Hot Water Circulating Systems - Cold Water
Return for Instant Hot Water
For water heaters that don't have hot water circulating systems there are alternatives to the expensive and difficult process of
adding a return loop, hot water circulating pump, and the associated equipment required for a traditional hot water re-circulating system.
Low cost retro-fit instant hot water is inexpensive and easy to install
The cost of such a retrofit could easily run into the thousands of dollars.
Tearing out sheet rock and running pipe under crawl spaces and in attics is
expensive.
The alternative to such a system is what's known as a cold water return type
system. One such system is the Chilipepper appliance.
Another problem with the traditional water heaters hot water circulating system is that unless it is planned
before the house is built, the piping system is usually branched and not series
plumbed, the proper method for circulating systems.
A traditional hot water circulating system is a big energy waster. The continuously running pump uses
quite a bit of energy over time, but the big energy waster is the staggering amount of heat lost from the hot water piping and return line.
Because the re-circulating pump normally only runs for a few seconds each time heated water is desired, the pumping energy is
very small, typically less than a couple of dollars a year. And since it doesn't constantly keep hot water in the lines it doesn't use any more
energy than a non-circulating system.
The add on type systems use the cold line as the return line for the circulation loop. In these
systems the pump is located under the fixture where fast hot water is
desired, and connects from the hot pipe to the cold pipe.
When used with a branched system sometimes one pump can serve several fixtures
and sometimes more than one pump would be required to serve multiple fixtures.
Demand type circulating system
The demand type of cold return, circulating system incorporates a button or other device to turn
on the pump when hot water is desired at a fixture.
The pump in some systems (such as the Chilipepper) is strong enough to pump at a much faster rate than it normally
flows from the tap, getting the hot water to the fixtures more rapidly than running the faucet.
As with traditional circulating systems, nothing is wastefully run down the drain.
Temperature control type system
Some cold water return type circulating systems use a
temperature control to turn the pump on and off. These systems use temperature
set points that are low so that the cold line does not end up full of hot water,
just luke warm.
Both the demand type circulating systems and the temperature control type systems can be used with timers.
Instant hot water systems such as the Chilipepper and the Metund d'mand system use the
cold water line as a return and save you time, water, energy, and money!Chilipepper
Sales 10 Greg St., # 110 Sparks Nevada, 89431
PH (775)-359-1223
