It looks like we'll install our heating/cooling after handover now, and get a small credit back from the builder
Apparently we need to get the builder to install a "3/4 inch 90mj gasline to the roof/ceiling" (oh and a double powerpoint and light). Does this sound right? Would this gas line specification/size be standard for any ducted heating system, or be specific for the heating system the company is quoting us for?
Also does anyone know if the 3 phase power run just goes to the condenser outside, or does it go to the heating/fan system in the roof as well?