Depend where you live threshold temperature levels you can stand.  20 to 21C is comfortable to me and 18 to 19C at nights are fine when sleeping but not daytime that feel the chill. 

Had to close the shutters early just before sunset due to temps indoor rapidly drop to 20C from 21C as glass are emitting coldness inside.

We’re all different . 15°C at night suits me fine and about 18°C during the day is nice. 20°C is fine but I would open the windows if it was sunny like it was earlier. I guess being in direct sunlight probably helped. I did accidentally set the thermostat on the app on my phone to 26°C ten days ago which was interesting!

When I was young we had no central heating or double glazing so anything in double figures in winter is a bonus. 

A cold night has led to the reappearance of something I've not seen in ages: a small patch of condensation (inside) on my bedroom window.

3.9C outsidde, 19.7C (with a 14C dewpoint) in my bedroom. 16.5C downstairs.

20.3 C

18.6c in the hallway with a general 18.7c to 19.2c around the house.

Internal temperatures have had up well considering it was a clear night outside with a low of 5.6c (coldest this season).

22.5c. heating on.

22.5c. heating on.

Is that a typo? 

A cooling strong wind here just now and 16.9°C but no need for heating.

Overnight low of 6.4C
18.2 in the living room ATM with an outside temp of 12.7 and rising.

Still haven't put the heating on yet this season!

You're doing well.

Cold night last night.

heating on and everywhere a comfortable 24C indoors.

I've had the windows open upstairs today to try and shift that higher-dewpoint air - don't really want condensation again!

They're closed again now (and the inside dewpoint has fallen from 14 to 8C).

Downstairs it's 16C and upstairs it's 20C.

20.3 C - no heating, and hot water still on solar.

16.4c downstairs, electric fire might go on for a bit rather the heating.
Can cope working upstairs, it is 17c.

Heating been on for a blast or two on a number of days this month.  £12.80 on gas this month so far.

19.3c hallway, 19.4c dining room, 21.0c lounge.

A cloudy and mild night arrested the fall and as a result the house is pleasantly warm. No heating this month. A real bonus. 

22.5c Now the thermostat has been lowered to 20.0c.

Tweaked things down a bit - Might as well save some oil whilst I can.

House still a very comfortable 24C.

16 down and 20 up. There'll be plenty of heating going on overnight as it's going to be very cold for the time of year by the looks of it! (The MetO text forecast mentions a ground frost in places...)

Locked up and closed down for the night. 21.0c.

22.6 C yesterday evening, 19.3 C this morning

15.8c this morning (almost dropped to freezing outside) and I've had to put my dressing gown on