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-   -   Taking forever to heat oven (http://www.fornobravo.com/forum/f17/taking-forever-heat-oven-19482.html)

cbond 06-03-2013 01:18 PM

Taking forever to heat oven
 
After sitting dormant for 5 months, I fired my oven last night. After 4.5 hrs with a blazing fire, the dome was about half cleared. It has been raining a lot here in western NC. I assume this is because of built up moisture? Should I periodically fire the oven to prevent this even if I'm not cooking? How often? Thanks for the advice!

azatty 06-05-2013 08:27 PM

Re: Taking forever to heat oven
 
How fast did the oven heat before it went on hiatus? How is the oven insulated?

Wet insulation is possibly the culprit, or it could be that your bricks got really wet, too. Is your enclosure vented to let water vapor out?

SCChris 06-06-2013 06:59 AM

Re: Taking forever to heat oven
 
Cbond, It sounds like you need some shelter for the oven to keep it dry. Is a shelter something that you can do?

Chris

cbond 06-10-2013 06:12 PM

Re: Taking forever to heat oven
 
Thanks for your replies. The oven is outside, and built into a stone/masonry structure. It stays dry on the inside, but it is exposed to weather. When I built it I was under the impression that they are made to be outdoors.

david s 06-10-2013 09:42 PM

Re: Taking forever to heat oven
 
If you've not used your oven for a fair while and it's been idle during wet weather, it will get wet even if it has been waterproofed. The porous refractory will suck water from the atmosphere and it will probably get some water through the door. Simply fire it slow and gentle a few times and it should be back to normal. I live in the tropics, my oven is outdoors and gets pretty wet every year during the wet season, but it dries out ok.


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