A2446   Region: Stockholms län Heated surface: 300m2 Yearly consumption: 21000kWh   Info about the house: House built 1938. extended 1948 and 1963. Not the best insulation for the moment. Total area 220 m2 living area +80 additional area.   Info about heating: First heating was cool, then oil, and from 2001 geoterm heating. Upgraded to GEO 312c 2017. About 20% lower electricity consumption compared to previous IVT Greenline installation.   Other:   Data link: H66 341101

IVT Geo 312C 11 kW