Shelly EM: how to interpret data?

Add-ons Bindings
1

I have a new Shelly EM with latest firmware.
Now I’m playing a bit with it and I’m wondering about the data, especially that the reactive power is so high.

E.g. one room where we’re ironing. Once I learned, that the iron is a ohmic consumer, power factor ~1.
The measurements gave me: 1097 W power, 1666 VAr reactive power.
Without the iron the measurements of the room are: power: 4 W; reactive power: 8 VAr.

Looking at the washing machine:
This is the only device at that circuit.
Standby: -6 W; +4 VAr
heating: +870 W; -1754 VAr
Here is also the sign switching.

Number	num_EM_Waschmaschine_Leistung		"Leistungsaufnahme Waschmaschine"		(gLogChange)	{ channel="shelly:shellyem:ShellyEM1:meter1#currentWatts" }
Number	num_EM_Waschmaschine_Blindleistung	"Blindleistung Waschmaschine"			(gLogChange)	{ channel="shelly:shellyem:ShellyEM1:meter1#reactiveWatts" }

How should I interpret these values?
Any hint how to process these values to get something useful?

Thanks for your help with that topic.

2

Try using units of measurement on the item.

3

Thanks for the hint.
I changed Number to Number:Power as indicated in the config of the thing in PaperUI.
But it had no effect.