I have a room with a volume of 196cm2 8m - width 7m - length 3.5m - height i has 4 appliances in 17kw cooker/grill - flueless 32kw boilers - room sealed 11kw fire - opemflue 6kw water heater - flueless i have worked out that 17kw cooker/grill - No vent is required, but openable windows is required 3...
