Setup modulation for underfloor heating
Hello,
I have underfloor heating in my family house and have set a constant temperature of 22.5°C on the Tado V3 thermostat. Last night, the outdoor temperature was 2°C. At 1:15 am, the indoor temperature dropped to 22.5°C, and Tado started heating at the lowest level (one bar). It continued to heat at one bar from 1:15 am to 3:00 am, but the temperature inside kept falling. Then, it increased to two bars from 3:00 am to 4:20 am, yet the temperature still declined. At 4:20 am, it went up to three bars, and only then did the indoor temperature start to rise. I have set the maximum flow temperature to 48°C. This means that from 1:15 am to 4:20 am, the heating was running at a low level unnecessarily, wasting gas.
Would it be possible to add an option to the app so that when the temperature drops below the target level, for example, below my set point of 22.5°C, the heating starts directly at full power (three bars)? My goal is to avoid having the boiler run unnecessarily at one or two bars for three hours every night while the indoor temperature continues to drop, wasting gas.
Thank you.
Here is a similar case from the previous night.
Comments
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Hi, I have exactly the same issue. When modulating to 1 or 2 flames the temperature or load is too low so temp is dropping. I guess the min temp is too low for the boiler because max is set to 46 by tado and that is supposed to be ok0
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Ditto. Tado doesn't know if there are radiators or underfloor heating and seems to treat all systems as if they are based on radiators. In general when there are reasonable outside temperature changes Tado is way too slow, wasting energy with only 1 or 2 bars which does nothing when the floor is cold starting off. Nice sunny winter's day and the house will be nice and warm, well over the setpoint due to the sun heating it up, but come evening that effect goes and inside temperature drops fast. The floor would be cold as the heating hasn't been on all day and we get into the 1 bar, 2 bar waste of time period.
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There’s been a lot of discussion about this in this forum. Some users seem to have persuaded tado° to alter the way the TRVs behave with regard to the 1 & 2 wavy lines settings. I have requested this modification also. The request has been passed to the “second line” team I understand but I’ve had nothing more back yet. I will keep the forum updated . . .1
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I believe they should ask the user for minimal flow temperature just like they do about maximal. My boiler works in 40-80 range.0
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On the other hand I didn't know it works this way - I thought that one wave = minimal boiler output.0
