gas rate, bigger meter?

[marleyco]

HI,
Had to pull the school book out. on this one.
Have a keston 55kw system boiler, 300 litre unvented tank, approx 150 m2 under floor heating and 14 medium sized radiator's as specified by architect.
On top of that a range cooker and a combi boiler to be fitted at a later date in a granny flat above garage.
Dilemma.... according to book, 55kw =5.1cm3. Leaving 9.7 kw to play with as gas meter max 6cm3.
As I see it I'm hugely under to accommodate the combi, hardly enough for the range which is pos between 10 to 15kw.
Am I right in in my thinking that the meter isn't big enough or do I need to go back to school. All my gas work to date, I haven't been faced with this kind of gas consumption.
Any thoughts of what to do appreciated.

 

[gasmarc]

I agree I would have a guess its undersized

 

[marleyco]

Thanks gasmarc, I have run a gas pipe to garage as I was under pressure to get it done for back filling. It's an outside built in wall meter box, don't know if a bigger never will fit or maybe to get another meter installed in garage.

 

[gasmarc]

Is that not deemed a commercial job ?

 

[marleyco]

It's after the meter that I run it. the meter would be national grid or someone.

 

[gasmarc]

I have a job with a c55 that is a nightmare , Yes its the suppliers job worth a call on monday

 

[GrahamM]

Is that not deemed a commercial job ?

Does domestic not cover upto 70KW appliance on a U16 meter?

 

[Mike Jackson]

You can work on a U16 as long as the system volume is low enough but it doesn't need a great deal of pipe to go over volume as the internal volume of a U16 is .025 cubic metres which only leaves .01 for pipework.

If it's feasible I'd be looking at a second independent meter for the granny annexe.

 

[gasmarc]

is that economy 7 with storage heaters you have there

 

[marleyco]

Thanks guys, I'm not worrying over nothing then!