40 VA Transformer 24Volt
24-volt control add-on. Field supply 24V to control heater operation (one 24VAO requred per heater). External transformer (P/N 4000-01V) required.
I have experience dating back to 1995 installing patio heater systems in California and would be happy to answer any of your questions. Right now, we're offering free shipping for any orders over $100 and free consultations.