Carbon Monoxide poisoning

[Bbroomlea]

By the looks of your avatar you have a Sealine S24?

I have noticed in my S24 that when I start the engine at it's berth, the initial smoke from my diesel sometimes enters the cockpit area. I found that the drain holes under the engine hatch backfeed smoke from underneath the bathing platform. I have replaced the engine hatch seal (twice) but it doesn't seem to stop it completely. Anyway I keep the covers open until the engine has warmed up etc.

I also have a First Alert CO2 tester from B&Q with a PPM display for around £30, it is placed at the entrance to the cabin. I bought this for the gas cooker more than the engine exhaust at the time.

As others have said, best to keep some airflow at all times really.

Thanks - you guessed right its an S24. I will have a look at the drain holes when we are over at the weekend.

I've too just been to B&Q and purchased a CO2 detector and a smoke alarm in one which I'll place near the cabin which should get both the gas and exhaust emission but I wont be running the engine again without the front hatch open and at least one part of the canopy down regardless of the weather!