This optional, wireless 4 button switch offers manual control over the DRI-ECO-HEAT-HC Positive Input Ventilation system.
A boost button gives the occupant the option to temporarily increase the speed of the fan when high levels of moisture are being produced, for example when cooking or drying clothes indoors. The unit will revert back to its usual settings after two hours, to maintain optimum levels of comfort for the occupants.
In addition, the occupant can choose to override the heater setting to suit their own preferences.
The DRI-ECO-4S is an optional control, which can be situated anywhere in the home.

• Occupant controllability – allows the occupant the ability to set the levels to suit their preferences for their home environment
Wireless control – the PIV unit (DRI-ECO-HEAT-HC) is controlled via radio frequency to allow wireless commands from switch to unit
Extremely low power consumption – 3v lithium battery (approx 10 year life) is provided with switch
Automated technology – the PIV unit receives a signal from the DRI-ECO-4S which intelligently responds to the occupants’ individual airflow requirements
Easy installation – switch comes with adhesive tape pre-fitted on the back, or the option to screw in to the wall. Can be fitted anywhere in the home.

The DRI-ECO-4S comes fitted with a 3V lithium battery.

Upon installation it is ‘bound’ to the PIV unit in the loft space via radio frequency, making it a wireless control option.


Dimensions for the dri eco4s

€58.00 including VAT

Returns Policy

Items returned and received in their original condition and packaging within 7 days of delivery will be accepted for exchange or refund subject to a 25% restocking fee. You will be responsible for the shipping costs incurred in returning the goods and should ensure the items are adequately insured while in transit to us. You should phone our Customer Services department on 043 6672034 to get details of the address to which to return goods. Where the goods are being returned because they are faulty or are not the goods that were ordered then, subject to the goods being returned in re-saleable condition, Smartheat will refund the cost of return shipping.