Heating Our Building - Part II
Posted on:September 23 2015
In the beginning of this year, I blogged about the air-to-water
heat pump which is taking care that all the programmers in my office have it warm in winter.
It is now running for more than one full year, so I have some more data to show: The graph below shows the temperature and the needed electricity. It also contains the electricity needed by the full building, but at least 80% is used for the heat pump:
Easily to see that if it gets cold outside, the needed power goes up quite a lot. It looks maybe a bit scary, but interestingly, this system now is 50% cheaper than the old oil based heating: Our electricity bill is now only half of what we paid yearly for oil.
I'm quite impressed by that, I thought it would be cheaper with a heat-pump, but not by that amount. Nice to see that we will have it still warm inside, while paying less AND keeping the environment clean - our electricity is generated by water power.
heat pump which is taking care that all the programmers in my office have it warm in winter.
It is now running for more than one full year, so I have some more data to show: The graph below shows the temperature and the needed electricity. It also contains the electricity needed by the full building, but at least 80% is used for the heat pump:
Easily to see that if it gets cold outside, the needed power goes up quite a lot. It looks maybe a bit scary, but interestingly, this system now is 50% cheaper than the old oil based heating: Our electricity bill is now only half of what we paid yearly for oil.
I'm quite impressed by that, I thought it would be cheaper with a heat-pump, but not by that amount. Nice to see that we will have it still warm inside, while paying less AND keeping the environment clean - our electricity is generated by water power.
Comments:
Not that it invalidates the argument, but the last winter was a pretty mild one - we also had a considerable reduction in gas consumption over the same period compared to the one before. Therefore the monetary savings may be a bit exaggerated - but even if it costs the same it is likely more environment friendly.
xaos
Quote2015-09-23 13:20:00
Yes, unfortunately I didn't log temperature/oil consumption when we had that old heating. Would be cool to compare that...
niko
Quote2015-09-23 13:37:00
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