Thread: Heating & Cooling options/opinions/advice

Chris

Rev cycle heat is not good. 15 x times amount of CO2 compared to Gas for heating
Not to mentioned future cost of dirty Latrobe Valley Power
Go the ducted, gas fired heating system with an add on DX ( refrig ) cooling coil.
Make sure the ductwork and fans are oversized to suit the cooling load.
Upgrade the flex duct insulation to 50mm thick.

If you wanted to save on running costs , consider the following;

A rotary ventilator or two to the roof space that shut off in winter

Day/night zone separation. Switch over when one is not occupied.

Maximise ceiling insulation to keep heat out and in as necessary.

Maximise insulating property of House ( although yours is pretty good) by keeping any North and West sun off the house by way of shading , especially windows.

Blinds, curtains etc to inside windows

Run it at 19 degrees in winter ( put a jumper on ) and 25 degrees in Summer ( It will feel great compared to 40 outside!

Hope that helps

Pete

Thanks very much!

OK, I was leaning towards gas ducted heating, but had no idea that a cooling component could be added to it.

I've already got internal and external blinds installed - The external blinds are a saviour during summer, whereas during winder, retracting them to let the light and sun in is also very handy for warming the house during the day.

Originally Posted by land864

Chris

Rev cycle heat is not good. 15 x times amount of CO2 compared to Gas for heating
Not to mentioned future cost of dirty Latrobe Valley Power

[snip]

Pete

Really ?

any links ?

I've read that if an AC unit had a COP of 4 or better it was equivalent to gas.
The smaller split systems from the good manufacturers exceed this, some are up to 5.71 now, and the big ones from the good manufacturers are very close to equalling it.

Look For The "COP"
You can find out how efficient a reverse cycle air conditioner or heat pump is by looking for its “coefficient of performance” or COP. This usually ranges from 1.5 to 4.5 and the higher the COP is, the more efficient the heater is.
If the heater has a COP of 4 or more then every unit of heat it produces creates the same carbon emissions as gas heating.

Electric vs Gas Heaters - Which Is Best?