Re: Inflatable HVAC duct valves

["Jeff Volp" <JeffVolp@xxxxxxx>]

I have seen a few of the bladder dampers listed on eBay while searching for
the motorized vane type.  They were pretty cheap.

It is not that hard to add round motorized vane type dampers into galvanized
ductwork.  As I recall, 8 inch variable displacement vane dampers were
around $100 at the local HVAC distributor.  Simple 2-position dampers
sometimes show up on eBay at pretty good prices.

Jeff

"E. Lee Dickinson" <lee@xxxxxxxxxxxxxxxxxxxxx> wrote in message
news:dnailq$hps$1@xxxxxxxxxxxxxxxxxxxx
> What I really need is just the bladders and the pump. I'd like to have
> Homeseer control the action through my Ocelot/SECU16.
>
> Is the inflatable kind any more affordable than the power dampers? Trying
to
> retrofit a power damper into my ducts is going to be terribly difficult.
> Dropping a bladder in a duct sure sounds nice and easy.
>
> Any experiences? Any online sources?
>
>