When there is not enough energy for sun, an electrical or gas back up element will be automatically switched on by controller.
Price Terms:FOB,CIF,EXW
Payment Terms: T/T,Western Union,MoneyGram,L/C
Minimum Order: Negotiatable
Delivery Port: Customized
Contact SupplierPackaging Detail: cartons
Delivery Detail: Within 15 working days
This is one part of a complete closed loop solar water heater systems.
The unit gathered the Controller,Circulate Pump,Flow meter,Relief Valve,Pressure Gauge,Expansion Vessel,Shut-off and check Valve in together
This work station is pretty much the only choice in very cold climates. When there is not enough energy for sun, an electrical or gas back up element will be automatically switched on by controller.