Descaling My Bosch C1050ES Tankless Water Heater

A few weeks ago I descaled my Bosch Greentherm C1050ES-LP Condensing Tankless Water Heater and it was far easier than I had imagined it would be. The total elapsed time to do the complete job was less than an hour. I took a few pictures as I went through the steps.

The above picture shows the JC Whitlam Flow-Aide Descaler Kit. This kit contains the (2) 5' hoses, the submersible pump, the pump intake filter and one quart of Flow-Aide descaling solution.

The above picture shows my Bosch Therm C1050ES-LP condensing tankless water heater and my Webstone 44443WPR Lead-Free Isolation Valves. I took this photo after I had closed the two yellow-handled main water valves and after I had opened the two service ports. I had to place a bucket beneath the two valves to catch the water that was in the internal piping of the tankless water heater.

The above picture shows the two 5' hoses that come with the Descaling Kit attached to the two service ports on my Webstone Isolation Valves.

The above picture shows the Flow-Aide bucket and descaling solution. I had already put one gallon of cold water in the bucket and mixed in the one quart container of Flow-Aide solution. This descaling solution is non-toxic and bio-degradable.

The above picture shows the submersible pump output attached to the cold water connection on my tankless water heater. The pump is not plugged in yet.

The above picture shows the included intake filter attached to the submersible pump input. This filter prevents any debris from being run through the tankless water heater. The pump is still not plugged in.

The above picture shows the descaling process in action. Here you can see the hose from the hot water connection to my water heater just hanging into the bucket. You can also see that I have plugged the submersible pump into a GFCI protected 110 V power outlet.

I let the descaling process run for about 30 minutes. I then emptied out the bucket and rinsed it out thoroughly. I then put about a gallon of cold water into the bucket and I ran that cold water through my tankless water heater for about 5 minutes just to clean it all out.

Lastly, I disconnected everything and then I closed the two service ports on my Isolation Valves. I then opened up the two yellow handles to let the water flow back into my water heater. When I turned on a hot water demand everything worked perfectly!

FLOW-AIDE by JC Whitlam ~ Now GREEN!

The New FLOW-AIDE DeScaler solution is now biodegradable for tankless Water Heaters.

The kit includes 500 GPH pump with 25 foot electrical cord, bucket, hoses (5') and quart of FLOW-AIDE descaler solution.

FLOW-AIDE is excellent for cleaning:
Heat Exchangers
Water Heaters
Evaporators
Boilers
Condensers
Humidifiers
Potable Water Lines
Thermal Solar Panels
RUST, LIME and SCALE

Please note that using the deScaler solution is most easily achieved with Isolation Valves.

Globaltowne's PLUS kit includes the WEBSTONE isolation valves for ease of use.

The Flow-Aide Descaling PLUS Kit includes the following:

• 1 - 3.5 Gallon Bucket
• 1 - 350 GPH Pump
• 2 - 5 Foot Rubber Hoses
• 1 - Quart Flow-Aide
• 1 - Webstone Isolation Valve Kit (44443PR) with PRV

Please visit www.Globaltowne.com or call us at 888.726.9752

Descaling Powerstar AE-115 & AE-125

The electric tankless water heaters, Powerstar models AE115 and AE125 are high kilowatt electric tankless heaters that heat water on demand as the water passes through them. The modules inside consist of coiled elements that heat the water. The heating elements produce extreme heat inside the modules to heat the water on demand.

The heat that is produced by the heating elements in the modules sometimes counteracts with the mineral deposits in the water. If there is a high mineral content due to a hard water area then these mineral deposits known as "scale deposits" will over time attach themselves to the heating coils inside the modules.

All Bosch Powerstar electric tankless water heaters should never be descaled with any type of solution such as vinegar, muriatic acid, etc. The use of descalants flushed through the heater does not have much effect on the mineral deposits attached to the elements. Another point of trying to flush descalant through an electric tankless heater is that it will loosen some of the mineral deposits in the heater and will have a damaging effect on the flow transducer and other parts inside the tankless heater that detects the flow of water and will interrupt the signal to the circuit board itself.

The best protection against mineral deposits (scale) forming on the coils in the electric tankless heater is to check the quality of the water in your area before installing and if the water has a high mineral content then it is recommended to install a water softener or scale stopper system. The water softener or scale stopper will filter out almost all of the minerals and treat the water so the electric tankless water heater will have a longer life with less minerals building up inside.

Flow-Aide Descaling Solution Now Available at GlobalTowne.com

Flow-Aide descaling solution quickly dissolves water scale, lime, rust, and other water formed deposits, restoring efficiency to most all appliances. Flow Aide System Descaler is a non-toxic concentrate which is certified to NSF/ANSI 60 for use as a cleaner in potable water systems.

Running Flow-Aide through your tankless water heater periodically will lenghten the service life of your tankless water heater AND improve its efficiency!

How often you need to run the Flow Aide descaler through your tankless water heater depends on the quality of your water.

Flow-Aide is: Non-Corrosive, Non-Toxic, Fully Biodegradable, Safe to Handle and Zero V.O.C.

RECOMMENDED USES: Water Heaters, Boilers, Heat Exchangers, Chillers, Vacuum Pumps, Condensers, Evaporators, Tanks, Potable Waterlines, Ice Machines, Humidifiers and Water Operated Equipment.

IMPROVE EQUIPMENT EFFICIENCY: Water scale deposits are a significant cause of heat transfer loss, along with the subsequent increase in energy costs. In fact, even a thin layer of scale (1/32") can cause a 30% increase in the cost to operate that piece of equipment. Keeping the heating passages free of mineral deposits significantly improves efficiency, conserves energy, extends the useful life of the equipment, and saves you time & money.

GlobalTowne.com sells the Flow-Aide Descaler Solution, manufactured by J.C. Whitlam Manufacturing Co. This solutions is available in a 1 Quart Container and a 1 Gallon Container.

FLOW-AIDE System Descaler is specifically designed to dissolve the toughest water scale, lime, and rust deposits from virtually any piece of water based equipment. This powerful, yet totally safe, liquid is non-toxic, non-flammable, non-hazardous, non-corrosive and biodegradable. FLOW-AIDE System Descaler will not harm your personnel, equipment or our environment!

GlobalTowne also sells a Flow-Aide Tankless Water Heater Descaler Kit that contains the following:

• 1 - 3.5 Gallon Bucket


• 1 - 350 GPH Pump


• 2 - 5 Foot Rubber Hoses


• 1 - Quart Flow-Aide

This kit has everything you need, except for the Isolation Valve Kit.


Here are the steps for descaling your tankless water heater:

1. Disconnect power to water heater.


2. Close hot and cold isolation and service valves and remove service caps.


3. Pour 1.5 gallons of water into bucket and place under water heater.


4. Add contents of 1 quart bottle of Whitlam Flow-Aide into bucket (Bucket should be filled approximately 1/2 full).


5. Connect one hose to pump, and other end of same hose to cold service valve. Place pump in bucket.


6. Connect second hose to hot service valve. Place other end in bucket.


7. Open both hot and cold service valves.


8. Plug pump into grounded receptacle.


9. Allow pump to circulate Whitlam Flow-Aide solution through heater for 30-45 minutes. Unplug pump.


10. Close cold service valve. Remove hose from cold service valve, and replace service cap.


11. Disconnect the hose from the pump and remove pump from bucket. Discard Whitlam Flow-Aide solution.


12. Flush tankless water heater for 3-5 minutes or until water flows clear by opening the cold isolation valve and allowing water to exit through the hot service valve into a drain or bucket. If using a bucket, empty periodically.


13. Close hot service valve. Remove hose from service valve and replace service cap.


14. Open hot isolation valve.


15. Connect power to water heater and return appliance to service.

GlobalTowne also sells a Flow-Aide Tankless Water Heater Descaler PLUS Kit that also contains a Webstone Isolation Valve Kit 44443PR, including a pressure relief valve (PRV).

Steve