Apparently, many of my frequent physical ailments, including nosebleeds, can be caused by the air being too dry.

The Call of the Wendigo wrote:

I've had my dehumidifier targeted at 50% for the past 24 hours. I've now come to the conclusion that that's far too low a target, as my eyes feel like all moisture's been sucked from them.

Therefore, I'm going to raise it to 55%.

But, before I do it, I'm going to reduce it to 45%, in this room, to see if it makes the temperature go up.

Now down to 47%.

Temperature still on 20 degrees.

Now down to 46%.

Temperature is still 20 degrees.

This has to be the best running commentary ever.

Humidity now at 45%.

Temperature at 20 degrees.

When I reduced the humidity from 55% to 50%, the temperature rose from 19 degrees to 20 degrees.

It seems I may have maxed out the dehumidity-related temperature increase.

The temperature's gone up to 20.25 degrees.

The Call of the Wendigo wrote:

While I've been researching dehumidifiers, I've started to come to the conclusion that I might also need a humidifier.

Has anyone ever convinced you to swallow a spider to catch a fly?

Since I turned the dehumidifier off, the temperature has dropped from 20 degrees to 19 degrees.

Gas usage yesterday, up by 78%.

I can only conclude that dry air is better at drawing heat from radiators and, therefore, the extra warmth in the house came from the boiler working harder to compensate.

U R taking into account the ambient external temperature I take it?

The temperature's outside have been consistent over the past few days.

Mine is made by ThermPro(?) too!

Your exact hygrometer is being recommended to me on Amazon's main page.

Next to a cat radiator bed.

Therm Pro

ThermPro also make meat spike thermometers.

https://buythermopro.com/

Oh, they're called ThermoPro.