[Strawbale] Chinese-made evacuated tube collectors and boilers vs. hot w

[Chris Green]

activism98201 at verizon.net wrote:
> Tom Lane, one of the premier solar hot water heating experts, isn't real keen on evacuated tube collectors.
>
> According to Lane, shedding snow is issue.  That and leaves and other stuff tend to pack in between the tubes.
>   
Some of the systems available have tempered safety glass covers, so snow 
and detritus are not a problem  A solar collector installed at 50N ( 
i.e., in the Kootenays ) will probably be tilted enough for the snow to 
slide off.
If not, it wouldn't be too difficult to provide enough roof overhang to 
keep the snow off and, as a bonus, to act as a solar shelf to reflect 
light and boost the output of the collectors. Not much,  maybe by 10-15%.

Cheers,

Chris Green.