One Heater or Two?

[Mr. Roboto]

Do you guys run one heater or two.

The last setup I had, I ran one, grant it, it was only about 3 gallons and quickly figured out that one little 10w heater couldnt keep up with it being 67 in my house during the winter...

I have a larger more less 5 gallon now and am wondering if I should add another heater.

What are most of you using? On my larger builds in the past I have always used two smaller heaters but its kinda hard to do that with the small volume in a pico/nano

Let me know your thoughts.

 

[Mark Goode]

I used two heaters, but when one of them packed up I had no way of knowing, so I finished up using just one under sized heater (until that failed too). Now I just use one, I can see no benefit in using two.

 

[fishyjoes]

I have a 20 gallon display with 10 gallon sump - I figure around 25 gallons total volume. I just use one heater with an inkbird controller as a safety (shut off if the temperature gets too high, not control the heater all the time).

I have another tank, 55 gallons, no sump. That one I use two heaters in the winter and one in the summer.

 

[Dave Clark]

I've always had good experiences with Cobalt NeoTherm heaters. I have the 75w model in my Fluval Evo 13.5g nano, controlled by an Inkbird. Very little fluctuation in my tank's temperature, even when the ambient temp is in the low 60s F.