Adapter Question


  #1  
Old 06-05-20, 05:06 PM
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Adapter Question

We are in California. The device is an 8 KW electric on demand heater. The two pictures are of the plumbing pipe connected to the heater and the parts separated to show the components. I stopped at a plumbing store and the people behind the counter could not definitively state if this is a good setup. The threads on the heater are finer than the threads on the plumbing flex tube.

Is this setup going to work well and not leak?
 
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  #2  
Old 06-06-20, 05:53 AM
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Why do you need the brass adapter? I believe the fitting on the water heater is for a 1/2" compression, with the rubber washer, your flex hose should connect to without a problem.

The brass ring is used if you were using a copper pipe, the ring would compress around making the seal. No need for that - and no need for the adapter.
 
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Old 06-06-20, 11:04 AM
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The threads on the heater do not match the threads on the tubing. The guy behind the counter referred to compression thread and something else threads. I presume that compression fitting have thread specifications that differ from the other type of fittings. I have two pieces of braid covered flex hose for sink connections and the type of thread is not stated.

The manufacturer specifically warns of putting torque on the device so I held the device up a bit, used a crescent wrench on both sides of the connector, and tightened as much as I dared. After 5 to 10 minutes, we had a few drops of water beneath one of the connections. It was tightened just a bit more.
I worry that no amount of tightening will correct the problem.
 
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Old 06-06-20, 12:39 PM
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Ah, my mistake. I see that the flexible hose is a 1/2" FIP and the heater is a 1/2" compression. So I assume that adapter will help make the connection. It shouldn't need super tightening.
 
 

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