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Old 07-19-2009, 11:42 PM   #11 (permalink)
stevey_frac
EcoModding Apprentice
 
Join Date: Jun 2008
Location: Cambridge, ON
Posts: 240

Jalilah - '07 Chevrolet Cobalt LT
90 day: 40.57 mpg (US)
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Quote:
Originally Posted by MissileStick View Post
I use .5 GPM aerators on the bathroom sink, 1.5 on the kitchen, and 1.5 in the shower. I never wash hands with warm water (the water in the pipe is room temperature, and it's the scrubbin' that gets you clean!) The dishwasher gets run maybe 4x/week, and we get in about 1.5 showers/day with no problems (mine is absurdly low water ). Even if I take a 15 minute shower after someone else, I don't have to adjust the temperature at the end.



Cool. I had never heard of this kind of water heater. Here's the EnergyStar page on them.

Do you have a reference for what you said about flames being a thermodynamic cycle? I don't see how that could be, since there's no work being done.



I've thought about it, but I worry about the over-temperature valve going off!



Those are so cool. If I had my druthers I would install one in a heartbeat.


That sounds like a great integrated system for hot water, stevey_frac. You might be interested in this low-cost, low-energy shower instructable.


My house has the water heat recovery unit, and a high efficiency condensing hot water heater.

I'm also considering putting in an air conditioner with a desuper-heater to both improve the efficiency of the A/C and to preheat the water that gets fed to the water heater.


Flames can't be accurately described as a thermodynamic cycle, and you caught me on that.

What i should have said instead is that at higher load, the burner is probably more efficient. You might be high enough flame temperatures anyways, I'm not sure. The more I think about that, the more i question that. With such a simple fuel as natural gas, i think you'll end up with complete combustion from any flame burned in an excess of oxygen...

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