Browse Forums Heating, Cooling & Insulation 1 Jan 12, 2012 10:39 pm Hi A question for those with reverse cycle airconditioning - could you please let me know what shape vents you have in the ceiling? Is it the set one that you can't adjust like this: http://www.fujitsugeneral.com.au/images ... 30x250.jpg or the grid one that you can redirect/close like this: http://3.bp.blogspot.com/_4jl0FGnx20Y/T ... ne+006.JPG Sorry for the links, I've just googled images of them I don't have them saved to upload. Thanks in advance, I am trying to work out what is better or at least what is more common for ducted reverse cycle. Re: Reverce cycle aircon - ceiling vent shape 2Jan 13, 2012 6:25 am In our 2nd last home we had evaporative aircon and ducted heating. The heating had round vents and the evap cooling had the 4 louvre vents. The duct were different sized hence the 2 lots of vents. Our last house we had refrigerated aircon added onto the gas heating unit. We only needed 1 vent in the rooms as these used the same size ducts. These ones were round but we could close them off if needed. Hope this helps a little. This thread also answers your question. viewtopic.php?f=20&t=40680 A balanced diet is chocolate in both hands. Melbourne West Our build viewtopic.php?f=31&t=34169 Landscaping viewtopic.php?f=19&t=51147 Re: Reverce cycle aircon - ceiling vent shape 3Jan 13, 2012 7:51 am For re fridge cooling its best to have the square type as these allow cool air to fall better. Round ones are better for heat and they push the air down. In systems that are cooling limited (meaning the cooling system is smaller than the heating) its best to go square. Also the round ones do close much better they still dont work that well in adding more cooling power to the other rooms because the air is still lost in the pipe work. The best way is to add a manual damper at the start of the branch. Re: Reverce cycle aircon - ceiling vent shape 4Jan 16, 2012 4:36 pm B STAR For re fridge cooling its best to have the square type as these allow cool air to fall better. Round ones are better for heat and they push the air down. In systems that are cooling limited (meaning the cooling system is smaller than the heating) its best to go square. Also the round ones do close much better they still dont work that well in adding more cooling power to the other rooms because the air is still lost in the pipe work. The best way is to add a manual damper at the start of the branch. B STAR, I don't agree with your statement. Square or round is a personal preference. They work equally as good at distributing the air (hot or cold). Strangely, south of the Qld border square is most preferable, whilst Qld likes to be a little different and tend to go for only round outlets. Re: Reverce cycle aircon - ceiling vent shape 5Jan 17, 2012 7:51 am Fridgy B STAR For re fridge cooling its best to have the square type as these allow cool air to fall better. Round ones are better for heat and they push the air down. In systems that are cooling limited (meaning the cooling system is smaller than the heating) its best to go square. Also the round ones do close much better they still dont work that well in adding more cooling power to the other rooms because the air is still lost in the pipe work. The best way is to add a manual damper at the start of the branch. B STAR, I don't agree with your statement. Square or round is a personal preference. They work equally as good at distributing the air (hot or cold). Strangely, south of the Qld border square is most preferable, whilst Qld likes to be a little different and tend to go for only round outlets. Just because you don't agree with my statement doesn't mean I am wrong. Yes they both work. However they are suited to different applications, and therefor have different performance for heating and cooling. Re: Reverce cycle aircon - ceiling vent shape 6Jan 17, 2012 10:44 am B STAR Fridgy B STAR For re fridge cooling its best to have the square type as these allow cool air to fall better. Round ones are better for heat and they push the air down. In systems that are cooling limited (meaning the cooling system is smaller than the heating) its best to go square. Also the round ones do close much better they still dont work that well in adding more cooling power to the other rooms because the air is still lost in the pipe work. The best way is to add a manual damper at the start of the branch. B STAR, I don't agree with your statement. Square or round is a personal preference. They work equally as good at distributing the air (hot or cold). Strangely, south of the Qld border square is most preferable, whilst Qld likes to be a little different and tend to go for only round outlets. Just because you don't agree with my statement doesn't mean I am wrong. Yes they both work. However they are suited to different applications, and therefor have different performance for heating and cooling. I don't believe I wrote that you were wrong, I just don't agree. For instance the round outlets we use do not push the air down at all. The air air runs along the ceiling and drops evenly over the room. Strangely in your second paragraph you say by using round outlets the air gets lost in the pipe work (duct?) Re: Reverce cycle aircon - ceiling vent shape 7Jan 17, 2012 5:26 pm Is there a budget your working with ? The plastic rounds are by far the cheapest alternative, when you consider they come complete with fixing clips, and a damper. The plastic square, IMO are ugly, and the aluminium bevelled edge diffusers are triple the price of a plastic round. If you are going for 'looks', why not consider "linear" diffusers/bar grilles. They are more expensive, but look good. How do you remove one of these ceiling air con vents? And is it possible to disconnect the duct joined to the vent from inside the house, without going into the roof cavity? 0 5947 The unit normally clips into a metal plate screwed to the wall, either plate is not flush, or unit not hooked in and could be hanging from the pipes partly, either might… 2 15800 retail its around double the price of a similar sized actron/dakin system from memory, They are excellent systems though. But with how builder gouge on AC/heating, you… 4 13792 |