Browse Forums Heating, Cooling & Insulation Re: Heating & Cooling for established home- what do you sugg 4Oct 26, 2007 5:52 pm Dynamic Heating & Cooling - http://www.DIYheating.com.au DIY Ducted Heating & Cooling Systems DIRECT to the public Re: Heating & Cooling for established home- what do you sugg 5Oct 30, 2007 12:08 pm Roof insulation is very important, so is removing the 'super-heated-hot-air' from your roof space. To make a difference you need to replace the hot air - to cool it - every 15 min (or 4 times per hour). You have options like wind turbines and exhaust fans, just make sure you know how much air they extract and that you are changing the air in your roof every 15 min (minimum). this means you might need 2 or 3 units on your roof.
Wind driven roof vents are less reliable, as they don't move as much air if its not windy. The electrical wiring on exhaust fans can be costly. But there is a new option on the market which has build in PV cells and is powered by the sun. This product has a very high extraction (exhaust) rate, does not require power and is very good quality. Roof Ventilation is important to help with the performance of air-con and to help prevent moisture during winter. When installed with good insulation a good roof exhaust system will make a difference. Check it out here... http://www.solatube.com.au/asp/index.as ... -solarstar Does anyone have a suggestion for a good hydronic in slab heating speacialist who may be able to help me with an existing system and wether or not it may need a seperator… 0 3448 We already paid for somfy motors for the blinds. The quote above was purely for “pre-wiring” so the blinds company can install the motors and blinds. That’s why we… 5 8013 Looking to start the journey of becoming an owner builder in SA. Feeling pretty (overly) confident on the building and construction details, but really struggling to find… 0 5784 |