Changing heater

[joeyr188]

So how should I go about adding a new heater should I add it in at same temp let it sit for a little then take out the old one?. Also if I want to raise the temp in the tank how should I go about it.

 

[GaryE]

Unplug the old heater. While it cools, set the new heater to what you want. A good heater will allow for that. If your heater can't be adjusted, return it.

Put it in and remove the old one. Plug the new one in. Monitor it closely to be sure it's accurate.

 

[Archerfish]

I agree with GaryE. Non-adjustable heaters are easier/cheaper to produce and in my opinion, are a major compromise. It is sort of like having a home heater installed with a factory preset temperature. How large is your tank? And how much do you need to raise the water temperature above your room's ambient temperature?

 

[AbbeysDad]

You can add a new heater before or after removing the old heater. Most mfg's recommend inserting the new heater for about 10 minutes before plugging it in. Now most heaters are close, but often 2°F or so off from the set point, so always monitor with a thermometer and adjust as necessary.

 

[Glenn407]

I've always placed mine in a bucket with a couple gallons of water and monitored it that way for a few days.

 

[GaryE]

I have some preset heater, for 26c. One gives me 23, one 24 and one 28. I trust preachers more than I trust heaters!

The bucket test idea is good, but the small volume of water can skew it. Remember, heaters are designed to raise temps a few degrees above the room. A lot of people have very cool rooms and want very warm tanks, and that can give you trouble.