I just started a trial for another heating method to store my Austrolebias eggs through winter. I tacked IR heating foil to the ceiling, right above the cupboard on which I store my eggs. Contrary to heating cables I tried before, the foil doesn’t become very hot. The heat radiates well. Previous years, I used to put heated aquaria in between my peat boxes but the warmth never distributed well. My first impression is that this new thing will work better. Soon more on this with the data from the logger I put with the eggs.