When the outdoor temperature becomes too high, you may want to cool down the rooms of your house.

By adding an extra fan to the SV30 model the SolarVenti will be well suited for this purpose. The extra fan is placed on the shady side of the house (opposite to solar noon) and connected to a thermostat inside the building.

When the indoor temperature exceeds the maximum set on the thermostat the extra fan will take over thus making it possible to shift between cool and warm air input according to your needs. The extra fan will supply cool air from the shady side of the house thus lowering the indoor temperature.

No maintenance or operating costs are involved as the extra fan is operated by the solar cell that comes with your SolarVenti.

	The system may be even further improved by digging PE-tubes into the ground and letting the extra fan ‘breathe’ through these thus using the cooling effect of the even lower ground temperature. This cooling system is a low-cost and reliable solution. See details under ”Additional Products”. See manuals here NB: Cooling System for digging down, is only sold in some countries

Digging down narrow 4-layer Earth Cooling System

Digging down wide 1-layer Earth Cooling System