Heating a tank by heating the room?

Dewclaw83

Member
Curious if you wanted to keep 2.5 gallon "tanks" at 78-80 degrees, what temperature would you have to have the room at?
 

AquaticQueen

Member
The room would need to be at a constant 78-80 degrees but the temp of the room will probably change throughout the year so I would just get a small 20 watt heater, just to be safe.
 
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Dewclaw83

Member
AquaticQueen said:
The room would need to be at a constant 78-80 degrees but the temp of the room will probably change throughout the year so I would just get a small 20 watt heater, just to be safe.
I didn’t go into detail, sorry. It’s a growth chamber designed to hold at a constant temperature, and it wouldn’t be a long term situation.
Isn’t a tank usually a few degrees colder than the air though?
 

Betta'sAnonymous

Member
Dewclaw83 said:
I didn’t go into detail, sorry. It’s a growth chamber designed to hold at a constant temperature, and it wouldn’t be a long term situation.
Isn’t a tank usually a few degrees colder than the air though?
Maybe at first. After awhile it matches room temp and will do so unless cooler water is added to it.
 

John58ford

Member
To a point, water will be cooler than dry air, this can be seen by the example of wet bulb measurements. The effect is caused by evaporation and is affected by dewpoint/relative humidity, as well as air flow

Honestly, at normal temperature in the 30-50% relative humidity range, the most you would see is a 2-4 degree fahrenheit difference from room temperature. Less so with the effect of a lid increasing the humidity/buffering the air above the water.

So the answer that it is basically the same is basically true, most aquarium thermometers are off by a degree or two, so are the heaters we buy so the room technique is likely just as accurate and more stable.
 

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