Sunday, September 2, 2007

[papercreters] Radiant floor -was- Re: Papercrete: insulation & thermal mass

Mark Royce <rmroyce@...> wrote: "I've been a fan of radiant heat for
years."

But Mark, no forced convection is required for radiant heat. It
doesn't need a "fan"!

BA-DUMP BUMP!

It's pun-tastic! Thank You. Thank You. Please tip your waitress.
Oohhhh I hear the groans cascading down upon me. Hey! Who threw the
tomato? Tough crowd! Tough crowd! I'z tells ya. I gets no
respect! (My Rodney Dangerfield tribute, RIP.)


You've hit upon the single biggest drawback to all radiant heating
systems. They don't naturally transition to A/C. Pumping cooling
fluid through typical hydronic radiant heating systems will create
condensation problems leading to all kinds of other moisture
difficulties. Cooling a radiant floor in a humid climate is asking
for a floor pond. Fun for kids (and some of us child-like adults) to
splash in on a rainy day, but not fun to live in.


Some of the newer modern A/C units don't use ducts at all. These
systems cool fluid in a central unit and pipe it to various heat
exchangers around the house. Each small exchanger is equipped with
its own seperate thermostat and small fan. Each exchanger is equiped
with its own condensation collector. Its kinda like having a small,
very quiet, window air conditioner in each room, without needing to
put it in a window. The noisy compressor is located outside. These
need not be the eyesores that most people think of when they envision
typical window A/C units.

I know this. Installing ductwork is a major hassle for a do it
yourselfer that doesn't know all the tricks and have the right
tools. (the vast majority of us) I'd rather run pex pipe any day.
Sooooooo much simpler. My daughter helped me run pex when she was
10. (I still remember her hula hoop style tubing dance. "C'mon Dad
You Try." Oh the humanity! My hips and spine don't move like that!)

--- In papercreters@yahoogroups.com, Mark Royce <rmroyce@...> wrote:
>
> I've been a fan of radiant heat for years. The one
> thing that has always concerned me was, how do you
> deal with the A/C. This last two years we have the
> A/C on twice as much as the central heat.
> If you put the heat in the floor, do you still have to
> run duct work for A/C?
> Mark
>
>
>
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