Central Heating On 24/7

lstar337

captainhindsight wrote: »

In a well insulated house with huge thermal stores, using low temperature flow and re turn heating systems with underfloor heating and heat recovery ventilation systems. It is most efficient to maintain a temperature rather than allowing the property to become cold. First because it won't cool down much in the 6-10 hours it is empty anyway. If it was left long enough to become cold it would take an age to get to a comfortable temperature which is not practical.

May I ask what the point of a thermal store is in a house where you never turn the heating off?

What your are describing is the equivalent of a storage heater where the charging element is never turned off, aka idiocy. :rotfl:

captainhindsight_2

lstar337 wrote: »

May I ask what the point of a thermal store is in a house where you never turn the heating off?

What your are describing is the equivalent of a storage heater where the charging element is never turned off, aka idiocy. :rotfl:

:rotfl: can you not read :rotfl:

It's about maintaining a constant temperature not leaving the heating on :rotfl: what an idiot

captainhindsight_2

Andy_WSM wrote: »

Thought I heard something making a whining noise. Must have been mistaken.

Derp derp derp

captainhindsight_2

DTDfanBoy wrote: »

What complete rubbish :rotfl:

The warmer a house is the faster energy is lost FACT

Energy used reheating the house will always be less than the energy which would have been used to maintain a constant temperature in the house FACT

If you think you know otherwise you may want to have a browse at this

http://en.wikipedia.org/wiki/Second_law_of_thermodynamics

have you not heard of insulation heat stores and thermal gain etc etc etc clearly not! Lol.

DTDfanBoy

captainhindsight wrote: »

have you not heard of insulation heat stores and thermal gain etc etc etc clearly not! Lol.

I've never heard of insulation heat stores, my best guess is that they are stores that sell both insulation and heaters

I'm not 100% sure what you mean by thermal gain, but I fail to see how it has can have any relevance whatsoever to the discussion at hand

captainhindsight_2

DTDfanBoy wrote: »

I've never heard of insulation heat stores, my best guess is that they are stores that sell both insulation and heaters

I'm not 100% sure what you mean by thermal gain, but I fail to see how it has can have any relevance whatsoever to the discussion at hand

Neither have I because they dont exist!

Insulation, heat stores, thermal/solar gain etc etc.

The discussion is about maintaing the same temperature 24/7 or allowing the house to fluctuate in temperature. So yes it is relevant...

lstar337

captainhindsight wrote: »

what an idiot

Glass houses my friend.

captainhindsight_2

lstar337 wrote: »

Glass houses my friend.

not very efficient, prob best not to leave the heating on. but great solar gain! so could maintain a high temperature during the day

DTDfanBoy

captainhindsight wrote: »

Neither have I because they dont exist!

Insulation, heat stores, thermal/solar gain etc etc.

The discussion is about maintaing the same temperature 24/7 or allowing the house to fluctuate in temperature. So yes it is relevant...

Levels of insulation, solar gain etc have no bearing as they do not alter if your heating is on or off.

A house kept at 20c 24/7 will always lose more energy than it would if it was kept at 20c for 23 hours and allowed to cool to 19.5c for one hour a day

Forget your fancy thermal stores and solar gains it's all completely irrelevant, at the end of the day it's basic physics, the bigger the ΔT the bigger and faster the loss from the system must be :money:

As you apparently achieved an A level in Physics surely you must remember dropping the ice cube into a beaker of water in third form

Horizon81

OP, havent read all of this but the school of thought behind leaving your heating on all day assumes you have a thermostat. You set your ideal temp and leave it there, and leave the heating on. The idea is that it takes less energy to maintain this temperature rather than having the heating off for a long time, letting the house go really cold, then having the boiler heat the house from this low temperature.
I'm not sold on the idea myself as the boiler would end up cycling a hell of a lot of times, and I like the house at the hotter end of the spectrum. No value to me in maintaining that toasty warmth when I'm at work all day, and given the power of modern boilers and my oversized radiators, it doesn't take long to heat the house from a low temp, e.g. 12 degrees at the min.