Drain Water Heat Recovery,DWHR Power Pipe

“Drain Water Heat Recovery Power Pipe”– Help you to capture 58% heat from drain water.

Drain Water Heat Recovery device or named Grey Water Heat Recovery device,brief description with “DWHR ” is an energy pipe with which, can capture/recovery heat from hot drain water.With Drain Water Heat Recovery(DWHR) power pipe from Smartclima,you can have:

• Catch 58% heat from hot drain water.
• Sale price is only 15-20% ,compared with other brand DWHR pipes in market!
• Heat Recovery capacity is better than any other type DWHR in the market!
• • Creates no discernible pressure loss
  • Innovative design with double walls,let water absorb heat directly at max.
• Payback period is shortest,only 0.5 year to 1 year!
• No maintenance and long service life!
• A green product,Significantly reduces carbon omissions

Background to invent “Drain Water Heat Recovery Power Pipe”

In general home,the consumption of hot water takes main part of energy expenses,it pays residential energy costs up to 20%-30%. But,a neglected fact is that when you are washing,bathing,flushing with hot water…, you only use about 10% heat energy stored in how water,the balanced typically 90% heat flows down the grey water drain pipe.This 90% heat energy costs your much money. Just because of this huge waste,Smartclima invented DWHR system(Drain Water Heat Recovery)-a magic device that recovery and capture heat from the grey drain hot water that has been already used (for example, to shower, wash dishes, or wash clothing) to preheat the entering clean water or going to other water equipments. The Drain Water Heat Recovery therefore will help you to decrease water heating costs. If turn this energy saving into a reduction of gas emissions,it can reduce gas emissions up to one ton per year for every device. According to SaskEnergy,for a general home,9-10% on total electricity consumption cost can be saved per year. You can immediately find its quick benefits and rewards after you install Drain Water Heat Recovery power pipes,about after 40 seconds when you open hot water faucet, the entering water heats up more and more through the DWHR pipes, and thus an electrical water heater will take less electricity to heat the water in the tank up to a certain temperature.“I`m feeling well” an user said, “when I wash,bath,flush… I can obviously feel that the device is working and I`m saving money,I`m  reducing carbon omissions,I`m  making contribution to enviroment”

 “There exist hundreds ways to spend money to save consunption on energy, but DWHR from Smartclima is simple but with shortest payback time.”–Cara Smusiak, a commen home builder

How doest “Drain Water Heat Recovery Power Pipe” Works

The technology of Drain-water heat recovery energy pipe works by transmiting the heat power energy from grey drain warm water which flows from dishwasher, bathtubs,showers,sinks,washing machines, and then preheat the incoming cold water. The incoming cold water captures and absorbs wasted heat and then enter into water tank or faucet to mix with existed hot water. Drain-water heat recovery energy pipe therefore helps your water heater to increase the capacity of water heating and shorten heating time. This increased heat can let you decrease or lower your water heater`s heating temperature ,of course no affecting the heating capacity. After install the device,you can quickly find its immediate benefits and rewards from the installed DWHR pipes,and about after 40 seconds when you open hot water faucet, the incoming cold water heats up more and more through the DWHR pipes.For example,at the occasion of showers of public, health and sports facilities, military sanitary complexes, hotels, summer cottages, etc,the wasted heat is transferred from wastewater to cold water through the DWHR, The temperature of cold water rises from ca 9℃ to 24‐28℃ at the wastewater temperature of 37℃ and flow rate of 9 l/min. It corresponds to the energy saving of ca 9.5 kWh.You can find that there are so much energy saved.That`s why DWHR pipe is more and more popular recently.

Compatibility of “Drain Water Heat Recovery Power Pipe”

The Drain Water Heat Recovery from Smartclima can work with any type water heater in the market,it can works for:
Instantaneous water heater + DWHR;
Tankless water heater + DWHR;
Electric water heater + DWHR;
Natural gas water heater + DWHR;
Oil water heater + DWHR;
Solar water heater + DWHR;
Air Source water heater + DWHR;
Thermodynamic panel water heater + DWHR;
Biomass water heater+ DWHR;
… …

“Drain Water Heat Recovery Power Pipe”  is recommended to install in the following occasion:

Typically, about 15% to 25% of the heat energy costs for a commen home are due to water heating requirements. DWHR can be installed widely at bathing rooms,washing rooms,showers of public, health and sports facilities, military sanitary complexes, hotels, summer cottages, etc. It can capture and recovery up to 58% of heat energy.In your house or in bathroom,two or more people are showering often and regularly.To achieve significant savings ,the incoming water becomes ONLY happens when you are using hot water in your house or shower to generate enough heat.Your shower faucet shouldn`t be at lowest place in your house.As the device must be installed below the shower. Or faucet vertically.

Features of Smartclima Drain Water Heat Recovery Power Pipe

• Recovery up to 58% heat from wasted hot watwe,and thus reduce hot water energy consumption;
• Shortest payback period from 6month to 1 year;
• “0″ cost to work,No requirement on other additional power;
• No noise produced.Works sliently,no any noise produced;
• Significantly reduces carbon omissions.
• The heat exchanger is built-in, let more drain heat transfer into cold water directly ;
• Innovative design with double walls,let water absorb heat directly.
• Plastic shell prevent heat from transfering to out;
• Fully recyclable materials;
• Reliable, and very little maintenance needed
• Compatible widely.It can work with any type water heater;

What temperature can be improved with Smartclima`s “Drain Water Heat Recovery Power Pipe”? You can quickly find its immediate benefits and rewards after you install Drain Water Heat Recovery power pipes,about after 40 seconds when you open hot water faucet, the entering water heats up more and more through the DWHR power pipes.For example, showers of public, health and sports facilities, military sanitary complexes, hotels, summer cottages, etc. could be listed. Heat is transferred from wastewater to cold water through the DWHR, The temperature of cold water rises from ca 43 ℉ to 80 ℉  at the wastewater temperature of 99 ℉ and flow rate of 9 l/min.

Benefits :how much you can save with Smartclima`s “Drain Water Heat Recovery Power Pipe” ?

Drain Water Heat Recovery power pipe can catch waste water in the hot drain water and transfer this heat into the cold water and thus to preheat the cold water. The China National Research has tested Smartclima`s DWHR units and compared it with other types DWHR,the result shows that Smartclima DWHR unit have better performance,it can work efficiently to reduce the water heating costs in houses. It is also recognized with energy-saving star and are recommended to install at commen homes and most of buildings,it can significantly reduce water heating costs by up to 50%.Therefore,more and more house and buildings are being installed Drain Water Heat Recovery.

For example,a family who uses 4 pieces showers with 10-minute per shower daily,flowing 45°C temperature water with a low-efficiency showerhead. Visit the Centre for Energy Advancement through Technological Innovation to calculate your potential energy and dollar savings by DWHR device.
Electric water heater + DWHR
Annual cost savings: from $182 to $295

Natural gas water heater + DWHR
Annual cost savings: from $90 to $145

Oil water heater + DWHR
Annual cost savings: from $141 to $230

(Cost Savings depends on DWHR model and configuration)

What is payback time for “Drain Water Heat Recovery Power Pipe”  from Smartclima?
Payback period of Drain-water heat recovery device from Smartclima is very short.Compared with commen DWHR in the market(their payback period is between 2–6 years depend on the physical characteristics of the installation as well as hot water consumption),at the same conditioner,our DWHR payback period is only from 6 months to 1 year, of course,it mainly depends on how often you use hot water, the quantity of bath showers taken daily and the number of user in the home.

More Benefits and Expectations of Smartclima DWHR Power Pipe
There are many benefits to adopt a DWHR unit, including more comfort temperature, top convenience installation and usage, energy saving, Significantly reduces carbon omissions ,prolong service years of heat water, long working life with little or no maintenance.

Why Smartclima`s DWHR  has better performance than other brand DWHR?

Because Drain Water Heat Recovery device from Smartclima has its own unique features.There are two important points which let  Smartclima`s DWHR device has better performance .One is that the clean clod water can absorb heat from copper drain pipe directly,there is no space between hot drain water and clean cold water,the heat can be transfered to cold water directly;Another important characteristic is that Plastic shell prevent heat from escaping to air.Therefore,compared to other brand DWHR products in the market,Smartclima`s DWHR device has better performance to improve incoming water temperature.

Why Smartclima`s DWHR  has better performance than other brand DWHR?

How to Install & Connect “Drain Water Heat Recovery Power Pipe”

Three steps:
1, Cut and remove the existed drain pipe according to the purchased DWHR power pipe;
2, Put DWHR power pipe between the cutted drain pipe,and use pipe clamp to fix tightly;
3, Connect clean water pipe onto the DWHR power pipe. Finish.

The installation of  Drain Water Heat Recovery is very simple,you even can Do It Yourself with a tool Saw.DWHR unit becomes part of your drainage stack, usually in your basement, by cutting into a vertical or horizontal section and using the supplied connectors. The inside coils become part of your fresh water supply line by diverting the water through them. A DWHR unit can be installed with any combination of drainage pipe and fresh water piping (i.e., ABS, PVC, cast iron, copper, PEX, etc). For the best possible results, the heated fresh water leaving the DWHR unit should be routed to the inlet of your water heater as well as to the cold side of your water fixtures. Now when you have a shower, both your hot water and your cold water contain safely recycled energy.After install it,your hot water , whether traditional tank systems, instant or solar powered, will work at an efficiency that will help you realize a savings costs of up to 10%, making you part of the green revolution, enjoy it!

Models & Specification on Drain Water Heat Recovery Power Pipe from Smartclima:

– Designed and made by Smartclima team.
– Vertical using,with pipe-to-pipe design.
– Length available at 20″(inch),40″(inch),60″(inch),80″(inch),120″(inch)…
– Copper diameter(Drain connections) available at 2″(inch),3″(inch),4″(inch)
– Water connections(inlet & outlet) available at D=20mm,D=25mm,D=32mm.
– Compatible with any type of water heating system.
– Innovative design with double walls,let water absorb heat directly at max.
– Copper inner tube,to capture heat at max.Copper is used because it is a very conductive material, meaning that
heat can easily pass through it.
– PE  tube as outer shell,to keep heat inside,no heat escape to air.PE Tube as outer shell is used because it is a very good insulation material , meaning that the heat will keep inside,it wouldn`t escape to the air.Also,PE is a good material to resist aging,it can serve more than 40 years.
– Food grade material.PE and copper are permitted to use in the field of drink water,meet national standard on drinking water.
– Very High efficiency: 58% at 9.2 l/min (11.1kW) with 2000mm length.
– Creates no discernible pressure loss.
– Very short payback time:Pays for itself in 1 to 1.5year.
– It is affordable.Smartclima`s DWHR is the lowest price but with highest efficiency in the world.
– Reduces total building power energy consumption by up to 10%.
– Reduces green house gas emissions by almost 1 ton per year for a family of four.
– Reduce greenhouse gas emissions with lower energy consumption
– Increase efficiency of your tankless water heater
– Increase efficiency of your geothermal system
– Extend number of days your solar system can provide hot water without backup
– Extend the life of your hot water heater
– No leak;No Noise;No electicity required when working.
– No maintenance required.
– Durable: it will last more than 40 years.
– Very easy to install in new or existing homes,No need welding or brazing.You can D.I.Y install it.
– Proven product: many units are sold in the North America and Europe in 2012.
– Installation kit are included.

1), Drain Water Heat Recovery Model S is composed by single DWHR power pipe as below photo,length from 500mm to 3000mm,vertical installation,with rubber connector to connect drain pipe(in&out)

2), Drain Water Heat Recovery Model DS is composed by double DWHR power pipes with vertical connecting in series as below photo,length from 1000mm to 6000mm,vertical installation,with rubber connector to connect drain pipe(in&out)

3), Drain Water Heat Recovery Model M2S is composed by double DWHR power pipes with parallel connection as below photo,length from 500mm to 3000mm,vertical installation,with rubber connector to connect drain pipe.(You also can install 3,4,5 or more DWHR pipes with parallel connection according to your demand)

*Drain water heat recovery  *Grey water heat recovery  *Water heat energy recovery

A.  How doest Smartclima “Drain Water Heat Recovery Power Pipe” Work?
Drain Water Heat Recovery pipe transmit the heat energy from drain/grey warm water which flows from dishwasher, bathtubs,showers,sinks,washing machines. The incoming cold water captures and absorbs wasted heat and get preheated,then enter into water tank or faucet to mix with existed hot water.

B.  How will Smartclima “Drain Water Heat Recovery Power Pipe” benefit me?
Smartclima Drain Water Heat Recovery unit has features of Comfort,Convenience&Conservation.

Comfort: Smartclima DWHR unit can triple the shower-capacity of an electric storage water heater (while halving the cost of a shower) by recycling heat lost down the drain;

Convenience:Smartclima DWHR unit can eliminate waiting for a shower as the water heater recovers by tripling the First Hour Rating of an electric storage water heater;

Conservation: Smartclima DWHR unit can save vast amounts of energy (and reduce air pollution).DOE’s conservative estimate excluded nonresidential, commercial, industrial, state and federal applications, as well as Smartclima DWHR unit’s vast beneficial impact upon air pollution, thermal pollution of waterways and its potential to help conserve water in applications as simple as shortening shower warm-up times to ending a doubly-wasteful practice of adding cold water to hot industrial wastewater to avoid Btu taxes, notwithstanding Smartclima DWHR unit enables cost-effective cooling via recycling up to 85% of the available heat.

C.  Why Smartclima`s DWHR unit has better performance than other brand DWHR?
Because Drain Water Heat Recovery device from Smartclima has its own unique features.There is no space between hot drain water and clean cold water,the heat in drain water can be transfered to cold clean water directly;Another important characteristic is that Plastic shell prevent heat from escaping to air.Therefore,compared to other brand DWHR products in the market,Smartclima DWHR unit has better performance to catch drain heat and improve incoming water temperature.

D.  How can Smartclima DWHR unit be so effective; it seems too simple?
Gravity-fed, falling-film, double-wall-vented, balanced heat exchange is far from simple, as you will learn by pondering these questions & issues raised by consumers, engineers, architects, scientists, builders and editors. Smartclima Drain Water Heat Recovery unit’s simplicity derives from ultra-high transfer coefficients, patented technology, years of engineering development.

E.  Why use copper pipe as drain pipe?and why use plastic pipe as outer shell?
Smartclima DWHR unit is a hybrid product with copper and plastic.Copper is a very conductive material,it has best performance of heat exchanging,it can capture heat immediately at max.When the hot drain water flows down to the copper pipe,the heat can be transmitted to the clean cold water by copper wall quickly.

Plastic pipe is used because it is a very good insulation material, meaning that the heat will keep inside,it wouldn`t escape to the air.

The plastic pipe is made from HDPE(High Density Polyethylene),non-toxic,corrosion resistance.HDPE is Food Grade Plastic,it does not contain dyes or recycled plastic deemed harmful to humans,they are usually used on Food Package field and Drinkable Water Supply field. Also,HDPE has long service life,it can serve more than  40 years.

That`s why we choose copper pipe as drain pipe and use plastic pipe as outer shell for Smartclima Drain Water Heat Recovery Unit.

F.  How can Smartclima DWHR unit halve the cost of a hot shower, yet triple the shower-capacity of an electric water heater?
Typically, a 105F shower fed by 45-75F water at 2.25 gpm depletes a water heater’s stored energy at rates of 20 to 10 kW until the heater’s upper-element is energized and these rates are reduced to 15.5 to 5.5 kW, respectively. By feeding back 10 to 4 kW (50% to 40%), the Model S3-1500 can further reduce these depletion rates to extend showering-times by factors of about 2.8 to 3.7. In fact, third party testing at Old Dominion University found Smartclima Drain Water Heat Recovery unit boosted First Hour Ratings of a high efficiency 50-gallon electric water heater from 60 to 180 gallons. The significance of this finding is that gas-marketing ads attempt to move consumers away from clean and safe electric water heating by advertising “GAS WATER HEATERS HEAT TWICE AS FAST”; notwithstanding gas (and oil) water heaters are “the largest single-source polluter[s].”

G. … … See all “Frequently Asked Questions on Drain Water Heat Recovery“

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