Heating automation
Electronic draft regulator UNISTER DUO (with fan control)
The indicated price is valid ordering till 01.02.2026.
Please contact us on +371 28339922 to check if the item is in stock before making a purchase. Just because the indication is available does not guarantee that the item is available immediately.
THE DRAFT ADJUSTER OFFERS THE FOLLOWING FUNCTIONS:
- maintaining the set boiler temperature through air supply control
- exhaust fan operation control
- function maintaining the firing process, i.e. blowing
- automatic control switch off after the boiler is shut down
- lowering the flap in case of supply power loss
- closing air supply when fuel is added to the boiler furnace
- central heating circulation pump control
- COMFORT SYSTEM function protecting the pump from scale build up
- boiler protection against freezing and overheating
- temperature sensor damage signalling
- motor block/malfunction signalling
- screen brightness control - increased during setting changes
- possibility of connecting a CONTROL remote control panel with an audio alarm











