It is not different, you have caught me with my tongue in the vice.
At least 'ya got enough testosterone to admit it, and nothing wrong with getting one either, I think me, you, and most others are looking for better ways to provide not just heat, but electrical, and other utilities as well.
I think it is a form of marketing, these rebates.
I always get the impression that the marketing is for done by the folks who have the most to gain, and fossil fuels are what the bulk of America are dependent on. I would like to ease that burden, but don't want to just jump off the grid right now. In fact, I don't plan to do anything yet about where I live in the city, all of my water, gas, and electricity are purchased from the grid.
For me it is that I am trying to devise what I think is the best system possible. Although I don't think there is any perfect system, geothermal looks really good to me, and I have read really good success from people with closed loop systems where their utilities are down to under $100/mo. by using geothermal. I was a victim of Enron, maybe that makes me want to get away from being dependent. I have been planning to use it, and knowing I would spend more, in hopes that it would ease my burden. It is my next house that I will most likely retire to, but that isn't cast in stone yet.
If these systems were all they are cracked up to be would they need to be incentivsed?
Not sure that is true, just that some of these technologies are new, and geothermal is one. Even given total cost, and I know it cost more...but it saves more also.
Where did the idea of a rebate come from, I bet some psychologist made it up or at least one was consulted.
I think both solar and geothermal are good. Just that the gains for the outlay don't seem as good with Solar. I might be wrong, but geothermal seems to have better returns than solar.
How about these outdoor wood boilers, do they use electricity and how much?
Not as far as I know. They do heat water also...but it still requires a lot of wood to keep them going...or pellets...wood is pretty messy also, and some folks don't care for it because of that. I am not using it now, but have used it in the past and it is not without fault. I do want it for a 2nd resource, as it can be renewed easily by cutting firewood.:-)
I am under the impression it will require more electricity via circulator pumps, smaller in comparison to the geo pump requirements though?
That is only for water, AFAIK, but that does require additional. Geothermal requires it also, somewhere to keep the loop going. In my case I want to pump it from the lake up to the house. I think an open loop into the lake would be ideal. The lake is pretty large, so the temp of the water shouldn't vary much at all. It will be cooler always in the summer, and hotter in the winter, because of that.
I have heard the batteries are expensive to replace with solar, and that they need replacement. In theory, geo doesn't require that maintenance...maybe Quinton can comment on that?