I have a couple of tanks in my workshop thats not heated.
I find that doubling the wattage suggested per gallon along with using a hot water tank insulating blanket cut to fit and taped to the back and sides of the tank helps alot.
HTH
Eric
I find that doubling the wattage suggested per gallon along with using a hot water tank insulating blanket cut to fit and taped to the back and sides of the tank helps alot.
HTH
Eric