how2girl is right, ducted is better. Ducted extracts better and with less maintenance. But it might be difficult or impossible to do, for example in a two storey house with the kitchen in the middle so that there is nowhere for the ducting to go. suzineedsahouse is right, different people have different requirements and what is important for one person might not be important for another person. I have seen a house where a window beside the cooktop was enough for the owner (I did wonder how that works on windy or rainy days). Some people are happy enough with a non-ducted rangehood. Some people insist on a ducted rangehood and are willing to rearrange their houseplan if necessary to ensure they have space to install one. I have heard of people who have chosen commercial rangehoods for their home. I know of people who have a second kitchen outside in their alfresco area which they prefer to use for some of their cooking and sometimes even those have a ducted rangehood. (Btw as far as I know a gas cooktop only affects your choice in regards to how high above the cooktop the rangehood must be.)

Can i contact your sales agent on phone tonight?

Hi all, I'm new to this and would like to any feedback from others who have installed refrigerative air conditioning with ducts under a raised timber floor, and what issues they may have experience by using a common heating and cooling ducts. We are also building a new home that will have raised timber flooring so we can install ducted heating but, in our case, there is no roof space to install ducts in the ceiling in any case because our house will have 2 skillion roofs, one at 15° and the other at 7.5° pitch, both meeting in the center of the house, and running the entire length of the house. The other challenge we have is that half the house along one side will have raked ceilings in the living, dining and kitchen areas and will extend along the entry hall way, whilst the other half of the house where the bedroom bathroom laundry etc., will have flat 2.75m high ceiling and the available roof space will be minimal. The option of ducting the cooling beneath the house is attractive because we also don't need bulkheads.

Hello vjay, the Miele instruction #3 is for the situation where there is a blind closed off bulkhead above, which is not your situation so thats ok. As for your roof space; roof spaces (like underfloor spaces and external wall cavities) are designed to ventilate themselves to remove any condensation or dampness; so to prevent any development of mould, fungi and timber rot and so the roof space you will have will vent. Convection currents that entre under your appliances will move the heat generated by your refrigerator and freezer up into your roof space, so all this is fine without putting extra vents in the front of your bulkhead. Looking at your framing, what I do suggest though, is that you make sure you put some large fine vent plates in the plasterboard opening between your fridge / freezer cabinets and the bulkhead's underside so this grill allows airflow into your roof space but seals off any access into your kitchen by insects or vermin. Hope this all helps, Regards Malcolm.