Browse Forums Eco Living Re: Solar hot water boost 8Aug 31, 2009 9:32 am Where you are coming from is where you are going to... Re: Solar hot water boost 19Mar 19, 2010 10:39 pm Thanks Dymonite, you have pretty much confirmed what I said, for 3months of the year your solar can produce far more hot water than you can use – people actually use far less hot water in summer. Your booster will be required for the other 9 months, especially in the middle of winter when the demand for hot water is highest, and your solar provides the least. If you have 3 or more people in your house your booster will use more electricity in those 9 months than one of our heat pumps would use over 12 months. For a more thorough explanation have a look at See http://www.skylineenergy.com.au/our solution.php We use the same technology for hydronic heating systems - much more suitable than solar Re: Solar hot water boost 20Mar 19, 2010 10:42 pm dymonite69 This is the energy loss by a HWS storage tank. HWS efficiency It is about 15%/24 hours. However, note that PV is only around 15% efficient at converting solar energy into electrical energy. Solar HWS vary between 40% (worse) to 80% (best) at turning solar energy into thermal energy. In other words a 300L solar HWS provides as much energy in kWh as a 1.5 kW PV system (3500-3800 kWh/year) That figure of 15% loss is very high . . . ours rate at about 5% 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 14538 I want to build a decking to the drawn shape outlined in black. The problem is how close can I build to the gas hot water unit? Will I be able to build around it and be… 0 20472 DIY, Home Maintenance & Repair Hi, I've got a brand new (2nd hand) Bosch Hydropower 16H tankless hot water heater. Since it was installed I have noticed it leaks a lot. I took the cover off and it looks… 0 24416 |