What it delivers
The Chromex CXTE-1694 Tankless Flush Kit is a flush kit for descaling a tankless heat exchanger; its listing says it fits most all tankless water heaters such as Rinnai, Bosch, Noritz, Rheem, Takagi, Tempra.
Hook the hoses to the heater's service valves, fill the bucket with vinegar or descaler and let the pump circulate it through the exchanger.
How often: Rinnai says at least once a year, more on hard water. How long: up to about 45 minutes in its consumer guide, at least an hour at 3 to 4 GPM for its SENSEI models.
Other listed details: material: Acrylonitrile Butadiene Styrene, Plastic, Polyvinyl Chloride; model: CXTE-1694; solution: citric acid.
The listing gives bucket, decaler solution, gritguard, hoses, water pump in the box.
Right unit for this house?
Install it when
- Yearly or hard-water flushing
- Owners who flush their own heater
Look at another unit when
- Heaters whose manual calls for a different method
Strengths and trade-offs
Strengths
- Descaling kit
- Names most all tankless water heaters such as
Trade-offs
- Fit depends on your valves
Install limits
- Figures are the maker's or seller's own. Flow at a rise is our estimate from the input; gas, venting and electrical work needs a licensed professional.
Rated performance
Every figure below comes from the source shown in brackets. Where the maker doesn't state something, we say so instead of estimating.
| Model number | CXTE-1694 | Retailer |
|---|---|---|
| Features (seller) | Descaling solution, right-angle hoses, citric acid-based cleaning solution | Retailer |
| Material | Acrylonitrile Butadiene Styrene, Plastic, Polyvinyl Chloride | Retailer |
| Solution | citric acid | Retailer |
| Fits | most all tankless water heaters such as Rinnai, Bosch, Noritz, Rheem, Takagi, Tempra | Retailer |
Rival units at this flow
More descaling and maintenance kits rated for similar demand
- Chromex CXTE-1976 Tankless Flush Kit
- Rheem RTG20124 Tankless Flush Kit
- SafeTech STTE-2083 Tankless Flush Kit
- Hercules 35230 Tankless Descaling Solution
Full descaling and maintenance kits spec grid · Every Chromex unit in the catalog
Final verdict
A sensible descaling kit for yearly or hard-water flushing.
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