[Greenbuilding] Passive Solar and HVR/ERV systems

[Ian Albinson]

On Feb 23, 2007, at 1:47 PM, Corwyn wrote:

> Well, not lose, so mush as insulate, but yes it will be less  
> effective.  The trick is to insulate your feet.

So some carpeted areas, possibly FLOR Modular Carpet Tile or rugs,  
aren't going to change the mass too much.
The concrete, if done well, could look amazing. And slippers are a  
must I guess!

> I wouldn't recommend a second tank over a tankless, unless your  
> only power source is electricity.  A solar savvy tankless will only  
> heat the water enough to bring it to desired temperature.   A tank  
> will keep water at that temperature even if you aren't using it,  
> and the sun is about to supply all the heat you need.  (Yes, that  
> can be mitigated some).

I have the option of fairly green electricity (hydro, cow power etc.)  
and liquid propane.
I like the idea of on-demand, propane powered probably, just because  
it seems so silly
to have a tank heating water constantly until you use it.

Would you have to know how an on-demand system would fit with a HRV  
or ERV setup?
I've been looking at the LifeBreath system, through another home  
construction I'm
involved with.

In my head the passive solar + on-demand + HRV makes perfect sense,
but there's always that worry.

Many thanks for all your help on this Corwyn!