Browse Forums Heating, Cooling & Insulation Re: Ducted air-conditioning vents 2Jun 18, 2011 7:16 am Hi Cheeky, We have both in our current house, but we specified the round ones so that they could be shut off when room isn't being used. Had a chat to our A/C supplier for new home & they have informed us that they only use the round ones as there is less air noise from them. Got a life, just can't find it! Re: Ducted air-conditioning vents 3Jun 18, 2011 8:05 am Cheeky How do the round outlets compare to square outlets in ducted air-conditioning? I've been told that the square ones are more effective. I'd say out of every 50 ducted systems we do only 2 would be round outlets. Installers love rounds because there's nothing to line up correctly... no straight lines to get exactly square... so nice, easy and quick... We think the square MDO's are better because you can point the vents in whatever direction you want... Re: Ducted air-conditioning vents 4Jun 18, 2011 9:57 am I have the round ones (as are our downlights and lightfittings in the majority of the rooms) - as NRH said previously I love that we can wind them up or down to limit the air in each room. Some things are worth waiting for. Re: Ducted air-conditioning vents 5Jun 18, 2011 9:46 pm Cheeky How do the round outlets compare to square outlets in ducted air-conditioning? I've been told that the square ones are more effective. The advantage of square vents is they allow you to direct the air into specific directions. I have an evaporative aircon so in the bedroom vents are (correctly) located adjacent to the wall furtherest from the window. Within the vent there are 4 sub modules (think they call them biscuits) which can be turned to direct the airflow. So the two biscuits closest to the wall direct air at 90' to the wall and the two closest to the window direct air towards the centre of the room. With a round vent this would not be possible so you would end up with 1/4 of your air being directed towards the wall. In the lounge we use this feature to ensure the air doesn't blow directly at our lounges, but still cools the room down. The square ones can also be closed off by closing the vanes in the biscuits so no real advantage to round on that account. Re: Ducted air-conditioning vents 6Jun 18, 2011 11:23 pm round are usually better for heating and square ones for coloring. The round ones are better at directing the air to the ground(better for hot air). The square ones are better for air to float across the room ( better for cooling). Re: Ducted air-conditioning vents 7Jun 22, 2011 9:22 pm I got some quotes. One insisted that the round ones are better because a) they are modern, b) they are easier to clean c) air float is the same between square and round. Another company said the square ones are more effective for heating. I really don't know... Another thing is the controller. One company insisted on using the optional controller which is supposedly so much better than a switch for the 2 zones. Another company said that the optional controller is a waste of money. What does the optional controller do? optional controller 11Jun 28, 2011 1:47 pm Get IAS touch pad zone controller with 24 volt zone motor. 24v more energy saving Simply the best! Sydney wide. Competitive pricing. Professional Work. DOMESTIC & COMMERCIAL AIR CONDITIONING, COMMERCIAL REFRIGERATION Licence # 260663C ARC Licence # AU32461 Optional zone controler 13Jun 29, 2011 11:38 am Unicorn Air wrote: Get IAS touch pad zone controller with 24 volt zone motor. 24v more energy saving Quote: why/how 24volts more energy efficient then say a 240 volt one. Because 24v Heavy duty motorized damper has 5nm motor with clutch and timer power off function . When zone fully closes and fully opesn 24v gets cut off. Meaning it's got timed power off function . Also automatic default zone function is to ensure a zone is always open and easy plug in cabling with self diagnostic faulty indicator to zone motors. Simply the best! Sydney wide. Competitive pricing. Professional Work. DOMESTIC & COMMERCIAL AIR CONDITIONING, COMMERCIAL REFRIGERATION Licence # 260663C ARC Licence # AU32461 Re: Ducted air-conditioning vents 14Jun 30, 2011 3:20 pm Some 10 yrs ago I had an ****home [oops] built & am going through the plan's now with a new home by another nationwide builder , my question is about those darn square adjustable louvers that are common everywhere , as I have the job of opening & closing them twice a year ,I find they are so darn frustrating 1) when closing off so stop draft's getting the last one into place & seated is just about impossible ,then when they are closed fully you have to take each section out be able to open them,2) then jiggle them back through the frame to drop them down, surely in this day & age things have got more modern ?? I would like to use something more user friendly , the round gas ones seem ok in principle but are not directional also the larger ones used in bigger spaces tend to sag off the ceiling plaster on one corner due to the above . Im not heavy handed either --any help please as you can see by the pic where i have screwed up the corner Like ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ Re: Ducted air-conditioning vents 17Apr 03, 2015 4:33 pm Pulsing – that is a better way to describe it. My work building has the round vents, if I ever get ducted air conditioning install at another house I've already decided these are the vents I will go for. My other complaint with my current outlets is that the pitch isn't adjustable, so in winter combined with my 31 course ceiling height, it is basically ineffective as a heater. The heated air is blown across the ceiling and not down, so all the hot air is trapped at the ceiling. If I walk around with my hands up in the air, my hands are nice and warm, but everything else is cold! Even in the two rooms with standard ceiling height it is pretty ordinary. Very disappointed there. Re: Ducted air-conditioning vents 18Apr 03, 2015 5:48 pm Carter The heated air is blown across the ceiling and not down, so all the hot air is trapped at the ceiling. If I walk around with my hands up in the air, my hands are nice and warm, but everything else is cold! Even in the two rooms with standard ceiling height it is pretty ordinary. Very disappointed there. Sounds like the return hasn't been done properly. The return should be low down, so that the return pulls the lower cold air out thus pulling the warmer air down. You see it all the time where a return has been put in the ceiling. Re: Ducted air-conditioning vents 19Apr 05, 2015 5:37 pm AJW Carter The heated air is blown across the ceiling and not down, so all the hot air is trapped at the ceiling. If I walk around with my hands up in the air, my hands are nice and warm, but everything else is cold! Even in the two rooms with standard ceiling height it is pretty ordinary. Very disappointed there. Sounds like the return hasn't been done properly. The return should be low down, so that the return pulls the lower cold air out thus pulling the warmer air down. You see it all the time where a return has been put in the ceiling. I have return air in the ceiling. I dont think it is the bad. I wasnt too concerned as I have a dual system with re fridge aircond which is always the weakest link. If everything else hasnt been designed properly then I guess it will only make things worse. Because of the air cond the system I had to have good airflow. If it didnt then there could be further problem. Anybody know any good and reasonably priced Air conditioning contractors/companies that could install a ducted air conditioning system in the Central Coast NSW for a small… 0 8992 Hi all, sorting out the ducted air con for a 350sqm double story house. Does this placement sound reasonable to you? Also, I plan to have 6 zones I think. Living room… 0 0 Hi all, sorting out the ducted air con for a 350sqm double story house. I think i plan to have 6 zones I think. Living room (mainly for entertainment so not used often),… 0 0 |