ASHP - A2A Controls and Consumption

[pwshk]

Hi

@andyham

Ben makes a good first point - when calculating heat load for Gas boilers the tendency is to over estimate as it makes little difference to performance (10-15%), and this practice has been taken over to HP design where it can make a 50% difference.

A 50% reduction in performance would be a bit of a disaster. I’m not sure I’m in that league but need to get a handle on actual consumption/output to know one way or the other. 7.2kw for 166m2 doesn’t seem unreasonable.

@andyham

On the second point, do compare Karolis and Trystan’s monitoring systems. Trystan works closely with CC, installing monitoring systems for members, and has delivered a good webinar on the well engineered HP system he has recently installed.

I know of Homely (via Agile forum) and contacted Karolis last week. He has my model details and is looking at what can be done if anything. That said, I’m not sure that A2A is suited to Homely where folk want to flex consumption but as @andyham says I’m lucky to have a lot of brick to store heat so it might work.

I don’t know Trystan but will have a look at https://openenergymonitor.org/ and contact him as suggested.

Thanks @andyham and thanks @ben

Best
Phil