Veissmans appear to be OK. My favourite is this.
You will get different answers from different engineers proably citing the same reasons for their preferences.
But without wanting to sound rude; I don't think you are not budgeting correctly. Obviously I could be wrong, but someone posted a phrase not long ago - champagne ideas, beer money.
What type of installation are we dealing with here? combi swap? conversion from gravuty style system? Scratch installation?
You will get different answers from different engineers proably citing the same reasons for their preferences.
But without wanting to sound rude; I don't think you are not budgeting correctly. Obviously I could be wrong, but someone posted a phrase not long ago - champagne ideas, beer money.
What type of installation are we dealing with here? combi swap? conversion from gravuty style system? Scratch installation?