Thermometers

[big rockpile]

I a Thermometer couple years ago and it showed lower temperature than what I had been using.

I was told I should have more Thermometers in my Greenhouse.

No problem went bought two more like I have.

Put the two New Ones in there one to the back and one on the other side.

Old one was showing 88F the New Ones was showing 84F. No problem switch. Same thing. Ok put in New Battery. Same thing.

Is my old Thermometer wrong?

My wife says wait.

I've had trouble cooling my Greenhouse. Guy that built Greenhouses said there is no reason it isn't cool.

big rockpile

 

[Anniekay]

It's possible for one area to be warmer than the other, isn't it?
You could add additional vents and fans to cool it.

 

[Mystic Moon Tree]

I a Thermometer couple years ago and it showed lower temperature than what I had been using.

I was told I should have more Thermometers in my Greenhouse.

No problem went bought two more like I have.

Put the two New Ones in there one to the back and one on the other side.

Old one was showing 88F the New Ones was showing 84F. No problem switch. Same thing. Ok put in New Battery. Same thing.

Is my old Thermometer wrong?

My wife says wait.

I've had trouble cooling my Greenhouse. Guy that built Greenhouses said there is no reason it isn't cool.

big rockpile

It is possible you have a difference in temperature in different areas. Heat rises as well so if one is higher than the other it will read differently. There could be discrepencies in the quality of one thermometer. Also some only take readings at 10min. intervals rather than instantly. Humidity gathering or pooling and convection currents can make for hot & cold spots within a room. You can even the temp. & cool it with a circulating fan set to low, or by installing high & low set wall convection vents, but this can evaporate water faster. You can adjust other things in the greenhouse to reach desireable temps.

 

[big rockpile]

Thanks I think their ok. Two were the same the other was 2 degrees cooler but it was by a window.

big rockpile

 

[big rockpile]

I don't know. Got Exhaust Fan, and two Big Fans circulating the air, Box Fan in a window blowing out, all windows open and have a Shade Cloth. Still too hot.

My Son is telling me to shut it down but he wants me to put a Tunnel over my garden and I told him no.

big rockpile

 

[Oliver Buckle]

Old one was showing 88F the New Ones was showing 84F. No problem switch. Same thing. Ok put in New Battery. Same thing.

If you are switching the positions of the old one and a new one it seems likely the old one is reading higher than it should. Otherwise the two new ones are both reading low, and that seems much less likely.
How are your fans powered? Are they generating heat from a motor, if so moving the air may not help much. Remember hot air expands and is lighter, any high up ventilation is going to lose it better, and an inlet low down, in shade, on the North side is going to admit cooler air than, for example, leaving a door open might.

 

[big rockpile]

My Door has a Window it's on the North side. Exhaust Fan is on the South side. I have it now where it basically runs all the time.

I think my Thermometers are all right now. It only really heats up for couple hours.

Before long I'll be worrying more about heating it and Grow Lights.

I've been wetting down the floor to cool it in there.

big rockpile

 

[big rockpile]

Here is what I have.

big rockpile

 

[tyronee]

It’s possible that your old thermometer is giving inaccurate readings, especially if the new ones are consistently showing a different temperature. Even after switching positions and changing the battery, the old one still reads higher, which suggests it might be off. Temperature variations in different parts of the greenhouse can also happen, but the consistency between the new thermometers is a good sign they’re more reliable.
If cooling is an issue, it might be worth having an HVAC professional check your system. You could check out Mitchell Plumbing Heating and Cooling reviews if you're looking for someone with experience in this area—they might help pinpoint any cooling problems.

 

[big rockpile]

Bet they cost money and I have none now.

Putting water in our Cabin.

big rockpile