I have my blankets over the oven and want to do my perlcrete layer. I have burned several fires, but don't want to cook with the blanket exposed. However it is getting cold, especially at night. I would rather not put off completing the project until spring. Can I keep the oven warm over a period of a few days to help the percrete set? Do I have to worry about the water in the perlcrete freezing overnight?
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perlcrete insulation in winter