Kw rating. Qn & Pn?

[wild nomad]

Hi there. In relation to Kw ratings of appliances, does anyone know what Qn and Pn stand for? I often see these abriviations on the data badge.

Thanks in advance.

 

[Masood]

If I remember correctly Q is heat input, P is heat output. n is "nominal" which means some variation from stated figures is to be expected..

 

[wild nomad]

If I remember correctly Q is heat input, P is heat output. n is "nominal" which means some variation from stated figures is to be expected..

Thanks Masood. So, would you expect the numbers to be nett or gross?

 

[Masood]

Thanks Masood. So, would you expect the numbers to be nett or gross?

Normally nett I think, but I could well be wrong on that. Never found anything to actually confirm that, including trainers on manufacturer's boiler training days!

 

[dave1]

I always thought it was gross unless it is specified as nett.