I know this is an old post but wanted to add my tuppence worth anyway!
I too have noticed the upside down flue on the worcester vertical flue range, its still used that way today. Im not sure why, but the spreading of flue gasses sounded plausable!!
The comment about the engineer not commissioning the boiler right is slightly wrong tho! The worcester range is so called "pre commissioned" and co2 levels set at the factory. Worcester only ask that we get 18mbar minimum gas inlet. We are only required to set or adjust the co2 level on servicing the boiler or changing the fan or gas valve. etc.
I too have noticed the upside down flue on the worcester vertical flue range, its still used that way today. Im not sure why, but the spreading of flue gasses sounded plausable!!
The comment about the engineer not commissioning the boiler right is slightly wrong tho! The worcester range is so called "pre commissioned" and co2 levels set at the factory. Worcester only ask that we get 18mbar minimum gas inlet. We are only required to set or adjust the co2 level on servicing the boiler or changing the fan or gas valve. etc.
