The ventilation slide rule is an easy-to-use pocket guide that reflects the general requirements of British Standard 5440-2 "Installation and maintenance of flues and ventilation for gas appliances of rated input not exceeding 70kW net (1st, 2nd and 3rd family gases)" – Part 2: "Specification for installation and maintenance of ventilation for gas appliances."
As well as providing essential technical advice, the pocket guide has 2 slide rules, one for open-flued appliances and one for room-sealed appliances, which when combined with the heat input of the appliance, gives quick and accurate information on the ventilation provision both for combustion and compartment cooling (if required).
DL Pocket book incorporating 2 slide rules
22 pages
2 slide rules; one dealing with open-flued appliances & one dealing with room-sealed appliances up to 70kW (net & gross)
5 Illustrations & 7 Tables
Third Edition Fourth Revised – December 2017
ISBN:978-1-902632-51-3
Previous Editions (in reverse order):
Reprinted - June 2012
Third Edition Third Revised – May 2011
Third Edition Second Revised – September 2008 (ISBN: 978-1-902632-51-3)
Third Edition Revised – January 2007 (ISBN: 978-1-902632-51-3)
Third Edition – September 2003 (ISBN: 978-1-902632-51-3)
Second Edition – February 2002 (ISBN: 1-902632-08-7)