upnorthandpersonal
Member
So, after this heat wave in Finland I was able to fully test my radiant cooling system. The way it works: use the air-to-water heat pump to make cold water, and pump that in the floor like you would with hot water in heating season. You have to monitor dew point (so you don't have condensation), but it's working: a nice 23C or thereabout in the house:
Green line is outside temperature, in the shades.Yellow line is inside temperature. Both temperature sensors are Ruuvi tags.
The energy to do this comes from solar. I'm off-grid, so all the excess daily energy was dumped in cooling the 3000L buffer tank to 10C. Water circulated in the floor between 15C and 18C depending on the humidity readings.
Green line is outside temperature, in the shades.Yellow line is inside temperature. Both temperature sensors are Ruuvi tags.
The energy to do this comes from solar. I'm off-grid, so all the excess daily energy was dumped in cooling the 3000L buffer tank to 10C. Water circulated in the floor between 15C and 18C depending on the humidity readings.