@ChrisWarwick Our install will begin 22nd July. I am interested in how we will work our upstairs. We never turn the heating on up there. The only time we use it is for the towel rails. We turn the heating on manually.
In the winter we can turn the upstairs radiators down very low. But how about the summer when the heating should never come on. Interesting in your thoughts.
This new 11 MW(th) Air-Water #HeatPump in Vermo, Espoo is the largest of it's kind in #Finland and a first step to 100MW Air-Source HPs on the #Fortum#DistrictHeating network in Espoo, Kauniainen and Kirkkonummi.
It was built last year next to a 160 MW oil-fired peak boiler. This week temperatures plunge below the design temperature -15°C of the #ASHP, so the peak boiler takes over. Luckily only for few days annually, and using bio-oil. #SectorCoupling#Wärmewende
@nemobis On the other hand, Fortum does have some bad experience with the failed 6km #DeepHeat borehole in Otaniemi. And they do recover heat from wastewater in Blominmäki and Suomenoja treatment plants, so that source seems exhausted.
Ten years ago, we got solar panels and a heat pump that uses a geothermal heat source (four 95m deep wells in granite). This combo is just so amazing! So effective, so silent, so clean, and my Raspberry Pi switches the heat pump according to solar input, I love it!
The heat pump was 10k€ ten years ago and it is still 10k€ today. Zero inflation. Doesn't get any better.