Cooling Potential

I had an interesting discussion about the cooling potential of our heat pump system - in a climate warmer than ours. Recently I've shown data for the past heating season, including also passive cooling performance: After the heating season, tank temperature is limited to 10ยฐC as long as possible - the collector is bypassed in … Continue reading Cooling Potential

Having Survived the Hottest July Ever (Thanks, Natural Cooling!)

July 2015 was the hottest July ever since meteorological data had been recorded in Austria (since 248 years). We had more than 38ยฐC ambient air temperature at some days; so finally a chance to stress-test our heat pump system's cooling option. Heating versus cooling mode In space heating 'winter' mode, the heat pump extracts heat … Continue reading Having Survived the Hottest July Ever (Thanks, Natural Cooling!)