Did anyone elses temps drop far lower than they expected last night?

Gromitt

I moved into a new house in the Stoke On Trent area early this year and the heating has been as expected so far. It's 3 bed detached property, 80m2, grade C EPC, cavity walls, pitched roof, fully double glazed, mains gas.

When I go bed the heating thermostat normally changes to 12c, it's about midnight and the house temperature is about 20-21c. When I then wake up about 7 hours later it's normally dropped to about 16 - 18c depending on outside temperature. I don't bother with the heating as I'm up and out within about 30 minutes (plus the heating coming on during the night normally wakes me up)

Imagine my surprise this morning when I woke up and the thermostat said it was 13c ! It wasn't pleasant leaving the bed, let alone the shower. It was like I'd left a door open all night.

I'm now wondering if something has happened over night, as to lose 8 degrees C over a 7 hour period seems insane, plus I might set my thermostat to come on tomorrow morning !

(I'm more confused because I didn't have to deice my car this morning, even though in mornings that I have done, my house temp has been 16c+)

magn8p

Perhaps you or a family member forgot to close a window which was closed in the morning?

The only thing I can recommend to you is to keep a tab on the house temperatures for the next few days as the temperatures are probably not going to vary too much.

Gromitt wrote: »

I moved into a new house in the Stoke On Trent area early this year and the heating has been as expected so far. It's 3 bed detached property, 80m2, grade C EPC, cavity walls, pitched roof, fully double glazed, mains gas.

When I go bed the heating thermostat normally changes to 12c, it's about midnight and the house temperature is about 20-21c. When I then wake up about 7 hours later it's normally dropped to about 16 - 18c depending on outside temperature. I don't bother with the heating as I'm up and out within about 30 minutes (plus the heating coming on during the night normally wakes me up)

Imagine my surprise this morning when I woke up and the thermostat said it was 13c ! It wasn't pleasant leaving the bed, let alone the shower. It was like I'd left a door open all night.

I'm now wondering if something has happened over night, as to lose 8 degrees C over a 7 hour period seems insane, plus I might set my thermostat to come on tomorrow morning !

(I'm more confused because I didn't have to deice my car this morning, even though in mornings that I have done, my house temp has been 16c+)

Aylesbury_Duck

Ice on the car is not necessarily an indicator of how quickly your house will cool. In my area last night there was a chilly wind blowing, enough to stop ice forming on the car but very effective at helping remove heat from a house. Just think about your loft. Probably well insulated but also well aerated. On a cold, still night it will hold some of the warmth that's made it up from the rooms below which itself will help insulate the rooms below. On a cold, windy night that warm air will be blown out and replaced regularly with colder outside air, making the loft space cooler and increasing the temperature difference between it and the rooms below, making the heat loss happen faster. A cold wind will take heat from roofs, lofts, windows, doors and walls faster than they will lose heat in still air.

chrisw

Perhaps it's down to the fabric of the building getting cooler and not being warmed by the sun during the day. So it's having less of a heat store effect.

Plus round us there was a bitter wind yesterday which helps to remove heat faster.

3 degrees isn't a great deal of difference even though it feels like it.

WobblyDog

There's probably nothing seriously wrong with your house.

Last night was the coldest night so far this autumn, according to my outdoor air temperature sensor which dropped to about 2 Celcius at 6am this morning. My unheated bedroom was 13.5 Celcius when I woke up. My house is also a 3-bed detached, they have a higher surface-to-volume ratio than most dwellings, so will tend to leak heat more than most.

EssexExile

We had a sharp frost last night just south of you. I can't comment on the rest as we have the heating set to "toasty" by the time we get up.
What is it about the heating coming on that wakes you up? We don't notice ours.