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Engine Bay Tube Heaters

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Hi when your tube heaters are installed in your engine bay over winter is it best to replace the engine cover boards or leave off for ventilation. I am thinking replace them to aid the insulation but does this cause any safety issues. All your knowledge very much appreciated as always, hopefully by next winter I should be proficient in all things winterising.

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I leave my engine bay closed in as the tube heaters are (?) very low wattage and on a protected circuit. 

BTW I found that when setting the thermostats, it's very difficult to set them accurately at the lowest settings due to the wide range. I use WiFi to switch mine on and off but I have considered using a separate frost stat to save the electricity bill.

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Hello Pinto,

we have had tube heaters on both side of our engine for many years now and like yourself they are operated on a frost stat. Our engine bay insulated covers and carpets are left in place. At the end of the season (now earlier than planned) the boat is winterised, lifted and ready for its winter service.



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