Heat exchanger cleaning

[crs7200]

Hello,I did a search but resulted nothing.

I have OWB that hooks to a forced air furnace using a water - air heat exchanger. There's a LOT of lime in the water in my area, and I think that it is starting to affect the heat exchangers ability to do it's job. Anyone know what I can use to break up and clean out the lime and any other minerals that may be crusted on the inside of my exchanger? Thanks in advance.

 

[bmblank]

CLR definitely cuts the lime, but I'm not sure of the implications of having it in your system.

 

[Bob Rohr]

CLR definitely cuts the lime, but I'm not sure of the implications of having it in your system.

Maybe invest in one of these kits. http://www.flow-aide.com/

They were designed to flush tankless heaters. Cut in a couple Webstone valves so you can easily tap in and flush.

 

[Fred61]

What's the total volume of your system? A couple hundred gallons? You aren't going to get much scale from 200 gallons unless you add a considerable amount of water over time. How much water do you add? You mostly will get scale build-up in a DHW system where fresh water is constantly getting heated, used and replaced while leaving the minerals behind.