[OpenTRV-dev] My Export from Heating Company 1

[Damon Hart-Davis]

We probably could tweak your code to have a max less than 100%, though I think that that *might* make the valve more prone to jam up with scale…

Rgds

Damon


On 27 Mar 2014, at 19:28, Bo Herrmannsen <EMAIL ADDRESS HIDDEN> wrote:

> As you all know i use district heating where the goal is to cool the incoming water as much i can sending back cold water for the plant across town to heat up. 
> 
> They want to get rid of their heat :-D
> 
> So my bill is 2 parts, energy and cubic meters of water. The energy part is the cheap one, while the cubic meter is more expensive. Why that?
> 
> Because if you have a high flow you are likely to send back the water more hot than needed.
> 
> First graph shows last year compared to the 2 years before, i cant remember when i installed OpenTRV at the hot water but if not mistaken it was in march... and you will see a drop, not much but everything counts. It can be better if the code is adjusted to there is a max % open setting and you give it more time to heat the water, rigtht now 2 hours is enough with sometimes 10 mins to spare. Also keep in mind that its running on the picaxe version still. 
> 
> Oh, it will be 3 graphs, first one is how much i cool the water, so the higher the better, dark blue is 2013... green 2012, light blue 2011
> 
> 
> 
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