Wobbe number

[Bernie2]

Dear All,

Just a matter of interest, this is not for the old hands to answer.

But what is a Wobbe number?

Is it important?

And where would you find the formula put into use on a gas appliance?

 

[jpm]

Dear All,

Just a matter of interest, this is not for the old hands to answer.

But what is a Wobbe number?

Is it important?

And where would you find the formula put into use on a gas appliance?

CV or calorific value,you can find it on your latest bill,I think from memory NG is 38.5MJ/m3 ish.
Yes it's important to show how much heat output there is.