Your question seems to be "Is there any reason to buy a Listed HIGH
EFFICIENCY Vs. a Listed STD EFFICIENCY fire pump?"
The short answer is No. But it may also be the wrong answer. Large electric
motors see an improvement in efficiency of about 100% every 10 years, so if
your not buying the current level of efficiency, your pump may be costing
the owner much more over its lifetime, as the cost of elect. increases. Also
your (50 Hrs per year are 1250 over a 25 year life.) If your hypothetical
farmer irrigated 1250 hr year and only planned to run one year would he pay
the 10 -15% premium for HE vs STD EFF? Knowing that the cost of elect would
be 40 to 60% more for the STD EFF. What about energy conservation?
Does this fire pump have a back up generator? If so that will have to be
larger for the STD EFF vs the HE. There is always more to consider than just
the initial cost.
Thom McMahon
Firetech, Inc.
2560 Copper Ridge Dr
Steamboat Springs, CO 80488-2136
Tel: 970-879-7952
Fax: 970-879-7926
----- Original Message -----
From: <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Saturday, September 08, 2007 10:56 AM
Subject: Re: Fire Pump Efficiency Important!?
NFPA Standards require the use of LISTED fire protection equipment.
Mechanics aside, if it isn't listed, it doesn't meet NFPA Standards.
Forest Wilson
Cherokee Fire
In a message dated 9/8/2007 11:10:23 A.M. Eastern Daylight Time,
[EMAIL PROTECTED] writes:
On 9/8/07, Reza Esmaeili <[EMAIL PROTECTED]> wrote:
Hi All,
How much a fire pump efficiency is important?
When want to buy an agriculture pump which should work at least 12
hours
a day, then efficiency is very important to decrease energy cost. But a
fire
pump which may work totally 50 hours/Year and energy saving is not a
matter
of importance for a fire pump, why shoild I buy high efficiency fire
pumps.
I think even a low efficiency(Ex. 60%) fire pump which meets NFPA
standards (Deliver not less than 65 percent of rated head at 150 percent
of rated
capacity) can be a good choice and no need to spend too much money to buy
high
efficiency (Ex. 90%) fire pump.
I believe that even a low efficiency fire pump is as reliable as a
high
efficiency fire pump for fire protection.
What do you think about it?
Thanks,
Reza
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