Have you put your heating on yet?

Have you put your heating on yet?

Author
Discussion

B'stard Child

28,475 posts

247 months

Thursday 11th January
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gotoPzero said:
One of my things to do when I get chance is to fill the void under our kitchen cabinets with insulation.

Anyone else done this?

We had the base boards off to clean them at the end of summer and there was quite a draft coming from under there.
I did this a few years back as a temporary measure with a few bits of loft insulation and it made a difference - I've since insulated under the floor with 75mm Kingspan PIR and I've removed the loft insulation as it's no longer needed and insulating properly under the floor has made a much bigger difference

OldSkoolRS

6,764 posts

180 months

Thursday 11th January
quotequote all
I don't have the fancy controls and outside temperature throttling of my boiler that some on here have, but I have been running a sort of 'set back' routine this winter. My programmable thermostat has a frost setting, which I increased to 18 deg C and I can turn the boiler timing at the boiler end so that overnight the boiler is off and comes on to the frost setting before we get up. From 5pm until 11pm the thermostat timer comes on, set to 20 deg C, since I usually go to bed after midnight and it stays warm enough until then.

We've found this year that the house doesn't get to that stage when it feels cold, yet our gas use doesn't seem any worse than the same months last year. It's not quite 'low and slow' since our combi boiler isn't a condensing one, but the general principle of a background heat to stop it getting too cold seems to have worked well. Tried it out mostly based on what I'd read on this thread. beer

I did put extra loft insulation in last autumn, so we're up to 400mm at least and in some sections over 500mm (just to use up the material). I also put a letter catching box to stop a draught from our through the wall, non standard size letter box. That's helped too judging by the lack of draughts in the hall now.

Edited by OldSkoolRS on Thursday 11th January 09:17

Scabutz

7,693 posts

81 months

Thursday 11th January
quotequote all
UTH said:
I chucked a load of rock wool in my loft last year - not a very professional job, but there's certainly a lot up there.

Floors - I WISH I'd insulated under the bedroom floorboards when we had the carpets up for renovation in 2020, such a mistake. As for insulating the walls, I'm not really sure how that's done, I think I need a pro to come and assess my house really.
Depends on the wall construction. If you have a cavity then as long as your house isn't exposed to wind driven rain and your cavity and brick ties are clear then that's a fairly cheap and easy fill. Still needs a pro as the drill lots of holes and use a machine to blow the fill in.

If you have solid walls then it's usually a pro job. Either external insulation and render, or a internal refurbishment with insulated plasterboard. Both expensive and messy.

UTH

9,008 posts

179 months

Thursday 11th January
quotequote all
B'stard Child said:
gotoPzero said:
One of my things to do when I get chance is to fill the void under our kitchen cabinets with insulation.

Anyone else done this?

We had the base boards off to clean them at the end of summer and there was quite a draft coming from under there.
I did this a few years back as a temporary measure with a few bits of loft insulation and it made a difference - I've since insulated under the floor with 75mm Kingspan PIR and I've removed the loft insulation as it's no longer needed and insulating properly under the floor has made a much bigger difference
I might try and crack on with this over the weekend then

UTH

9,008 posts

179 months

Thursday 11th January
quotequote all
Scabutz said:
UTH said:
I chucked a load of rock wool in my loft last year - not a very professional job, but there's certainly a lot up there.

Floors - I WISH I'd insulated under the bedroom floorboards when we had the carpets up for renovation in 2020, such a mistake. As for insulating the walls, I'm not really sure how that's done, I think I need a pro to come and assess my house really.
Depends on the wall construction. If you have a cavity then as long as your house isn't exposed to wind driven rain and your cavity and brick ties are clear then that's a fairly cheap and easy fill. Still needs a pro as the drill lots of holes and use a machine to blow the fill in.

If you have solid walls then it's usually a pro job. Either external insulation and render, or a internal refurbishment with insulated plasterboard. Both expensive and messy.
Ok, makes sense then, I'll have to investigate what my wall construction is. Probably a dumb question, but what's the best way to find out? From the outside it looks like the whole house is 'normal' brick construction.....

Scabutz

7,693 posts

81 months

Thursday 11th January
quotequote all
UTH said:
Ok, makes sense then, I'll have to investigate what my wall construction is. Probably a dumb question, but what's the best way to find out? From the outside it looks like the whole house is 'normal' brick construction.....
Couple of ways. Check the EPC if you have one. The assessor would have looked at the wall construction.

Otherwise look at the brick pattern. If its a regular pattern with each brick lengthways it's probably a cavity. Uneven with bricks laid sides ways, probably solid brick.

Also look at the window recess. If the distance from inner wall to outside is bigger than 260mm its a cavity.

cerb4.5lee

30,949 posts

181 months

Thursday 11th January
quotequote all
soupdragon1 said:
Anecdotal story. We built our house just 9 years ago and didn't take the option of UFH, choosing rads instead. That was based of my sister's experience, where she had to get a duel fuel stove in her kitchen/diner/lounge living space. She said it just never felt warm enough in winter. Hers was a new build too, a couple of years earlier.

I don't know much about UFH to be honest, but it was enough to put me off and go with rads.
UFH is nice because it holds onto the heat far longer than rads when you switch the heating off. The only trouble with it...it needs hours and hours to heat up in the first place though. I only said to my missus last night that I'd like rads in the kitchen/middle hall as well as UFH in an ideal world. We only have UFH in those 2 rooms currently.

Sometimes you just want to stick the heating on for an hour or 2 to take the edge off, but if you did that the Kitchen/hall would still be freezing in our house though, because the UFH needs at least 6 hours to start coming through with our set up.

usn90

1,424 posts

71 months

Thursday 11th January
quotequote all
This is all very interesting, we are having a big remodel of our downstairs, of which a few walls will be coming down and big open space kitchen/diner.

UFH was high up on the list, especially as it will be wooden flooring and I have Raynauds in my feet, will ponder on this now

Trustmeimadoctor

12,699 posts

156 months

Thursday 11th January
quotequote all
Ufh is better than rads you just need to understand how it works don't expect rapid temp changes ic your using if in a big slab!

cerb4.5lee

30,949 posts

181 months

Thursday 11th January
quotequote all
Trustmeimadoctor said:
Ufh is better than rads you just need to understand how it works don't expect rapid temp changes ic your using if in a big slab!
I think the previous owner of our house just kept the UFH ticking over, and he kept the thermostat at 18 degrees. Whereas I tend to heat it right up to above that and then turn the thermostat right down so it goes off. But I don't honestly know which is the best way of doing it really.

Cotty

39,659 posts

285 months

Thursday 11th January
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I think I might need to turn mine up a bit. My olive oil froze in my kitchen overnight.

UTH

9,008 posts

179 months

Thursday 11th January
quotequote all
cerb4.5lee said:
Trustmeimadoctor said:
Ufh is better than rads you just need to understand how it works don't expect rapid temp changes ic your using if in a big slab!
I think the previous owner of our house just kept the UFH ticking over, and he kept the thermostat at 18 degrees. Whereas I tend to heat it right up to above that and then turn the thermostat right down so it goes off. But I don't honestly know which is the best way of doing it really.
My kitchen hasn't hit the set temp of 19 degrees since Sunday, despite it working 24/7.
As mentioned my house is poorly insulated, and some have said maybe the system wasn't actually specced correctly (although I do struggle to believe that given how many systems they install). I do maintain that there's only so warm an UFH system can get a room when it's fighting against poor insulation etc.
Eg put underfloor heating in your garden shed and it's never going to be warm in there!

cerb4.5lee

30,949 posts

181 months

Thursday 11th January
quotequote all
UTH said:
cerb4.5lee said:
Trustmeimadoctor said:
Ufh is better than rads you just need to understand how it works don't expect rapid temp changes ic your using if in a big slab!
I think the previous owner of our house just kept the UFH ticking over, and he kept the thermostat at 18 degrees. Whereas I tend to heat it right up to above that and then turn the thermostat right down so it goes off. But I don't honestly know which is the best way of doing it really.
My kitchen hasn't hit the set temp of 19 degrees since Sunday, despite it working 24/7.
As mentioned my house is poorly insulated, and some have said maybe the system wasn't actually specced correctly (although I do struggle to believe that given how many systems they install). I do maintain that there's only so warm an UFH system can get a room when it's fighting against poor insulation etc.
Eg put underfloor heating in your garden shed and it's never going to be warm in there!
Ours isn't too bad in fairness. It was on 9 hours yesterday and the middle hall got to 22 degrees, and the kitchen got to 20.5 degrees. The heating has been off since 10pm last night, and the kitchen is 19 degrees and the middle hall is 20 degrees currently.

UTH

9,008 posts

179 months

Thursday 11th January
quotequote all
cerb4.5lee said:
UTH said:
cerb4.5lee said:
Trustmeimadoctor said:
Ufh is better than rads you just need to understand how it works don't expect rapid temp changes ic your using if in a big slab!
I think the previous owner of our house just kept the UFH ticking over, and he kept the thermostat at 18 degrees. Whereas I tend to heat it right up to above that and then turn the thermostat right down so it goes off. But I don't honestly know which is the best way of doing it really.
My kitchen hasn't hit the set temp of 19 degrees since Sunday, despite it working 24/7.
As mentioned my house is poorly insulated, and some have said maybe the system wasn't actually specced correctly (although I do struggle to believe that given how many systems they install). I do maintain that there's only so warm an UFH system can get a room when it's fighting against poor insulation etc.
Eg put underfloor heating in your garden shed and it's never going to be warm in there!
Ours isn't too bad in fairness. It was on 9 hours yesterday and the middle hall got to 22 degrees, and the kitchen got to 20.5 degrees. The heating has been off since 10pm last night, and the kitchen is 19 degrees and the middle hall is 20 degrees currently.
I think my kitchen struggles as the actual floorspace available with the heating pipes under it isn't actually that big, plus all the cabinets on one side of the kitchen back onto the wall facing into the rear garden, so it's probably bloody cold - when I open a cupboard to get plates out it's often pretty bloody freezing in there. I'm going to try sticking rock wool in the void below all the cabinets, see what that does.

Trustmeimadoctor

12,699 posts

156 months

Thursday 11th January
quotequote all
Ufh should just tick over if it's in a slab if it's overlay it's a lot more dynamic and reacts like (high temp ) radiators


Trustmeimadoctor

12,699 posts

156 months

Thursday 11th January
quotequote all
UTH said:
cerb4.5lee said:
Trustmeimadoctor said:
Ufh is better than rads you just need to understand how it works don't expect rapid temp changes ic your using if in a big slab!
I think the previous owner of our house just kept the UFH ticking over, and he kept the thermostat at 18 degrees. Whereas I tend to heat it right up to above that and then turn the thermostat right down so it goes off. But I don't honestly know which is the best way of doing it really.
My kitchen hasn't hit the set temp of 19 degrees since Sunday, despite it working 24/7.
As mentioned my house is poorly insulated, and some have said maybe the system wasn't actually specced correctly (although I do struggle to believe that given how many systems they install). I do maintain that there's only so warm an UFH system can get a room when it's fighting against poor insulation etc.
Eg put underfloor heating in your garden shed and it's never going to be warm in there!
As you say it's poorly insulated there are a few ways to fix it
Put more length of pipe in the floor
Run the water hotter through the ufh
Or insulate!


if you have heatloss of 3kWh @ -3 then the system needs to be able to emit at least that to maintain the temp

If the system was only designed to emit 2kWh then the room will NEVER get to temp when it gets to that temp outside


UTH

9,008 posts

179 months

Thursday 11th January
quotequote all
Trustmeimadoctor said:
As you say it's poorly insulated there are a few ways to fix it
Put more length of pipe in the floor
Run the water hotter through the ufh
Or insulate!


if you have heatloss of 3kWh @ -3 then the system needs to be able to emit at least that to maintain the temp

If the system was only designed to emit 2kWh then the room will NEVER get to temp when it gets to that temp outside
Yep, sounds about right from what I experience here. I think you've advised me previously - I would be interested to know if they did factor in things like this when speccing the system and did put more pipe in the kitchen.....I know there is a laminated SOMEWHERE in this house that has that info on it, maybe I'll hunt for it.

Trustmeimadoctor

12,699 posts

156 months

Thursday 11th January
quotequote all
They should do but seeing as plumbers/heating engineers seldom do heat loss calcs either.....

Hoofy

76,510 posts

283 months

Thursday 11th January
quotequote all
Cotty said:
I think I might need to turn mine up a bit. My olive oil froze in my kitchen overnight.
I think you win the thread.

However, your place isn't as cold as someone I knew from Sunderland. His kitchen was so cold that the dishwater in the sink froze so he couldn't access a teaspoon to stir his tea.

Sheepshanks

32,922 posts

120 months

Thursday 11th January
quotequote all
Sheepshanks said:
Our house seemed to take a lot of warming up this morning vs other mornings - even after the heating being on for 90 mins it was still only 16C in our bedroom and I really feel the cold. No idea why it was so bad, every way I could check the outside temp shows it showed +1C, although it was quite frosty this morning.

Have to be up earlyish tomorrow and I'm thinking of just leaving the heating on.
I left the heating on last night - backed the temps (on Tado's) down to 18C overnight. Normally 21C. Was perfectly comfortable getting up this morning.

Used quite a lot of gas though - 112kW, normally on a coldish day we'd be 70ish. Did reheat the hot water after granddaughter's bath last night too, which wouldn't normally do in the evening.

Annoyingly the rad in our bedroom in the NE corner of the house cycled a lot and it's the one rad that's noisy with expansion and contraction.

Be interesting to see what today's use is without the boiler having to run at for a few hours at a high output to warm the place up.