The Metlund D'mand S-02T Hot Water Pump vs. the Chilipepper CP6000 Pump

Hot Water Demand Systemsangle stops under the sink to "T" into the piping. 
The S-02T Series D’MAND® System is aThis is because the pump does not develop
"Demand" type hot water delivery system,enough pressure to overcome the pressure drop
meaning that the hot water does not get pumpedthat would occur in the small openings in fixture
to your fixtures unless you "demand" it bysupply hoses.
pushing a button or activating the system in someThe prices listed are from Metlund's website.
other way.Metlund D’mand S-02T-PF Kit retails for
The pump is located at a fixture such as underabout $797.50, and comes with flanges, two
the bathroom sink or under the kitchen sink.copper “T” compression fittings, and two
Typically you would want to locate it at the endstainless steel flex-lines for easy installation.
of a main hot water run that supplies otherMetlund D’mand S-02T-PF-R Kit ($852.55)
fixtures as well so you can use one pump forSame as S-02T-PF plus one remote control
several fixtures. It depends of course, on howpackage.
your home was plumbed. 
When the pump senses a sudden increase inThe Chilipepper Model CP6000 Demand Hot Water
temperature it knows the hot water is arrivingPump
and it shuts off so the hot water does not getThe CP6000 is also a demand system very
into the cold water line. The Metlund pumps turnsimilar to the Metlund D'mand System.  The
off when they sense a 3° increase inmajor differences include a much more powerful
temperature. Now you have hot water instantlymotor...1/3 horsepower, a much higher maximum
at the fixture and anywhere else plumbed off thepump pressure...50 PSI, and an adjustable shut off
main line.sensing temperature. The range is 3° to 12°,
According to Metlund, the S-02T models arewhich allows you to fine tune the "hotness" of the
designed for use in large homes or commercialdelivered water when the pump shuts off.
buildings where the distance from the waterThe high rpm powerful motor makes enough
heater to the farthest fixture is greater than 100noise that you can hear it run. Since you can hear
feet. They are compatible with tankless waterit run you can hear it shut off and you then know
heaters.it's time to turn on the hot water.
The pump has a maximum pressure of about 13Connection to the plumbing is done with the same
PSI and a 1/8 horsepower motor.type of supply hoses as most of today's
The S-02T model weighs 16 lbs. Dimensions arehomes.  The water supply to the house does not
16" wide, 9" deep, and 6½" tall. The motor usedneed to be turned off.  You just shut off the
for the S-02T is a Taco Model 0011 Circulatorangle stops under the sink, connect up the hoses,
pump.and turn the valves back on.
Installation of the S-02T requires full 1/2" plumbingThe CP6000 weighs 5 pounds, Dimensions are 6"
connections, normally requiring the removal of thewide, 8-1/4" deep, and 3-7/8" tall..