So a null argument again! FFS.
So a housing association can't guarantee to install and maintain the system properly, therefore you conclude it is an inferior system. You also ignore the down sides of open vented as you are totally blinkered despite the BS alternative thinker label you like to apply to yourself.
As the other thread got locked due to whiny Google warriors complaining to the mods, I should like to point out that you recently advocated using fairy liquid to find gas leaks. And you claim to not have given dangerous advice in the past.
Housing associations
But Dan, if he's a M&E consultant employed by a HA; he has got to justify his huge fees & general BS.
Think of all the BS letters & emails firing back & forward! The poor HA committee members need to cover their arze, just incase they get sued & bawbag here is employed to go down when he makes a complete balls up of the design.
Most HA tenants are dole scroungers, so why have they got any choice in anything?? A combi would always be the cheapest to install & maintain. It's a no brainer!!
But hey, it's a yard stick of his intellect; asking on a DaftyDIYers forum??!!