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Old 12-04-2020, 10:49 AM   #21
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One more tip - if you install detectors in the galley, anywhere near the stove/oven, be sure to keep the plastic covering for the detector(s). When you plan on cooking with smoke potential place the covers on the detectors until you are done cooking. This will prevent false alarming but be sure to remember to remove the covers once you are done cooking.

We normally install heat detectors in cooking areas to prevent false alarms, but in boats I would stick to smoke detectors so the photoelectric portion of the detector will catch smoldering conditions before it becomes a full on blaze.

I think I need to do a little more work on my detector selection and placement. I have generally kept smoke detectors out of kitchens, but as nearby as practical. The same is true for garage space. It's a trade-off between false alarms, and quick detection of a fire originating in the kitchen. The compromise I think is what you suggest, namely installing a heat-only detector in the galley, and a smoke/heat nearby. I should be able to do this since our galley opens to the salon. So a heat detector in the galley, and smoke/heat in the salon.


I also need to think more about the staterooms. I have seen placement guidelines that say to locate the detector just outside the room, and some that say inside the room. My leaning is towards either outside the room, or both inside and outside. I'm not a fan of inside only because I think it allows a fire to get going outside the room where there are much more likely sources of ignition, and end up blocking your exit, or at least delaying detection.


I'm expecting that the prospect of wiring some locations will force me to use some number of wireless detectors. Assuming that's the case, at less than $100 a pop, I will likely lean towards more detectors, not less.
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Old 12-04-2020, 11:02 AM   #22
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Install detectors within 5' on either side of the bedroom doors. And yes, hard to wire areas can be covered with wireless detectors, and you have the right attitude of more coverage is better.

Also, if you're really concerned about wires burning before the detector sends an alarm, use 2hr rated cable. It's super spendy though but it sure is fun to spend other peoples money.
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Old 12-04-2020, 11:16 AM   #23
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Also, if you're really concerned about wires burning before the detector sends an alarm, use 2hr rated cable. It's super spendy though but it sure is fun to spend other peoples money.

Thanks for the offer :-) Thankfully I'm not worried about the wires burning through.
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