[{"data":1,"prerenderedAt":235},["ShallowReactive",2],{"post-\u002Fblog\u002F2022\u002Fmoles-heating-system":3},{"id":4,"title":5,"body":6,"categories":219,"date":221,"description":90,"extension":222,"image":223,"meta":224,"navigation":230,"path":231,"seo":232,"stem":233,"__hash__":234},"blog\u002Fblog\u002F2022\u002Fmoles-heating-system.md","Mole's Underground Heating System Can Not Be Over-Engineered 😋 (work in progress)",{"type":7,"value":8,"toc":208},"minimark",[9,13,18,23,52,55,70,73,82,85,92,95,100,103,108,111,116,119,124,129,134,138,141,145,150,163,166,171,176,181,186,189,193],[10,11,12],"p",{},"OK Guys, this could turn out to be a very long post since it will condense the work I've done over the past year in my basement. Maybe you will understand, why the activity on my blog was a bit low during this time :-) If you just want to read about the technics, jump to the TL;DR section.",[14,15,17],"h2",{"id":16},"introduction","Introduction",[19,20,22],"h3",{"id":21},"i-know-what-you-digged-last-year","I know what you digged last year?",[10,24,25,26,33,34,39,40,45,46,51],{},"Around September last year (2021), I did just what I regularly do, watching the electric energy prices on EPEX on ",[27,28,32],"a",{"href":29,"rel":30},"https:\u002F\u002Fenergy-charts.info\u002Fcharts\u002Fprice_spot_market\u002Fchart.htm?l=en&c=DE&interval=year&year=2021&stacking=stacked_absolute_area&legendItems=000001&enableStepping=0",[31],"nofollow","Energy-Charts",". Since a few weeks at that time, I already realized, that the spot prices where raising a bit, but did not yet investigate it. But in September, I could not resist to have a look at the ",[27,35,38],{"href":36,"rel":37},"https:\u002F\u002Fwww.finanzen.net\u002Frohstoffe\u002Ferdgas-preis-natural-gas",[31],"gas prices",", since these control the maximum prices for electricity (merit-order) and I got a bit of a shock: The gas price was raising with quite a high ratio. And the reason was found quickly: Some of the gas storages had a astonishing 0% level and in December, also the ",[27,41,44],{"href":42,"rel":43},"https:\u002F\u002Fwww.reuters.com\u002Fbusiness\u002Fenergy\u002Frussian-gas-flows-germany-via-yamal-europe-stop-gascade-data-shows-2021-12-21\u002F",[31],"news media realized",", that there was something going completely wrong. In January, many more people ",[27,47,50],{"href":48,"rel":49},"https:\u002F\u002Frp-online.de\u002Fpolitik\u002Fdeutschland\u002Fzittern-wegen-knapp-gefuellter-gasspeicher_aid-65406035",[31],"realized",", that the storage levels have been a bit low.",[10,53,54],{},"As a mole, you feel, when there is something bad happening in the underground and I decided to prepare for a new heating system, including solar electricity production and battery storage. Already in September, I started to learn about heat pumps, LiFePo batteries and searched for partly transparent solar modules to be installed on a car port, that are certified for over-head mounting without an additional roof cover below the modules. Even moles don't like dark corners around the mole hill and the garage :-P",[10,56,57,58,63,64,69],{},"Self-teaching all this is not a big problem, if your background is that of an electronic engineer with a diploma grade and with physics and solar as your hobby. So I felt to be trained enough end of 2021 and ordered the ",[27,59,62],{"href":60,"rel":61},"https:\u002F\u002Fwww.rjtec-shop.eu\u002Fde\u002Fwh-mdc05j3e5.html",[31],"heat pump"," (at this time, it was on stock and the price was 2.800 €), the ",[27,65,68],{"href":66,"rel":67},"https:\u002F\u002Fwww.heizungsdiscount24.de\u002Fspeichertechnik\u002Fhd24-hygienespeicher-mit-zwei-wt-1150l-100mm-vliesdaemmung.html",[31],"heat storage"," (at the time of ordering, it was around 2.100 €), the batteries (on Aliexpress for around 2.700 €) and all the important components I expected a supply shortage (charge controllers, grid-inverters) in January.",[10,71,72],{},"I decided to use an air-to-water heat pump. It makes no sense for moles to draw the heat from the ground :-P",[10,74,75,76,81],{},"It took until mid of february, until I found a supplier that was willing to sell these special PV modules to private people, but I ",[27,77,80],{"href":78,"rel":79},"https:\u002F\u002Fde.gridparityag.com\u002F",[31],"found one"," in the end. These special modules cost around 1.000 €\u002FkWp including mounting stuff, but for me, there was not an option. I can not create a dark corner in front of my garage. The neigbours (no moles) would simply kill me and I also think it looks ugly.",[10,83,84],{},"In the meantime, beginning of March, relatives of my wife escaped from Ukraine and found to our place to stay some time (March to August). I quickly decided to tear out that old 70s bar in the basement and prepare a living and sleeping room for them. And to fence off a part of the room for the heat storage of my new heating system.",[10,86,87],{},[88,89],"img",{"alt":90,"src":91},"","\u002Fimages\u002Fblog\u002F2022\u002F10\u002Fimage-4-1024x576.png",[10,93,94],{},"Some hours later...",[10,96,97],{},[88,98],{"alt":90,"src":99},"\u002Fimages\u002Fblog\u002F2022\u002F10\u002Fimage-5-1024x576.png",[10,101,102],{},"Some days later...",[10,104,105],{},[88,106],{"alt":90,"src":107},"\u002Fimages\u002Fblog\u002F2022\u002F10\u002Fimage-3-1024x576.png",[10,109,110],{},"And even some more days later...",[10,112,113],{},[88,114],{"alt":90,"src":115},"\u002Fimages\u002Fblog\u002F2022\u002F10\u002Fimage-6-1024x576.png",[10,117,118],{},"While waiting for the heat storage (approx 250 kg) and for friends helping to carry it down into the basement, I also prepared the battery storage in the old sauna, that could be entered through the passage on the right in the previous picture...",[10,120,121],{},[88,122],{"alt":90,"src":123},"\u002Fimages\u002Fblog\u002F2022\u002F10\u002Fimage-7-1024x576.png",[10,125,126],{},[88,127],{"alt":90,"src":128},"\u002Fimages\u002Fblog\u002F2022\u002F10\u002Fimage-8-1024x576.png",[10,130,131],{},[88,132],{"alt":90,"src":133},"\u002Fimages\u002Fblog\u002F2022\u002F10\u002FPXL_20220927_203720230-1024x576.jpg",[14,135,137],{"id":136},"tldr-the-technical-groundwork","TL;DR - The Technical Groundwork",[10,139,140],{},"Welp, now after presenting some of the pictures, the more interesting part is the technical description of all that stuff...",[19,142,144],{"id":143},"the-heating-sytem","The Heating Sytem",[10,146,147],{},[88,148],{"alt":90,"src":149},"\u002Fimages\u002Fblog\u002F2022\u002F10\u002Fimage-9-1024x648.png",[10,151,152,153,156,157,159,160,162],{},"RSV - Rückschlagventil - Check Valve",[154,155],"br",{},"\nÜSV - Überströmventil - Overflow (Pressure) Valve",[154,158],{},"\nMBA - Mikroblasenabscheider - Microbubble Air Separator",[154,161],{},"\nMSA - Magnetischer Schlammabscheider - Magnetic Dirt Separator",[10,164,165],{},"And here is, how it looks in reality up to now (work in progress)",[10,167,168],{},[88,169],{"alt":90,"src":170},"\u002Fimages\u002Fblog\u002F2022\u002F12\u002Fimage-1024x824.png",[10,172,173],{},[88,174],{"alt":90,"src":175},"\u002Fimages\u002Fblog\u002F2022\u002F10\u002FPXL_20221028_212323097.jpg",[10,177,178],{},[88,179],{"alt":90,"src":180},"\u002Fimages\u002Fblog\u002F2022\u002F10\u002FPXL_20221028_212330872.jpg",[10,182,183],{},[88,184],{"alt":90,"src":185},"\u002Fimages\u002Fblog\u002F2022\u002F10\u002FPXL_20221028_212347169.jpg",[187,188],"hr",{},[14,190,192],{"id":191},"kommentare-comments","Kommentare \u002F Comments",[10,194,195,196,201,202,207],{},"Hast du Fragen oder Anmerkungen zu diesem Artikel? ",[27,197,200],{"href":198,"rel":199},"https:\u002F\u002Fgithub.com\u002Fthe78mole-blog\u002Fthe78mole-blog.github.io\u002Fissues\u002Fnew?title=Kommentar+zu%3A+moles-heating-system&labels=comment",[31],"Erstelle ein GitHub Issue"," oder starte eine ",[27,203,206],{"href":204,"rel":205},"https:\u002F\u002Fgithub.com\u002Fthe78mole-blog\u002Fthe78mole-blog.github.io\u002Fdiscussions",[31],"Diskussion",".",{"title":90,"searchDepth":209,"depth":209,"links":210},2,[211,215,218],{"id":16,"depth":209,"text":17,"children":212},[213],{"id":21,"depth":214,"text":22},3,{"id":136,"depth":209,"text":137,"children":216},[217],{"id":143,"depth":214,"text":144},{"id":191,"depth":209,"text":192},[220],"Heating","2022-10-29","md","\u002Fimages\u002Fblog\u002F2022\u002F10\u002Fimage-9.png",{"tags":225},[226,227,228,229],"heating system","hybrid heating system","multivalent heating","piping",true,"\u002Fblog\u002F2022\u002Fmoles-heating-system",{"title":5,"description":90},"blog\u002F2022\u002Fmoles-heating-system","wTfbZmztqVFkxUzNO_dXbduOehBqvmpRXYPrty9c3Yc",1777286693851]