2/4/2003 - The Metlund D'MAND System - It is Invention and Evolution
Back again in the late 1980's my partner Dennis Metzger and myself (William Lund), were marketing a h2o saving method involving water heaters. We attended tons of trade reveals hoping to industry our energy conserving system. The system, a Sizzling Water Recovery System could preserve home owners a big percentage of their drinking water heating invoice.
We located that individuals had been just not interested in saving power at the time. The most often question asked of us was does it get my scorching h2o faster? We found that most of the individuals we talked to wanted quicker hot h2o.
Later Dennis and I ended up driving to a PUC meeting in San Francisco from our company in Stockton, California. It was on that generate that I had my epiphany...there was a way to get people their sizzling h2o faster! Why not pump it to them at higher pace and shut the pump off when the scorching water arrived at the fixture? That was the moment of conception for the Metlund D'MAND system!
As quickly as we obtained back Dennis and I started building the thought. At 1st we believed a return line would be necessary as with scorching water circulating systems, but we quickly realized that we could use the chilly h2o line as the return as prolonged as we shut the pump off speedily ample.
We further discovered that because it normally requires time for warmth to transfer from the water to the temperature sensing gadget and it takes time for the system to reply, sensing a ultimate temperature often ended up with hot water in the cold h2o pipe. But by shutting the pump off when a temperature boost was detected, we could shut the pump off without having acquiring sizzling h2o in the cold pipes, and the scorching drinking water would be 2 or 3 seconds away.
We ended up making use of a Taco Inc, sizzling h2o circulating pump, a motorized ball valve in collection with the pump, and an electronic circuit to control the pump and ball valve. A temperature sensor also was strapped to the very hot drinking water pipe for sensing the temperature. The Metlund need technique nevertheless makes use of a Taco pump and an electrical valve to this day.
With this arrangement we could pump the drinking water swiftly to the fixture, and no h2o would be run down the drain. It was a great products, if a bit expensive. Circulating pumps and motorized ball valves are not inexpensive.
My spouse and I had combined our previous names to type a title for our firm, Metlund Enterprises. Our organization was a very small small two gentleman operation. Needless to say advertising and marketing a new product with no funds is difficult. We ended up licensing it to ACT along with our name Metlund. It's now recognized as ACT Metlund and Dennis and I are no more time affiliated with the company.
It was one of these circumstances exactly where the two naïve inventors meet the new company's attorneys and the subsequent issue we knew we had been out on our behinds with absolutely nothing to show for it...but that is one more tale.
A number of decades afterwards we determined to get an additional search at the issue addressed by the unique Metlund D'mand technique. Metlund hadn't enhanced the technique in many years, and nevertheless hasn't.
Following taking a fresh search at the dilemma we came up with some quite very good new ideas, and we made the decision we would get in touch with our new pump the Chilipepper!
As a substitute of making use of a scorching drinking water circulating pump which has extremely small electricity, we determined to create our very own pump from scratch, and design and style it specifically for the software. We utilised present day injection molding technology and used a much far more potent motor.
The outcome was a dramatically decreased retail price tag, size, and excess weight and a significant enhancement in functionality. Considering that we had a a lot much more strong pump we could hook the pump up with hoses rather of getting to use total ½ piping connections as with the authentic system. This makes it far easier to install beneath a sink.
We sense we are carrying out our portion in bringing drinking water conservation to the masses, even however most people who purchase hot water need programs this sort of as the Chilipepper CP6000 or the Metlund D'MAND program are doing so for the convenience of more quickly hot water.
REFERENCES:
http://www.articlerockstars.com/Art/1450/50/Pumps-And-Our-Daily-Encounter-WIth-It.html
http://www.articlesenormous.com/Article/Pumps-And-Our-Daily-Encounter-WIth-It/67426
http://www.articlesharer.com/Art/15102/50/Pumps-And-Our-Daily-Encounter-WIth-It.html
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Filed under: energy conservation, green products, home improvement, invent, metlund, plumbing, water conservation
Filed under: energy conservation, green products, home improvement, invent, metlund, plumbing, water conservation
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