"The Cat" Propane heater - SailNet Community
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post #1 of 8 Old 03-29-2015 Thread Starter
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"The Cat" Propane heater

My new boat has a propane catalytic heater. When I turn on the heater it makes a buzzing sound but doesn't light. I don't see a pilot light so I assume it is electric start. The gas is on (the stove works).

Is anyone familiar with this heater? Is there a step I am missing? Does anyone have a manual? I haven't found one.


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post #2 of 8 Old 03-29-2015
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Re: "The Cat" Propane heater

Try tracing the propane hose back. There may be another solenoid or safety valve installed somewhere for safety.


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post #3 of 8 Old 03-29-2015
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Re: "The Cat" Propane heater

Surprised to read that these are actually vented heaters.. if so that's good news.

Do you have a manual? There's likely a 'proper' light-off sequence or procedure. Nothing online that I can see, but it looks like you could ask:



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post #4 of 8 Old 03-29-2015
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Re: "The Cat" Propane heater

Depending on the length of the hose, if it has not been used for a long time, it could take some time to purge the air out of the line. I would check that black hose to make sure it is rated for gas.

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post #5 of 8 Old 03-29-2015
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Re: "The Cat" Propane heater

There is this bulletin on the website Ron found regarding service required for the pressure differential valve. Pretty much seems to consist of removing red hose and blowing thru it.
Apparently these have a powered exhaust, interesting.

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post #6 of 8 Old 03-30-2015
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Re: "The Cat" Propane heater

The Cat propane heaters I have seen do not have vented exhausts. Surveyors do not like them and ask for their removal.

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post #7 of 8 Old 03-30-2015 Thread Starter
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Re: "The Cat" Propane heater

Thanks for the replies. I have emailed the manufacturer to see if I can get the manual. Capttb, I'll check if that service bulletin applies. Seems like a similar symptom.
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post #8 of 8 Old 04-19-2015 Thread Starter
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Re: "The Cat" Propane heater

After some great advice from the manufacturer, I figured out that the blower fan was rubbing on the housing and that was causing it to not fire because of a safety feature. My wife is happy to have heat!
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