Ok I asking if any one as any information to determin the following running cost,s and witch is the most cost efective one to run through the Winter
Electric direct Heating there is the following 1. Electric Panel Heaters 2. Oil Radiators 3. Heat Storage Heaters 4. Storage Heaters fan powered or without fan and last Electric Boiler for combernation hot water and room heating with radateor All Walls and celling 25cm .035 W.mK floor area 46 m2
insulated floor .35 W.mK ceiling high 2.4 meter D.Glezed windows 24 m2 thanks for any information recived

If your only choice is electric then if you can get the night rate electricity this will be the cheapest, but they only guarantee 8 hours/day, although we usually get about 10 hours, a bit more on Saturdays and all day on Sunday. So if its down to night rate then storage heaters will be the cheapest. A fan type will only allow the heat to be accessed faster, so perhaps a bit more flexible. To make storage heaters work properly you will have to work out the heat losses per 24 hours and size the storage heaters accordingly.

Otherwise any type of electric heating is 100% efficient at the point of use since all power used is turned into heat. (electric motors for example are not 100% as they get warm in use and this warmth is not wanted therefore wasted energy). So once you step away from night rate (cheaper energy) then any form of direct electric heating will be the same, just the way the heat is delivered changes, but the way the heat is created remains the same in each case. (resistance wire getting hot). Storage heaters are needed for night rate electricity, the rest would be personal choice with no difference in Kwh running costs.

You say direct electric heating - does this mean you have rules out heat pumps. - they have a much higher initial cost but cheaper running costs and if combined with heat storage can be used with night rate electricity, but they need to be designed properly otherwise they can be a disaster.

Thanks Peter information greatfull for all responding to subject, UnitsI will take advice and go with Night Storge Units, I had it mind just to add Split Air Coditioner to the system. not for heat pump,
Thanks again Peter digger

If you are going for night storage then I would probably go with a standard electric water heater (Hungarian bojler) and storage heaters rather than a combination boiler which would need heat storage anyway.

What is the construction of the wall to get .035 W.mK

Have you considered a wet electric system?

Peter the way I came to the rough concloision= Timber Frame 15cm+ outer Stone Clading two waterprofe skimcoats incorperate Masternet over Frontrock 100mm + 12mm OSB Deltrock 150mm fix Solflex tetőfólia fix 50mm×25mm tanlized batten to carry 2×12mm Rigips Fire Barerar P.Board. The Celling as in walls two leyers of Rigips Fire Barerar P.Board next up= Solflex tetőfólia next up Deltrock 150mm betwean celling joist then over lay with a further 150mm of Rockwool I am only assuming these numbers till the Archiecte do,s the calcalations thanks again Peter digger

Hi Digger
If you use this link
http://www.vesma.com/tutorial/uvalue01/uvalue01.htm
it gives a simple calculator for u values for typical building materials, so for your ceiling assuming deltrock is the same value as rockwool the table gives a value for 300mm insulation as 0.13 W/m2K. Its useful to play with to see what makes the difference to the heat loss.

RH. Whilst a wet electric system is an option I feel that one of the advantages with electric heating is that there are no worries about freezing in the winter, this of course would be lost with a wet system.

Thanks Peter for Link I will have a go next time able to get to internet as traverling back to my place Thursday there is Signel up there in the Grape Fields, at present trying to finsh of the cost of the new build aming to get belowe the quotation of 6.5 mill. for building only on a turnkey plan. Yes a Wet system was consided but if away possibily of frezing, I am avoiding this by using night storge units at least I think if I am away set them for Frost. Thanks again Peter digger

Wouldn't you just do the same as gas central heating and add antifreeze?
I know that they are increasing in popularity in the UK as they are supposedly more economical than the storage heaters.

The problem is that if you want to use the cheaper night rate electricity then you need to store the heat for the daytime, with a wet system the easiest storage method is a storage tank which needs to be 2000+ ltrs. (as used with log gassifing boilers) putting antifreeze in that much water is serious money. Also to minimise losses this would need to be within the heated envelope of the house. I know storage heaters are also in the house but they are spread around so tend to be less intrusive than a 2000 ltr tank