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Old 25-03-2019, 08:36   #1
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Recommended valve for water heater heat exchanger

Hi,

I am going to replace my hot water heater. There are two 5/8 water lines to and from the engine delivering the engine coolant to the heat-exchanger. I want to install valves on these lines to be able to service the heater in the future.
This is a fresh water cooling system, the fluid running in those pipes is engine coolant.
Which type of valve is recommended? plastic/PVC? brass? Bronze?
Thanks
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Old 25-03-2019, 19:55   #2
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Re: Recommended valve for water heater heat exchanger

Why would you want valves?
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Old 26-03-2019, 04:34   #3
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Re: Recommended valve for water heater heat exchanger

I would just use a brass valve

But what "service" does one do to a hot water heater? Putting the valves in is as much work as the "service"
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Old 13-07-2019, 02:30   #4
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Re: Recommended valve for water heater heat exchanger

Quote:
Originally Posted by sailorboy1 View Post
I would just use a brass valve

But what "service" does one do to a hot water heater? Putting the valves in is as much work as the "service"
I have them to stop thermal cycling with the engine. Ie the engine is faintly warm all the time when the hot water heater is on shore power.
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