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How do some think an HVAC thermostat controls the temperature of the air blowing out?
Posted on 12/23/25 at 9:04 pm
Posted on 12/23/25 at 9:04 pm
I’ve come across quite a few morons through the years who think the lower you set the thermostat the colder the air is coming out of the vents. Even after explaining that it’s basically an on/off switch when the actual temperature goes above or below the thermostat setting, they don’t seem to get it. And they all stand firm, like that “wicked witch of the east was a princess bro“ guy.
EDT: well, I guess I’m a boomer. Turns out there are some really high end units that actually do this. I’m talking about a regular HVAC unit that 99% of people have in their houses.
EDT: well, I guess I’m a boomer. Turns out there are some really high end units that actually do this. I’m talking about a regular HVAC unit that 99% of people have in their houses.
This post was edited on 12/23/25 at 9:38 pm
18
Posted on 12/23/25 at 9:07 pm to LSUTANGERINE
quote:
’ve come across quite a few morons through the years who think the lower you set the thermostat the colder the air is coming out of the vents. Even after explaining that it’s basically an on/off switch, they don’t seem to get it. And they all stand firm, like that “wicked witch of the east was a princess bro“ guy.
Well the thermostat has a temperature gauge built in. This explanation might be too much for you so go find your mother and eats some crayons.
This post was edited on 12/23/25 at 9:08 pm
Posted on 12/23/25 at 9:07 pm to LSUTANGERINE
You are correct on a DX residential unit T-stat. But a commercial Terminal zone Unit can increase the CFM coming out of the box based on how far off set point the stat is reading, effectively cooling off the space quicker if you turn it way down.
EDIT:
For a better explanation for your “friend”. The old Honeywell T-Stats that had a glass tube filled with mercury on a spring. Once the spring moved enough to move the mercury to the contacts the unit came “on”. Same for a modern t-stat.
EDIT:
For a better explanation for your “friend”. The old Honeywell T-Stats that had a glass tube filled with mercury on a spring. Once the spring moved enough to move the mercury to the contacts the unit came “on”. Same for a modern t-stat.
This post was edited on 12/23/25 at 9:17 pm
Posted on 12/23/25 at 9:09 pm to tigeraddict
Lordy. I’m just talking about a regular old HVAC system.
This post was edited on 12/23/25 at 9:09 pm
Posted on 12/23/25 at 9:11 pm to NBR_Exile
quote:
Well the thermostat has a temperature gauge built in.
Duh. And when the temperature goes above the setting (when on cool), it turns off.
quote:
This explanation might be too much for you so go find your mother and eats some crayons.
Go suck on some wet markers
Posted on 12/23/25 at 9:11 pm to LSUTANGERINE
quote:So......you've been introduced to women? Congrats!
I’ve come across quite a few morons through the years who think the lower you set the thermostat the colder the air is coming out of the vents.
Posted on 12/23/25 at 9:12 pm to LSUTANGERINE
Why do people say “turn the heat up” to make it warmer and “turn the AC up” to make it cooler?
Posted on 12/23/25 at 9:15 pm to tigeraddict
quote:
You are correct on a DX residential unit T-stat. But a commercial Terminal zone Unit can increase the CFM coming out of the box based on how far off set point the stat is reading, effectively cooling off the space quicker if you turn it way down.
HVAC board.
Posted on 12/23/25 at 9:18 pm to LSUTANGERINE
Multistage units can change the temperature of air blown and fan speed based on temperature setting and inside humidity settings.
I have mine set to keep humidity at under 50% year round so unit will run a little longer and not as cold in spring and fall
In summer doesnt matter, that thing is running full blast until midnight
I have mine set to keep humidity at under 50% year round so unit will run a little longer and not as cold in spring and fall
In summer doesnt matter, that thing is running full blast until midnight
This post was edited on 12/23/25 at 9:21 pm
Posted on 12/23/25 at 9:27 pm to greygoose
quote:
I’ve come across quite a few morons through the years who think the lower you set the thermostat the colder the air is coming out of the vents.
So......you've been introduced to women? Congrats!
First thought that popped into my head as well!
Posted on 12/23/25 at 9:28 pm to LSUTANGERINE
Well I’ll phrase it differently. The house is warm, let’s say 78, but the a/c is running and set on 70 so they bury the thermostat to 65 as if that is going to change anything. The unit/s are already cooling at their capacity.
Some people are incapable of understanding this simple concept.
Some people are incapable of understanding this simple concept.
Posted on 12/23/25 at 9:29 pm to LSUTANGERINE
quote:
How do some think an HVAC thermostat controls the temperature of the air blowing out?
Well you asked the question. T-Stats have a temp gauge. It blows on or off based on the temp set. Now some more soshpicticated systems have zone control with baffling than can control certain zones for more or less air.
Posted on 12/23/25 at 9:33 pm to NBR_Exile
I think his question was about ignorance
Posted on 12/23/25 at 9:35 pm to NBR_Exile
quote:
Well you asked the question. T-Stats have a temp gauge. It blows on or off based on the temp set
Correct. But in 99% of the systems, except much higher in systems, the cold air temperature coming out of the vents remains constant for the most part.
quote:
Now some more soshpicticated systems have zone control with baffling than can control certain zones for more or less air.
Correct. And none of them morons I’ve come across even know those exist.
Posted on 12/23/25 at 9:35 pm to LSUTANGERINE
i don't even understand how 8 Tacks work
Posted on 12/23/25 at 9:36 pm to kayjay
quote:
Well I’ll phrase it differently. The house is warm, let’s say 78, but the a/c is running and set on 70 so they bury the thermostat to 65 as if that is going to change anything. The unit/s are already cooling at their capacity. Some people are incapable of understanding this simple concept.
Thank you
Like they think it’s going to cool it down more quickly.
Posted on 12/23/25 at 9:37 pm to LSUTANGERINE
quote:
Correct. But in 99% of the systems, except much higher in systems, the cold air temperature coming out of the vents remains constant for the most part.
I typically set the thermostat at hotels as low as they will go. Then, at a hotel in Abu Dhabi, it actually cooled my room to 58 degrees. It was fantastic.
Posted on 12/23/25 at 9:38 pm to LemmyLives
quote:my nipples would freeze off
at a hotel in Abu Dhabi, it actually cooled my room to 58 degrees.
Posted on 12/23/25 at 9:39 pm to LemmyLives
Yep. Who doesn’t love turning their hotel room into an igloo?
Posted on 12/23/25 at 9:41 pm to GreenRockTiger
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