How To: Tap a Heat Exchanger to coolant hoses - Second Generation Nissan Xterra Forums (2005+)
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post #1 of 5 (permalink) Old 02-28-2019, 02:10 PM Thread Starter
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How To: Tap a Heat Exchanger to coolant hoses

I'm planning to add Hot Shower capability to my overland build. For that, I found a small heat exchanger to be the least space consuming option. It can be mounted in engine bay using a custom made bracket. But first I need to know which hose I can reliably tap it to.
The hose shall be always carrying hot coolant fluid. I'm not sue if that is true about the heater pipe assembly.


If you have technical knowledge about it, I appreciate your comment and help.
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File Type: jpg Engine Bay.jpg (135.7 KB, 14 views)
File Type: jpg Heat Exchanger.jpg (33.1 KB, 14 views)
File Type: jpg Heater pipe assembly.jpg (39.0 KB, 14 views)
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post #2 of 5 (permalink) Old 02-28-2019, 02:12 PM
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Subbed. Sounds like an awesome idea! Curious to see it in action.

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post #3 of 5 (permalink) Old 02-28-2019, 02:22 PM
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I'd think tapping into the line to or from the heater core would be a safe bet.
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post #4 of 5 (permalink) Old 02-28-2019, 02:28 PM
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My understanding is that we do not have heater control valves, so coolant is circulating the heater core regardless of the temperature setting on the a/c control panel.
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post #5 of 5 (permalink) Old 02-28-2019, 03:23 PM Thread Starter
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Quote:
Originally Posted by Longboardr View Post
I'd think tapping into the line to or from the heater core would be a safe bet.

Quote:
Originally Posted by satown210 View Post
My understanding is that we do not have heater control valves, so coolant is circulating the heater core regardless of the temperature setting on the a/c control panel.

Thanks! I thought so, but needed others' confirmation to ensure.


Now I have to think about the bracket design. It shall be somewhat easy accessible, because water hoses are going to be easy-connect fittings. Coolant hoses are permanently connected, but water hoses (inlet to heat exchanger and outlet to shower) will be connected and disconnected per use.



Some sample images of the quick connect fittings for the water hose:
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File Type: jpg Banjo2.jpg (91.1 KB, 11 views)

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