Question for you...
I have a 13yr old van that isn't insulated, you can hear the wind blowing whilst you drive from seals in the door that don't work any more.
I have a 400L upright tank, not insulated in any way.
Now in the tank is 2 x 300w aquarium heaters that have been dropped in 2 holes in the top of the tank (not sealed up).
Is there any point keeping the heaters going from now until work on monday morning ? The water isn't freezing cold, but not warm (was on for 18hours last night) when I checked it today.
In the next 36 hours the heaters will have to be unplugged 3 times min. 1st time for 4 hours, then for another 45 mins, then for another 45mins.
So if you read all that, is there any point plugging the heaters in now or should I leave it till the night before ?
Answers on a postcard to the usual address please