elkimmeg said:
...unfortunately my hot water is within the boiler tankless system For years I thought about solar but so far with college tuitions and now weddings I never can come up with. a spare 15k
I have a tankless off the boiler as well, it's marginally ok in the winter but when I hear the boiler in the summer for our tankless I get a moment of dread, then anger. Pretty soon electric hot water on a timer will be looking good.
I'm looking at an indirect heater with an extra coil for solar but the problem is I would probably only need a 40-45 gallon capacity indirect but the ones with a solar HX start at 80 gallons. But as far a solar hot water installation goes, I went to several homes on this years Green Buildings Open House and very few solar hot water systems were more than $7,000 -$8,000 or so. Many were $3,000-$4,000 (DIY installs). Also there is a federal tax credit ending this year which will likely be renewed which helps write it down even more.