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The Hot Water Lobster
Instant Hot Water Valve
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"Always in hot water!"
SAVE WATER! At ONLY $179.95, the eco friendly Hot Water Lobster Instant Hot Water Valve provides
faster hot water which
saves water, saves energy and saves time.  How long does it take for hot water
to get to your faucet or shower?  A lot of precious water is wasted down the drain while waiting for hot
water.  Even worse is the cost to heat the cold replacement water, which enters your house at the cold
ground temperature.

HOW IT WORKS! When the water in your hot water pipe and the Hot Water Lobster control valve cools
below the user adjustable temperature (77-140 F. degrees), the thermal materials within the
Water Lobster
control valve contract and silently open the valve.  Thermal convection within your hot
water tank (differential of pressure between the top of the tank and the bottom of the tank) naturally
circulates the cooled water through your existing cold water pipes and back to    the hot water tank for
reheating.  Your existing hot water tank now uses less energy reheating the warm water instead of
cold ground temperature water.  When fresh hot water enters your hot water pipe and reaches the
Water Lobster
control valve, the valve automatically closes.  This maintains hot water at the control
valve without wasting water or wasting energy.  Turn on your faucet or shower; and you get instant hot
water instead of wasting it down the drain!  Installing the
Hot Water Lobster instant hot water control
valve at the fixture furthest from your hot water tank (as shown in the installation diagram) will provide
faster hot water to all of the fixtures in your house.

NO ELECTRICITY NECESSARY! The Hot Water Lobster is all mechanical and designed to provide an
electricity free solution to maintain hot water at the tap.  This makes installation a snap (less than 10
minutes).  Other hot water solutions require the use of electricity and pumps that make installation
difficult and the pumps are often noisy and wear out in 2-4 years.

MORE HOT WATER! Adds as much as 10% more capacity to your current hot water system (by
keeping the water in your hot water pipes hot!).

KEEP PIPES FROM FREEZING!     The Hot Water Lobster instant hot water valve automatically allows
water in your pipes to circulate when the control valve cools below the set temperature (even when
your electricity goes out).

REDUCES CONDENSATION! The Hot Water Lobster instant hot water valve reduces condensation on
pipes and toilets basins.

MAINTENANCE FREE! The Hot Water Lobster has a solid brass valve body with an adjustable thermal
controlled stainless steel valve stem enclosed in a mounting box.

EASY INSTALLATION! The Hot Water Lobster comes complete with the mounting box, 4 sets  of 12"
flexible water lines and standard brass fitting.  All pre-assembled and tested for an easy 10-minute

STATISTICS! *A typical family wastes approximately 12,000-17,000 gallons of water annually waiting
for warm water to reach the tap.                 
*as determined by GAMA (Gas Appliance Manufactures Association)

Note: Circulation of water by thermal convection must not be restricted (no check-valves) between the
water heater tank  and the Hot Water Lobster Instant Hot Water Valve.
Hot Water Lobster Instant Hot Water Valve PDF Installation Instructions
Hot Water Lobster Instant Hot Water Valve Mail Order Form
Hot Water Lobster Instant Hot Water Valve Frequently Asked Questions
Last Updated
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                    How Can We Get Faster Hot Water?
                                    Instant Hot Water

Gone are the days of running our faucets at “full blast”. Now flowing water is costing us
serious money.  Water has become much more valuable, and all kinds of devices are
being implemented to conserve water and conserve energy. These days all fixtures
have flow restrictors, showers reduced to 2 gallons per minute and the bathroom sinks
to about ¾ gallon per minute.

Years ago it was common in expensive homes to find hot water circulating systems that
provided the home owner with instant hot water at any fixture in the house. The
plumber would run the hot water piping in a loop from the water heater outlet to a
fixture and from that fixture to the next and so on until he reached the last fixture. From
the last fixture he would run a pipe back to the inlet of the water heater where a pump
and check valve were located.

The pipe from the last fixture back to the water heater is known as a dedicated return
line. A check valve located between the return line and the water heater inlet kept
water from being drawn backwards through the return line when a fixture was in use. A
pump located at the water heater would circulate the hot water through the piping,
allowing hot water to always be ready at all the faucets. That way when ever a hot
water tap was turned on there would be instant hot water. An additional benefit of
instant hot water is the conservation of water. You don’t run thousands of gallons per
year of water down the drain waiting for hot water to arrive.

Instant water is wonderful, but the cost of installing a dedicated return line is expensive.
This type of dedicated return line also does not work well with tankless water heaters,
which are becoming very popular. The problem is that tankless water heaters are
turned on when water flows through them. Since the circulating system continuously
circulates the hot water, the water heater would be on all of the time. That just wouldn’t
work out very well. It’s unfortunate since tankless water heaters take a little longer than
storage heaters to deliver your hot water.

Considering the high cost of plumbing a dedicated return line and the increasing costs
of both energy and water these days, there are now recirculating systems that you can
install yourself (without a dedicated return line-these systems use the cold water piping
as the return line). To save hot water and save energy these hot water recirculating
systems can have three types of controls: “Timer” controlled (which only provide hot
water at certain times of the day and require electrical connections to operate the
pump), “Demand” controlled (which require the user to push a button near the pump
before hot water will be provided and require electrical connections to operate the
pump) and “Temperature” controlled (which allow hot water to circulate only when the
water temperature drops below the adjustable temperature setting, is all mechanical
and requires no electrical connections)
Use of these systems can save a typical family of four up to about 17,000 gallons of
water per year, and because the warm water is recirculating to your water heater
(instead of cold ground temperature water), you also save heating energy.

By installing a recirculating hot water system you will not only have the convenience of
faster hot water, but you will be saving a whole lot of water and energy-reducing your
carbon footprint.

Reasons to install a Hot Water Lobster Instant Hot Water Valve:

  •   Saves thousands of gallons of water by not running it down the drain!
  •   Get your hot water faster from your current water heater!
  •   Save time, energy and money while living a more “green” lifestyle.
  •   Eco-friendly!
  •   Aids in preventing pipe freeze.
  •   Only $179.99! (Plus Shipping & Handling)
  •   10-Year WARRANTY
  •   Brass Valve with Stainless Steel Stem.
  •   Easy installation! (no pipe cutting, soldering or electrical connections required).
  •   Shipped completely assembled with flexible water lines.
  •   Works with or without a dedicated hot water return line.
  •   When you turn on your faucet you've got instant hot water!

Eliminating that wasted water saves you thousands of gallons of water every year. A
typical family of 4 can save over 17,000 gallons of water per year! By not running that
water down the drain you are reducing the amount of sewage that needs to be treated
as well!