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Posted by Existential Angst on October 22, 2009, 1:03 am
All --
Which is more efficient?
Clearly (I think), baseboard water systems are the much more expensive
initial install.
How much more expensive?
More or less efficient than air? Diff for the hot/chilled water?
I think a water system would be much more efficient, as the zoning is so
much more controllable, effective.
And, isn't the heat transfer to water much more efficient than the heat
transfer to air?
Also, the mass of the baseboard system would tend to even the heat
distribution.
Also, one has a greater choice of fuels/machinery with hot/chilled water.
Lastly, the water circulating pumps draw very little current, while blower
motors/boosters can draw boucou amps, esp. on startup. Water is also much
quieter.
Water systems might not be the best choice in very cold climates, unless
antifreeze is used -- which might not be legal in some places.
OTOH, in places that use solar heating and water for energy storage, water
systems could be a no-brainer, at least for the heating part.
Opinions?
--
EA
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Posted by Steve on October 22, 2009, 7:55 am
> All --
> Which is more efficient?
> Clearly (I think), baseboard water systems are the much more expensive
> initial install.
> How much more expensive?
> More or less efficient than air? Diff for the hot/chilled water?
> I think a water system would be much more efficient, as the zoning is so
> much more controllable, effective.
> And, isn't the heat transfer to water much more efficient than the heat
> transfer to air?
> Also, the mass of the baseboard system would tend to even the heat
> distribution.
> Also, one has a greater choice of fuels/machinery with hot/chilled water.
> Lastly, the water circulating pumps draw very little current, while blower
> motors/boosters can draw boucou amps, esp. on startup. Water is also much
> quieter.
> Water systems might not be the best choice in very cold climates, unless
> antifreeze is used -- which might not be legal in some places.
> OTOH, in places that use solar heating and water for energy storage, water
> systems could be a no-brainer, at least for the heating part.
> Opinions?
Another idiot trying to either reinvent the wheel, or get us to do his
homework for him.
Chilled water?? its gonna have to be below dew point for humidity
control.....what are you going to do with the condensate in the baseboards??
You don't have a choice... you still going to have either DX or water coils
and a blower for cooling.
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Posted by The King on October 23, 2009, 5:29 pm
On Thu, 22 Oct 2009 01:03:57 -0400, "Existential Angst"
>All --
>Which is more efficient?
>Clearly (I think), baseboard water systems are the much more expensive
>initial install.
>How much more expensive?
>More or less efficient than air? Diff for the hot/chilled water?
>I think a water system would be much more efficient, as the zoning is so
>much more controllable, effective.
>And, isn't the heat transfer to water much more efficient than the heat
>transfer to air?
>Also, the mass of the baseboard system would tend to even the heat
>distribution.
>Also, one has a greater choice of fuels/machinery with hot/chilled water.
>Lastly, the water circulating pumps draw very little current, while blower
>motors/boosters can draw boucou amps, esp. on startup. Water is also much
>quieter.
>Water systems might not be the best choice in very cold climates, unless
>antifreeze is used -- which might not be legal in some places.
>OTOH, in places that use solar heating and water for energy storage, water
>systems could be a no-brainer, at least for the heating part.
>Opinions?
Google radiant cooling/panels.
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> Which is more efficient?
> Clearly (I think), baseboard water systems are the much more expensive
> initial install.
> How much more expensive?
> More or less efficient than air? Diff for the hot/chilled water?
> I think a water system would be much more efficient, as the zoning is so
> much more controllable, effective.
> And, isn't the heat transfer to water much more efficient than the heat
> transfer to air?
> Also, the mass of the baseboard system would tend to even the heat
> distribution.
> Also, one has a greater choice of fuels/machinery with hot/chilled water.
> Lastly, the water circulating pumps draw very little current, while blower
> motors/boosters can draw boucou amps, esp. on startup. Water is also much
> quieter.
> Water systems might not be the best choice in very cold climates, unless
> antifreeze is used -- which might not be legal in some places.
> OTOH, in places that use solar heating and water for energy storage, water
> systems could be a no-brainer, at least for the heating part.
> Opinions?