C&C 35 MK III shower installation - SailNet Community
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post #1 of 13 Old 11-11-2013 Thread Starter
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C&C 35 MK III shower installation

I just purchased a C&C 35 MK III and want to install a shower. Two question; Does the water circulating through the Yanmar 3GM raw water cooled engine sufficient to heat or at least "warm" the water and where have people installed th shower sump and pump?
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post #2 of 13 Old 11-11-2013
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Re: C&C 35 MK III shower installation

Congrats! I own an 83 Mk III. I hope you enjoy yours as much as I enjoy mine.
You should sign up at cncphotoalbum.com for C&C specific questions.
I have a FWC engine and hot water heater. If the engine is running I have a good supply of hot water. A 6 gallon heater makes for a quick shower dockside!
If there is a teak grate in the head the space below that is the sump. There should be a pick-up and hose on that leads to a pump under the sink. I believe the discharge is next to the bilge pump discharge on the port side. There is a pull switch and a separate breaker for the shower sump. Had to replace my pump this year.
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post #3 of 13 Old 11-11-2013 Thread Starter
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Re: C&C 35 MK III shower installation

Thank you. I'm planning on installing a 6 gallon ISO Temp, all stainless steel water heater (since it will be salt water running throgh it) so it's great to know that will be sufficient. There is a sump under a grate but no hose leading out from it. From what you wrote it looks like I'll need to run a hose from the sump to the space under the sink and then run the outlet hose to the sink drain thru hull.
Thanks again for the input.
Dave
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post #4 of 13 Old 11-12-2013
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Re: C&C 35 MK III shower installation

Raw water cooled engine run considerably cooler than fresh water engines. I suspect you will not be happy with the heater performance. Congrats on the boat!!
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post #5 of 13 Old 11-22-2013
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Re: C&C 35 MK III shower installation

I have an old 35 III 84.
My boat used to have a water heater but it has been removed I guess it failed. I was wondering where it was. and what cost for a new one.
My engine is FWC. how does the cooling water run to heater.
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post #6 of 13 Old 11-22-2013
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Re: C&C 35 MK III shower installation

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Originally Posted by Uricanejack View Post
I have an old 35 III 84.
My boat used to have a water heater but it has been removed I guess it failed. I was wondering where it was. and what cost for a new one.
My engine is FWC. how does the cooling water run to heater.
Most engines have plugs located on the heat exchanger of the engine. These plugs are removed and hose adapters are installed in their place. Hoses are then run to the heat exchanger.
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post #7 of 13 Old 11-24-2013 Thread Starter
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Re: C&C 35 MK III shower installation

With respect to what water heater to use, for a raw water cooled engine I'm going to use a 6 gallon ISOTEMP which is all stainless construction and riuns around $700. More expensive then some others but should have a longer life than any that do not have stainless cold throughwhich the raw water passes. An additional advantage ofthe ISOTEMP is that it can be mounted in various ways even to a bulkhead.
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post #8 of 13 Old 11-24-2013
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Re: C&C 35 MK III shower installation

Surprised to learn that C&C would have installed a RWC engine of that size... Did they do this routinely on 'Lake' boats??

Ron

1984 Fast/Nicholson 345 "FastForward"

".. there is much you could do at sea with common sense.. and very little you could do without it.."
Capt G E Ericson (from "The Cruel Sea" by Nicholas Monsarrat)
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post #9 of 13 Old 11-24-2013
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Re: C&C 35 MK III shower installation

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Originally Posted by Saltaire1012 View Post
With respect to what water heater to use, for a raw water cooled engine I'm going to use a 6 gallon ISOTEMP which is all stainless construction and riuns around $700. More expensive then some others but should have a longer life than any that do not have stainless cold throughwhich the raw water passes. An additional advantage ofthe ISOTEMP is that it can be mounted in various ways even to a bulkhead.
I think you are missing my point. The max raw water cooling water should be around 165 F and fresh water systems commonly run around 190 F. So there is a lot more heat available in a fresh water system.

The raw water heat will work fine on a long motor, but will require a substantial run time if you are thinking about running the engine for a bit to heat up some water.

As far as the ISOTEMP goes they are great units, I wish there was one in my boat.
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post #10 of 13 Old 11-25-2013 Thread Starter
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Re: C&C 35 MK III shower installation

OPIE,
No, I understand completely and realize that the raw water cooled engines run cooler, in fact I've heard numbers as low as 130. I'm good with that. Running the engine for a while and/or "warm" water is just fine.
Thanks,
Dave
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