Winter and below freezing temperatures are just around the corner. The northern regions get the most cold for the longest periods.

Regular electrolyzers (unless the percentage of KOH for example is very strong) will freeze, not to mention the safety bubbler.

Is there yet a concensus as to what is the most ideal method/technique to keep electrolyzers functioning well in freezing weather?

The most attractive idea we've seen thus far is using the little, low amperage, heater pads that can be stuck on the side of an electrolyzer, and then wired into a permanent battery circuit. Of course an on/off switch would be a nice touch for spring through fall.

There are also battery warmers which are basically small electric blankets for the battery. This seems like too much of a hassle.

Other ideas such as using alcohol in the electrolyte, or even windshield wiper fluid (Yes, odd as it sounds, it's been recommended by some. My windshield wiper fluid freezes during the coldest part of winter). Notwithstanding future test results, this seems like an obvious compromise of electrolyte quality, and gas production.

One company runs an engine coolant line right through the electrolyzer to quickly warm it up during winter. This wouldn't seem to help thermal run-away during the non-freezing months. And until enough warm-up of the electrolyte, there's no HHO production.

Surely there must be some element, chemical, or product that will act as an electrolyzer anti-freeze. Sodium hydroxide would probably be the first substance to test, to find the freezing points, of various concentrations. However, this does not address the freezing of the safety bubbler.