New to emoncms. how to create feeds to count hot water and heating kWh usage?

Getting Started
, ,
1

I am new to EmonCMS, fantastic kit, and fantastic software, big thank you for this.

I tried to find an answer but without success.
I have inputs from my heat pump electric_Power, electric_Energy and pin15 as hot water diverter status. So the feeds are heatpump_elec, heatpump_elec_kwh and heatpump_dhw. I’d like to configure a few extra feeds: heatpump_elec_dhw, heatpump_elec_hc for power on hot water and heating circuit, and also heatpump_elec_dhw_kwh, heatpump_elec_hc_kwh as energy. Power is simple with virtual feed with just multiplication to heatpump_dhw. But it is not clear for me how to deal with energy (kwh feeds). Anyone can point me into right direction?

Thanks!

2

For now done it as following, does this look correct?

image
image2090×708 129 KB

3

Hello @ksim

I dont think the above will work Im afraid.

I would use the heat meter heat output power data and then use the DHW flag and power_to_kwh to convert to energy. That should give you better results.

Lets say:

  • Log to feed heatpump_heat
  • x feed: heatpump_dhw
  • Log to feed: heatpump_heat_dhw
  • Power to kwh: heatpump_heat_dhw_kwh
  • Reset to Original
  • x feed: heatpump_space (? perhaps create an inverse feed)
  • Log to feed: heatpump_heat_space
  • Power to kwh: heatpump_heat_space_kwh
1 Like
4

thank you will try

5

Worked perfectly, thank you!

1 Like