The instructionset up manual is a little lacking on information.  That is on the manufacturer not wayfair though.  I had a delay during shipping and the customer service I received was above and beyond expectations.  I cannot review the actual item as it is still getting up to temperature to be able to use.  I filled it yesterday with 53F water and today approx 24 hrs later it has reached 86F.  Goal temperature is 100F.  Everything appears to be in working order.