Browse Forums Eco Living Re: Heat Pump Hot Water System - Noisy? 3Aug 09, 2009 10:46 pm Where you are coming from is where you are going to... Re: Heat Pump Hot Water System - Noisy? 4Aug 10, 2009 12:07 am If you heat 300L of hot water a day it would normally cost about $420 with electricity Do you have your heart set on evacuate tube over flat plate? I modeled the improvement in performance: viewtopic.php?p=130244#p130244 It might be more efficient in winter but all this mean is that you will heat 98L of water instead of 62L each day. You still leaves have to heat the other 200 L with electricity. This represents a heating saving of 10c/day or no more than 40$ per year. Flat plate efficiency catches up quickly during the warmer months as well. If you refer to the Your Home technical manual, heat pump slightly edges out solar for lowered energy consumption ~ 15% improvement. Their prices vary from below to above equivalent solar systems based on how quickly that heater can recover. Often solar system boost on off-peak rates (which are about half of peak rates). Using electricity during peak hours for heat pump or boosting is more expensive. the sun master is the solar heating to "warm" the water in the tank the S26 is your hot water system which will heat the water (25 degrees?) so with both turned on you… 2 14073 instantaneous is three phase and draws heaps of current, the efficiency comes from not storing it so you don’t lose heat to the environment. The problem is it is not… 5 1208 Hi, I have a double and whenever the wind picks up I can hear alot of banging in certain areas of the house. I've had a look round and can't see any obvious issue but… 0 10649 |