What temp do you run your boiler at?
edited 8 December 2017 at 12:47PM in Energy
31 replies 263.1K views
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Hi: welcome to MSE. No need to shout..we can hear you in the cheap seats.;) I hear what you are saying, most of which I've said (and others) on here over the years.
I would welcome the return of gas apprenticeships and stricter (and consistent) regulation of the industry.
I am sorry Mr Ted but that advice to run your system 24/7 for cheapest bills is absolutely incorrect and very bad advice on a money saving website
There are numerous sources that will state you are incorrect - including the Energy Saving Trust.
The lower the temperature and the shorter the time heating is on - the lower the bills.
Your 'theory' contradicts the Laws of Thermodynamics and it has been raised countless times on MSE. Let us take an example:
If you were to leave your house unoccupied for 2 years would you leave the heating on 24/7 so the heat will be maintained and it will be cheaper than switching it on when you re-occupy as you do not have to heat up from cold?
How about 1 year? 1 month? 1 week? 1 day? 12 hours? 1 hour? at what point do the Laws of Thermodynamics cease to apply?
Then my house and the way I heat it are the point because it was dearer to have my heating on timed than it is to run it the way I say I do.
You can have a boiler on all day long at a low heat output and it may never heat up depending on heat loss, that would be dearer than actually heating it up and then maintaining the heat at a high temperature output of the system?
Until the examples are run simultaniously on 2 exact same systems and propertys then I dispute your theory due to what I experience and as others have!
And if we are talking about theory the last 2 paragraphs are pure lunacy in there pertinence to the question, although I would recommend that a minimum heat level is maintained to prevent damage to a properties integrity if left for a long period?
However I think we are talking about occupancey?
Right now, my boiler output is 50 degrees, and the return pipe feels like 30 degrees. Outdoor temperature is 6 degrees, indoor 18 degrees, target temperature 20. The weather compensation mechanism is working beautifully. I'm getting the most heat out of the gas I pay for, and I don't have to fiddle with the boiler, because it works it out for itself.
Now your talking a different subject that not many Domestic Gas Engineers understand.
Compensators and Optimiser controls
they are used widely in the Scandinavian countries and here in Commercial properties and are not particularly availble or popular in the Domestic market.
Why, the Price?:eek:
Thre is also another aspect of control that is never given credence for the same reason, zoning of heating systems in domestic properties!
Mine is, seperate upstair and downstairs zones each individually controlled by RF timer/thermostats, but the system runs 24/7 and thermostats are never set below 18;)
Heat rises so the upstairs zone is hardly ever on
Because it was instaled by a Professional, ME
With Glowworm, you just have to buy
1 x Smart Wiring Centre £62
1 x Climapro £52
1 x Outdoor Sensor £25
to activate weather compensation.
Without weather compensation, you still have to buy a two channel programmer any way, for say £50. So the difference in parts is about £90.
I have four zone valves, two for hot water cylinders, and two for heating: ground and first floor. I use a Honeywell ST9400C two channel programmer for the first floor heating and cylinder zone valves.
The Glowworm control system is a low voltage setup, so integrating the extra zone valves was somewhat tricky. Glowworm Smart Wiring Centre example wiring diagrams only support one DHW zone valve, and one heating zone valve.
Have to agree absolutely with Cardew. Running a heating system to produce heat that you cannot use - because you are out or wrapped up in a warm bed - is utterly pointless and is a waste of money in every house where it has been tried. If yours is different, then that's fine, but I can't work out how.
Weather compensation and a proper programmable room stat are worth looking at, but don't produce heat that you can't benefit from.
I think you'll find that the current Part L Regs give it a lot of credence, to the point where it is a requirement.
In fact I just timed it and it was just on for precisely 5 minutes before switching itself off again
Regular savers earn 6% interest (HSBC, First Direct, M&S) Loans cost 2.9% per year (Nationwide) = FREE money.