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Old 02-04-17, 01:01 PM   #8
Ormston
Apprentice EcoRenovator
 
Join Date: Mar 2013
Location: UK
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As you are now measuring inside, outside and water temperature you have all the inputs you need for a simple automated weather compensation.
That may well be close enough that you don't notice any lag.

I could probably make our house recover quicker from a temp setback by raising the floor temperature much higher for a couple of hours then dropping it as the room temp recovered. My feeling is the tiny bit of energy saved by lowering the temp at night would be dwarfed by the loss in heatpump efficiency when running at elevated temps.

The idea of a predictive element in equation sounds great, just not sure as i want my heating system online, or to need to be online to work correctly.

Currently running Codesys on a raspberry pi with arduino mega's as I/O nodes over modbus tcp.

When i catch up on my jobs/project list i will have a go at reading weather forcasts to see how accurate/useful it is.

Steve
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