How Long Will It Take

[markandhisfish]

how long do you think it will take a 100g tank to get up to temp after filling. ( using 2 300w heaters)

 

[cheesy feet]

4hrs maybe, our tap water hasn't got that cold yet.

 

[markandhisfish]

ok thanks not too bad then if i was to leave say 10g space for topping up with warm would it really make much difference?

 

[cheesy feet]

Not a lot, but still would help I guess.It took less than an hour for my 30gal to heat up using a 300watt heater, but on that day the water was only mildy cold.

 

[markandhisfish]

ok thanks