What it delivers
The Rheem RTG20124 Tankless Flush Kit is a flush kit for descaling a tankless heat exchanger.
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.
Listed details: features: Flush Kit; material: Stainless Steel; model: RTG20124.
The listing gives dimensions of 13.1 in (W) x 12.95 in (H), a weight of 0.27 g and hardware and instructions when applicable 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
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 | RTG20124 | Retailer |
|---|---|---|
| Dimensions (seller) | 13.1"W x 12.95"H | Retailer |
| Features (seller) | Flush Kit | Retailer |
| Product weight | 0.27 g | Retailer |
| Material | Stainless Steel | Retailer |
Rival units at this flow
More descaling and maintenance kits rated for similar demand
- SafeTech STTE-2083 Tankless Flush Kit
- Hercules 35230 Tankless Descaling Solution
- QwikProducts QT7712 Tankless Descaling Solution
- Rectorseal 68711 Tankless Descaling Solution
Full descaling and maintenance kits spec grid · Every Rheem unit in the catalog
Final verdict
A well-specified descaling kit for yearly or hard-water flushing.
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