.5hrs of heating activity but, as far as I now understand, that doesn't equate to actual boiler on time?
Is there a way I can see how many times and for how long my boiler is running - ie grab the data from the Wireless Receiver?
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Ironically, I just replaced my Google Nest system, because that was pretty much the *only* data it could give me.
It'd be helpful if the feature could be implemented.
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@RenwickHoek Hi, is your thermostat working correctly with the conventional boiler (only on/off state)? I also have this kind of boiler and the thermostat works weird. It turns on the boiler for 2 minutes, then it's off for 10 minutes and then it's on again. This happens over and over again. I think this is not good for the water pump because it also turns on and off every 10 minutes.
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My understanding is that the controller decides how best to get the radiators up to the desired temperature which, as @GrilledCheese2 answered above, varies according to the calculated demand. So, rather than turning the boiler on constantly until it reaches the target temperature, it will activate and shutdown a number of times during an hour - presumably to take advantage of "stored" heat in the radiators over time, therefore reducing energy use.
The above is my take on it, maybe someone else could confirm?
You can see the current demand from each SRV under "Care and Protect" in the app.
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