Need age of boiler
Potterton Statesman 38-44KW
serial no. L+B044400001AP

Sandie, January 2010

There's a list of boilers here - by manufacturer...

http://www.homeheatingguide.co.uk/efficiency-tables.php

You may need to look under
Baxi Potterton
Potterton
Potterton International Heating
Potterton Myson

I think 38-44kW means a power rating in Kilo-Watts rather than a model number

Peccavi, January 2010