On Monday, June 30, 2014 6:42:57 AM UTC-7, Robert Macy wrote:
Roger that! It had to come.
All sorts of idiot warnings required by lawyers. (Grumble: Trend is part
of nobody taking responsibility for their own actions???)
Annual gas heater inspection: Gas co. man said that they're told to keep t
emp. "medium" so people won't burn themselves. But also said (your opinion
??) it's more efficient at higher temp. I had him set it higher.
In that case it would be cheaper (cost of hot water wise) to just get a
larger heater and not heat it so hot, as a larger water heater is more
effecient than a smaller water heater (due to there being less cooling
surface area), and heat loss from a water heater is not a linear
function as the temperature is increased.
It depends on your location, as well as how far below the surface you
can place the heater to take advantage of the geothermal gradient (~1F
per 70 feet).
Assuming your incoming water is 55F, placing the heater one mile below
the surface would keep the water at a temperature of about 130F, not
accounting for losses.
You might have to run the tap for a little bit, though.
What kind of wimpy pump are you using? I've got one of these collecting
dust in the shed. 'Bout time I put it to work.
It's not the pump. I went with 5gpm since I thought I remembered that
was what the government allowed in a faucet. Looking around a bit on
line it seems it's actually 2.5gpm. So you'd have to run the tap for 24
If I'm going to bury a water heater 1 mile down into the earth and use the
world's largest pump to get the water to the surface, I seriously doubt I'm
going to worry about the government regs related to faucet flow rates.
I've got one of these out in the garage just waiting to be hooked up to
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