I'm a bit obsessed with this topic, but I figure this is the least wierd place for that, right? Here's $0.02:
We changed our electric Hot water service over to NG. Back then the NSW govt was giving a rebate for doing so. I spent Morris Iemma's money on a NG outlet in the garage.
If its in your house already, NG is great. It was like moving from bottles to kegging. A bit of coin upfront, but paid for itself by about the 10th brew. There are a few drawbacks of gas though IMHO:
In theory NG $per MJ is the same as electricity. In practice, its much easier to be efficient with electricity. Electric HLT is the go for price, precision and convenience. Also For the cost of a new immersion heater you can get a 2nd hand 18L urn (which is the heater with a vessel on it) Bit safer than the Masterchef branding Iron.
So cheapest to most expensive goes:
Free LPG!
Electricity
Natural Gas
100Kg LPG
9KG LPG
Also, the noise! A mongolian or a NASA makes you raise your voice when having a conversation nearby. Yardy, you must be deaf!
Seriously, You wont find out if its a problem unless you see one in action before you buy it. If you haven't done so already, try and visit someone who has the burner you are keen on. I would have tried for something quieter if I did it again.
Has anyone seen a practical wood fired setup? Short of a campfire with a kettle on it, I wonder if there's a cleaner way to do it?
We heat the house with a combustion stove. The stupid flue pokes into the Garage and warms it nicely, which is great while I'm in there, but a real waste when I am not. :angry: I have often dreamed of wrapping a copper pipe around it for some sort of steam setup.
Energy OCD, its a curse people!