[Yamasa]

I have a question that did not come up in forum search.

Has anyone ever used a submersion heater to get the water in the humidifier up in temperature?
My humidor is in the basement which generally averages 16 C, or about 61 F, and depending on furnace cycles can be 15 C.
I would like it to get to somewhere around 20 C or 68 F, and wondering if this is an option.

Thanks,