I own a Radiation Highspeed super 3 gas fire which was installed in my house probably about 35 years ago.

I am having cavity wall insulation installed and wonder if you can let me know the kilowattage of this fire as the installers require this information before proceeding.
Many thanks for your attention.

William, January 2011

Many thanks Carefree. I removed 2 screws from the top - there were none at the bottom and the plate is very visible on LHS. 5.6KW.

William, January 2011

You need to take the wooden case off, by memory, 4 screws, two at the top (in the grill), two underneath at the bottom of the wooden case.

Carefree, January 2011

Thanks Carefree. But how do I find such a plate? Nothing visible from outside.

William, January 2011

I'm assuming you need the information for ventilation purposes?
The data plate (riveted inside the fire) will give and input in BTU's
Basically, if it's under 24,000 BTU input (approx 7KW) no additional ventilation is required as it is covered by adventitious ventilation.

Carefree, January 2011