Winter 2023/24 - It's FREEZING!

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Takes way more than an hour to warm my house up on a morning. I have it on about 2 hours on morning, then set back to 18 for the day so it doesn't get too cold before evening heating kicks in.

What's your flow temp set to on the boiler?
Are the rads all hot at the top? No trapped air.

You can get a radiator brush and clean the fins out on the back, helps to get more air through and more heat transfer to air.

The heating is set to 18°C for the hour in the morning shortest time period I can set it for) but, the way the Nest works, it pre-heats the home to ensure the house is at the set temp at the start of that period by learning over time how long it takes to heat the home to the required level from the current level e.g:

Set heat to 18°C for 06:30-07:30 and current internal temp is 14°C - it will switch the heating on at, say, 06:00 so that the house is 18°C at 06:30, then maintain this heat until 07:30 where I have set the temp to 10°C (while I am at work)
Set heat to 18°C for 06:30-07:30 and current internal temp is 10°C - it will switch the heating on at, say, 05:45 so that the house is 18°C at 06:30, then maintain this heat until 07:30 where I have set the temp to 10°C (while I am at work)

The same happens for the evening temp so, although I have the timer section of Nest set to a total of circa 6 hours of heating "on" Mon/Fri (all day Sat/Sun), it may operate for more due to the pre-heating function (I hope that makes sense)


Flow Temp is set to 55oC on a condensing boiler.


That is an amazingly well. Insulated house!
Unless I'm reading it gets really cold when it's off

I think you might be reading it wrong - the temps on the screenshots (18°C and 10°C) are what I have set the temps to at those times, not the actual room temps at the time. To give you an idea - the heating has been off for about 4 hours now and temp has only dropped from 18°C to 16.5°C with an external temp of 3°C (at work so using app to see temp).... I'll see how it goes later this afternoon

New build house so as insulated as you can get for a modern mass produced home.
 
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The heating is set to 18°C for the hour in the morning shortest time period I can set it for) but, the way the Nest works, it pre-heats the home to ensure the house is at the set temp at the start of that period by learning over time how long it takes to heat the home to the required level from the current level e.g:

Set heat to 18°C for 06:30-07:30 and current internal temp is 14°C - it will switch the heating on at, say, 06:00 so that the house is 18°C at 06:30, then maintain this heat until 07:30 where I have set the temp to 10°C (while I am at work)
Set heat to 18°C for 06:30-07:30 and current internal temp is 10°C - it will switch the heating on at, say, 05:45 so that the house is 18°C at 06:30, then maintain this heat until 07:30 where I have set the temp to 10°C (while I am at work)

The same happens for the evening temp so, although I have the timer section of Nest set to a total of circa 6 hours of heating "on" Mon/Fri (all day Sat/Sun), it may operate for more due to the pre-heating function (I hope that makes sense)


Flow Temp is set to 55oC on a condensing boiler.




I think you might be reading it wrong - the temps on the screenshots (18°C and 10°C) are what I have set the temps to at those times, not the actual room temps at the time. To give you an idea - the heating has been off for about 4 hours now and temp has only dropped from 18°C to 16.5°C with an external temp of 3°C (at work so using app to see temp).... I'll see how it goes later this afternoon

New build house so as insulated as you can get for a modern mass produced home.

Bedroom dropped 5 degrees in 2-3 hours last night. And it only stopped dropping as it switched from 20 to 15c
 
Bedroom dropped 5 degrees in 2-3 hours last night. And it only stopped dropping as it switched from 20 to 15c

Seems a lot to me but then I don't know if your's is bad or if it's considered normal and mine is just performing well.

New builds get a lot of stick, sometimes unreasonably so, but you cant argue with the insulation side of it. Apart from things like Passivhaus builds, I am not sure if modern new build insulation can really be improved on, at least not in a sensible/economical manner (perhaps triple glazing might be an idea as standard)
 
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went to bed at 10 .. log fire slowly burning out .. c/h set for 18c ... came on 1/2 hr before i got up at 6:30am .. bit colder in main bedroom old d/b glazing .. putting 30mm in this yr .. :)
edit: old house 1930 ish
 
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We had 2/3 days of "hot" weather upto +6oC bloody crazy....

Everything started melting, snow fell off the roof, big clear up and now my world is an ice rink for a few days :/

Predicted -20 again next week, back to normal phew...
 
Looks like it's warming up on the 20th?

Anything beyond the 16th is all over the place at the moment :s seems to be backing off the snowy scenarios though, but could still see some significant cold at times.

EDIT: Though the GFS is still enthusiastically forecasting up to 50cm of snow over high ground in Wales.
 
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I'm currently having the same issue, exposed floor boards throughout most of my Victorian semi, I dont think the radiators are not big enough to counter the cool air getting in. I am getting carpets fitted throughout the upstairs in an attmept to combat the cold. When its close to zero outside I can have the boiler running full beans for hours and the temp doesnt go above about 17°C. If your house isn't that well insulated you will need high BTU rads to dump enough heat into the rooms to get them warm. It is of course better to tackle it the other way round and insulate as best you can.
We recently switched our living room floor from laminate to 18mm pile saxony carpet, the difference in heat and heat retention is incredible. It’s as if someone put a roof on an open room. Cosiest £700 ever spent.
 
Bedroom dropped 5 degrees in 2-3 hours last night. And it only stopped dropping as it switched from 20 to 15c

Heating off for 10 hours... External temp has been around 4°C today and internal temp dropped from 18°C to 15°C

So yeah, it's decent insulation and performing well I guess
 
I'm planning to get solid wall insulation myself ( internal ) and once that's done I'm gonna save and get rock wool insulation in my loft cause I have damp problems
 
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We recently switched our living room floor from laminate to 18mm pile saxony carpet, the difference in heat and heat retention is incredible. It’s as if someone put a roof on an open room. Cosiest £700 ever spent.
what size insulation was under it ?? got 15mm under mine floor is never really cold ..
 
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