Room heater advice

[t3chg33k]

If absolute humidity is the vapour concentration measured in g/cc, which you appear to agree to -

Then the absolute humidity changes with temperature or pressure even though no water is added or removed, because, as the gas equation states, the volume increases with the temperature and decreases with the pressure

Absolute humidity | Water Vapor, Air Temperature, Relative Humidity | Britannica

Absolute humidity, the vapour concentration or density in the air. If mv is the mass of vapour in a volume of air, then absolute humidity, or dv, is simply dv = mv/ V, in which V is the volume and dv is expressed in grams per cubic metre. This index indicates how much vapour a beam of radiation

www.britannica.com

So both absolute and relative humidity change with any change in temperature.
I need to recall some high school physics or was it chemistry - gas laws, anyone ?!

Since you are talking about high school physics, may be websites focusing on MCQs for school tests might clear it up for you.

On an increase of absolute humidity and temperature, what is the effect on the relative humidity?A) IncreaseB) DecreaseC) Maybe increaseD) Maybe decrease

On an increase of absolute humidity and temperature, what is the effect on the relative humidity?A) IncreaseB) DecreaseC) Maybe increaseD) Maybe decrease. Ans: Hint: Relative humidity is used in weather forecasts and reports. It is expressed in perce...

www.vedantu.com

 

[ibose]

Since you are talking about high school physics, may be websites focusing on MCQs for school tests might clear it up for you.

No wonder you depend on dictionaries and such MCQ sites. I have given an authoritative source. Take it or leave it, your choice. I am out.

 

[t3chg33k]

No wonder you depend on dictionaries and MCQ sites.

No, on actual scientific definitions which somehow is difficult to comprehend for some people.

 

[ibose]

actual scientific definitions which somehow is difficult to comprehend for some people.

Indeed

 

[t3chg33k]

Talking about a closed system like heater in a room, here's my very simple bottom-line for humidity

That is the heart of the matter as to how close you consider the system to be. It is the reason that relative humidity has temperature as a constant.

Absolute humidity is impacted a lot more by pressure than it is by temperature and the variables ensure that there is no direct relationship between the two.

 

[solo_wing]

So I am now looking to buy Oil fin heater.
There are many brands and almost all of them have mixed reviews.

Confused .

Anyone using any particular brand and want to share their experiences to help me make a good choice.

Thanks.