Air vent sizes?

12.7 Kw heater & 7.9Kw water heater
I will be putting an outside vent behind the kitchen units & a vent into the opposite wall in the kitchen (into the cupboard containing the heater)

DAZ_40
June 2008

you need to tell us the kilowatt input from the data badge,

ie 16kw heater 5.39kw water heater if applicable??????

there is generally badge stuck onto side of heater inside behind grill and if water heater is installed that usually has a metal data badge attached.

how many internal doors will you be venting through

iain
June 2008