[Greenbuilding] STSS - was "heat pump advice"

[Speireag Alden]

Sgrìobh Nick Pine:

>He's full of practical solar house heating advice, like "never make 
>hot water downhill, because it cavitates in the pipes and sounds 
>like rats in the walls."

     Hi, Nick.  I'm having trouble parsing that.  Should it be "never 
make hot water RUN downhill" or "never make hot water downhill OF 
YOUR POINT OF USE" or what?

-Speireag.

-- 
The chill's in the air
Even so, we are gaining
on Old Man Winter.

-Speireag.