Browse Forums Heating, Cooling & Insulation 1 Feb 09, 2011 12:49 pm Hi all, I'm sure this has been discussed here, so apologies. Ther front of our house is basically two large rooms - one kitchen-dining and one loungeroom. They are joined by two doorways. If I put a split system (of appropriate power) in one room, can I expect the effects to move through into the other room? Or is this a pipe dream? Cheers, HC Re: Split system - effective through into other rooms 2Feb 09, 2011 2:52 pm We had a single unit split system in a previous house for both heating and cooling. We did get a reasonable effect throughout the closer rooms although the best effect was obviously in the main room The Harder You Try - the Luckier You Get ! Web site http://www.anewhouse.com.au Informative, Amusing, and Opinionated Blog - Over 600 posts on all aspects of building a new house. Re: Split system - effective through into other rooms 3Feb 10, 2011 6:10 pm We have a split system in the lounge/family room and found putting a pedestal fan on oscilate in the intersection of the hallway and lounge pushed a fair amount of cold air down into the bedrooms. The main room was coldest, but it did make a big difference in summer in a small 3 bedroom house. Re: Split system - effective through into other rooms 4Feb 10, 2011 6:45 pm Much thanks for your input. Yes, I'm getting the idea the answer tio my initial post is 'no'. One air conditioned room doesn't really move into the next room easy. Cheers. Any other input on this? HC Re: Split system - effective through into other rooms 5Feb 10, 2011 7:21 pm we have a s/s in the dining area to cover the dining/kitchen/living which is all one big space. there are double doors from this space into the rumpus, and though the effect isn't as good it still does cool down the rumpus too. we did make sure we got a system powerful enough to cover the whole room area/volume though, and we have ceiling fans in both rooms to help the air flow through. "Your emotions are the slaves to your thoughts, and you are the slave to your emotions." — Elizabeth Gilbert Living in our new house. Currently scaping the land. Re: Split system - effective through into other rooms 6Feb 10, 2011 9:57 pm I agree that having one main unit in a room just doesn't get the following rooms much cooler. Better than nothing - yes definitely - but not brilliant. You may want to consider if you have the ability to get a single, high power, outdoor unit with two inside units and put them in each room. They're a little more expensive to buy and install but could be a reasonable solution. SK Build thread: viewtopic.php?f=31&t=34120 Handover 23 Dec 11 Squatting 21 Dec 11 Fixed 12 Oct 11 Plastered 31 Aug 2011 Framed 7 June 2011 Site Start 7 Feb 2011 Land Titled 18 Jan 2010 Land Deposit 25 Jun 2009 Re: Split system - effective through into other rooms 7Feb 13, 2011 8:46 am Simple answer = No. Split systems are recirculating in that the air they blow out is returned to the unit for re-conditioning. There will be a natural spill into adjoining rooms but they are designed to condition one area at one time. You will find some benefit to adjoining rooms but not properly 'conditioned' space. You get what you pay for! Re: Split system - effective through into other rooms 8Feb 15, 2011 11:36 am You'll get some effect, we have a 400m2 house with only one 8.1kW split system in the main room, the thermal mass of the house keeps the temp fairly consistent but obviously in Adelaide after a few days at 40 degrees it heats up, so the split in the main room can cool down the main room to freezing and then the rest of the top floor (roughly 250m2) to a comfortable temp by convection. In winter however we have a heat shifter from the main airconditioned/wood fire heated room to the second lounge, dining, pool room etc which is very effective. Have you considered a heat shifter? (the cost however might be as much as putting a second head on the split system though). Re: Split system - effective through into other rooms 9Mar 25, 2011 10:33 pm Cooling upstairs by convection - please explain. I am not arguing your actual situation, just curious. You get what you pay for! Re: Split system - effective through into other rooms 10Mar 27, 2011 1:58 pm To answer the OP, basically, No, conditioned air will not (naturally) flow through doorways etc, but can be coaxed with pedestal fans or the like..... MagicMuppetMan Cooling upstairs by convection - please explain. I am not arguing your actual situation, just curious. Me too.....We have a LARGE open-plan area with a VERY LARGE A/C servicing it, with a mezzanine-style loft area. Even with the A/C on flat-out, with the downstairs area cold enuff to hang meat in, the loft area receives close to no benefit at all. However, in winter it's really warm up there, so we hang a pedestal fan over the balcony to force the heated air back down to the living area. This procedure makes the whole area as "warm as toast" !! P_D . Block settled 07 June 2011 Our little piece of the Interwebs on HomeOne....... viewtopic.php?f=31&t=48577&start=0 Re: Split system - effective through into other rooms 11May 10, 2011 6:49 pm From my experience in a few different homes, if you install in open areas then rooms opening directly into the open areas can be cooled effectively. I had a 5 bedroom house (single storey) that was completely cooled with just 2x6.5kw split systems in the open areas. If you had a room that got particularly hot (e.g. north or west facing) then perhaps not so much. If there is hallway involved then not. Upstairs/downstairs doesnt work to well either. Thanks for your advice. So far i have not noticed any issues with doors and windows. Builder advised they will organise drainers to inspect 2 weeks ago but no further… 7 17882 The last home I lived in didn't have a pool and when i went to sell it the agents were not happy, even telling me to put one in to sell the place. 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