jx7
2015-02-11 10:24:09
- #1
Hello everyone! Would the following be a sensible consideration: If I invest in geothermal energy (deep drilling or shallow geothermal energy), I don't necessarily need the KfW-55 standard; KfW-100 might even be sufficient because I can access thermal energy very efficiently and cost-effectively, and the savings potential through better insulation, etc., is then not that significant anymore. If I invest in KfW-55, I don't need geothermal energy because I only need a little thermal energy anyway and can use heat sources that are rather inefficient or more expensive in operation (gas boiler with solar thermal or air-to-water heat pump). So, in short: Either ensure a good heat source or ensure low heating demand. (The savings potential when combining both is rather low.) Best regards jx7