quiet pumps would be nice
I used to install NOVAN soalr panels and other brands in Colorado and I wouldent wish
what you are doing on a dog....Novan was a great system, but they are now bankrupt and gone , probably like the company you are presently looking at will be some day too.
If you are completely unaware of the amount of water pressure you have and
wether to gear it down for the boiler and solar system, and what needs pumps and what does not, that is not a good sign of things to come...
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I have looked at the design , hope-fully you are not installing "drain down" water type type solar panels... they are nothing but problems
depending on where you live.... they lime up over time...and
maybe in arizona they might work fine
IN arizona things dont FREEZE UP as much...
I did not look in depth, but it appears that the solar panels use water ..??
It looks like the heat excahnger is mixing with potable water, so I doubt they are useing Glycol or anything else that might poison you....
you might want to check into this before getting in too deep...
keeping things simple is the best path to take ..in my opinion
water type solar panels are nothing but trouble.....they freeze up with any type of malfunction, (thats real bad) they waste water cause they have to drain down at night, ect, ect...
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Also keep in mind that your heat excahanger tank is good for maybe 10 years if you are real lucky.
I have torn out dozens of these old solar tanks over the years....Never re-installing the same thing again. They just leave the panels dead on the roof and install a hot water heater cause they usually never worked right in the first place andthey dont want to spend any more money on it anymore.....
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Honestly, installing a solar system enough greif for anyone that knows basically what they are doing...
I have seen solar system disasters that were designed by people that actually knew what they were doing...all the big plans and designs come crashing down after only a year or two.......that aint good.
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I respectufully advise that if this is your home, it might be prudent to think this over pretty long and hard...
and at the very least get some estimates and get advice from people who do this every day...
Because once you have got this radiant system buried in concrete, and everything bought and installed, panels on the roof,ect.....
you really cant go back... its a done deal....
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A passive solar system is far less trouble....and works pretty good if you got a south faceing area where you could just install a fan and pump air through the panesl to force warm air down into the house...
I would rather install a wood burning boiler and use it as the back up to a hydronic system than get involved in what you are about to do...
please check into wether the panels use water or glycol....thats very important...
keep it simple
thats just my opinion...