Super Fire Engine Electric RTR RC Remote Control Truck With Working Water Cannon

• Full Function Radio Control
• Detailed Paint Job And Decals
• Working Headlights and Siren Lights
• Working Water Cannon
• Real Sound Effects

Product Description
Introducing the Super Fire Engine Electric RC Truck With Working Water Cannon. Live out your fantasy of being a firemen by driving around this amazing RC. What really makes the Super Fire Engine unique is the working wat… More >>

Super Fire Engine Electric RTR RC Remote Control Truck With Working Water Cannon

Tankless Water Heater? Turn it Green With Faster Hot Water!

If you have a tankless water heater then you probably already know that it takes longer to get hot water with a tankless water heater than with an old fashioned storage tank type water heater.  While you wait for the hot water to arrive, you are running water down the drain.  What a shame to have to waste water to save energy.  But there is something you can do to change the situation.

 

There are hot water pumps designed specifically to get you your hot water faster, and they eliminate running water down the drain while you are waiting.  These pumps or pumping systems are called “Demand “hot water systems.  There are several manufactures of such systems.

 

Let’s take a minute and examine the reasons for the lengthy delay in obtaining hot water at the fixtures.  Back in the old days, when there were no low flow fixtures, you could get your hot water pretty fast, but you still used just as much water.  When you have a faucet that spews out 6 gallons a minute your wait is pretty small.  For example, a ½” diameter pipe 63 feet long holds a gallon of water.  So if your fixture allows water to flow at 5 gallons per minute, it would take only 12 seconds for the water to flow through the 63 feet of pipe. If you have a low flow faucet at the sink which only allows a maximum of 1 gallon per minute, it will take 60 seconds for the water to reach the fixture. Quite a difference.

 

But wait, there is more.  Since the pipe material is cold, (unless you recently used hot water), it will absorb heat from the water as it flows to the sink until the pipe warms up to the temperature of the water. The colder the pipe the longer it takes to get hot water to the sink.

 

Tankless water heaters don’t have a tank full of hot water waiting to be piped to the fixture at a moments notice…first you have to heat the water.  A tankless water heater is like a coil of pipe with a burner under it.  In order for the water to get hot it must stay in the flames for a certain period of time.  When you turn on your hot water the water in the middle of that coiled up pipe won’t be in the flames long enough to get hot.  The water needs to travel through the entire coil pipe to reach full temperature.  So add the time it takes for the water to travel through the coiled up pipe in the tankless water heater. 

 

So what do we do about it?  We can pump the water in a loop from the outlet of the heater through the hot water piping and cold water piping back to the water heater inlet.  If we turn the pump off just before the hot water reaches the fixture we won’t get hot water into the cold water piping and our hot water arrives much more quickly.  And as an added bonus no water gets run down the drain at all.  It turns your hot water system green!

 

These demand hot water systems put a small pump at the furthest fixture from your water heater and connect them between the hot and cold water lines.  There is a temperature sensing element in the pump that shuts the pump off when an increase in temperature is detected.  This prevents hot water from getting in the cold water line.  You do need a power outlet under the sink to plug the pump into.

 

Now when you want hot water you just push a button, and the pump takes over delivering hot water to the fixture fast without wastefully running water down the drain. Most manufacturers also have remote control accessories to activate the pump from other sinks that may benefit from the same pump, and even to activate it by detecting motion etc.

 

There are a number of systems that will work with tankless water heaters, but not all do.  Standard circulating systems will not work, it must be a “demand” system, otherwise it will void the warranty.  Even some demand systems won’t work unless they have a pump powerful enough to activate the tankless water heater.  Tankless heaters need a minimum flow rate to turn on and stay on.

 

Hot water demand systems range in price from about $180.00 to over $500.00.  Studies have shown that a typical family of four can save over 10,000 gallons of water per year. Needless to say, by not using all of that extra water you help reduce the energy required for pumping and treating the water before it gets to your home, and after it’s send down the sewer.  Reduced energy usage means reduced amounts of green house gases being released into the atmosphere. 

 

If you have a tankless water heater think about helping preserve our planet and reducing your carbon footprint with a demand type hot water delivery system.

Product Review and comparison of the Metlund D’mand S-70T Hot Water Pump and the Chilipepper CP6000 Hot Water Pump

 

 

Comparing Green Plumbing Systems: <a onClick=”javascript:pageTracker._trackPageview(’/outgoing/article_exit_link’);” href=”http://www.chilipepperapp.com/Artcls27-Metlund-Chlppr.htm”>Instant Hot Water Systems</a>

 

For more information about all kinds of water heaters: <a onClick=”javascript:pageTracker._trackPageview(’/outgoing/article_exit_link’);” href=”http://www.chilipepperapp.com/whwp.htm”>Water Heater Problems</a> Tankless and tank type water heater information.

Demand type hot water delivery systems are designed to speed up the delivery of hot water to your fixtures without running any water down the drain.  These systems only operate when you “demand” your hot water by activating the pump.  Usually that means pushing a button.

The pump is normally located under the sink from where the hot water is demanded. Depending on your plumbing layout one pump can service more than one and often all of the fixtures in a home.

Once activated the pump sends hot water from the water heater to the fixture, hopefully more quickly than if you just ran the faucet full-blast. The cooled off hot water in the hot water pipes is sent back to the water heater inlet via the cold water pipes.

When the pump senses an increase in temperature it shuts off. That prevents hot water from filling the cold water pipes. When the pump shuts off you have nearly instant hot water at the faucet, and no water was run down the drain.

The Metlund S-70T Hot Water Pump

The Metlund S-70T actually uses a Taco Inc, Model 008 Cartridge Circulator pump.

According to the Metlund web site the S-70T models are designed for homes under 3500 square feet and adequate for runs of up to 100 feet.  The pump curves can be found at the Taco Pump web site, and the curve marked “008″ is the curve for this pump.

Metlund lists the “performance” as “Gallons/Minute = 14″ and “Total Head = 16 ft.” As can be seen from the pump graph curve #008, the 16 Ft. (7PSI) is the amount of back pressure needed to stop the pump from pumping any water.

The 14 gallons per minute is how much water the pump would pump if there was no backpressure at all. The actual flow that the pump produces depends on the backpressure produced by the friction of the water against the pipe wall as it flows.

For example, a flow of 3-1/2 gallons per minute through 100 feet of 1/2″ type L copper tubing requires a pressure of 4.3 PSI (10 Ft. Head). 100 feet of pipe would service a fixture about 40 feet from the water heater. Any elbows or valves in the line add to the back pressure. Tankless water heaters require around 8 Ft. of Head (3-1/2 PSI) for a flow of 3-1/2 gallons per minute. Adding the two pressure drops together yields almost 8 PSI (18 Ft. Head).

Since that is above the cut-off pressure of the S-70T, it can never pump that much flow. So take what the Metlund web site says with a grain of salt.

If you have a tankless water heater that supplies a fixture 50 feet away, it’s unlikely that the Metlund model S-05T would even achieve a flow rate of 2 gallons per minute when used with a tankless water heater.

The pump must be plumbed to the water main side of the shut-off valves under the sink due to the low head capabilities of the pump, and the high head loss through the shut-off valves.

The Metlund pump shuts off when it senses an increase in temperature of 3°.

The prices listed are from Metlund’s website.

S-70T-PF-R Kit ($518.65)
Same as S-70T-PF plus one remote control package.

S-70T-PF-V-102 ($542.50)
Same as S-70T-PF plus one hard-wired motion sensor.

The Chilipepper Model CP6000 Demand Hot Water Pump

The Chilipepper was designed to be hooked up with hoses, and thus needed a much more powerful motor to overcome the head loss produced by the very small holes through typical faucet connections. The CP6000 has a maximum Head of 115 Ft (50 PSI).

Connection to the plumbing is done with the same type of supply hoses as most of today’s homes.  The water supply to the house does not need to be turned off.  You just shut off the angle stops under the sink, connect up the hoses, and turn the valves back on.

The powerful Chilipepper pump works great with any tankless water heater on the market regardless of brand or model.

The high rpm 1/3 horsepower motor does make noise, and you can hear it.  It’s very handy to be able to hear the pump shut off, because that way you know when to turn on the faucet.

The CP6000 retails for $179.99 and comes with a button, a six foot control wire, and two brass T fittings with adaptors for 1/2″ or 3/8″ hoses.

The CP6000 can be purchased bundled with a remote control receiver and transmitter for $215.99.

Hyundai HYU-P08CR 8,000 BTU Cooling Only Portable Air Conditioner – Electronic control with remote & without water tank

• 8,000 BTU Portable Air Conditioner
• Adjustable Thermostat, 24 hour timer, Self Evaporation
• Cools approx. 225 sq. ft.
• 3 Speed
• Electronic Control

Product Description
The Hyundai 8,000 BTU Portable Room Air Conditioner will cool a room up to 225 sq. ft. It easily moves on casters from room to room. The unit can be controlled remotely so you can adjust the temperature without having … More >>

Hyundai HYU-P08CR 8,000 BTU Cooling Only Portable Air Conditioner – Electronic control with remote & without water tank