What it delivers
The Nature's Freedom NFAP-2137 Tankless Descaling Solution is a descaling solution for tankless water heaters.
It's the liquid side of a flush: mix it as the label says and circulate it through the heater with a flush pump.
Makers differ here. Rinnai's procedures use white vinegar and say never to use chemical solutions; follow your own heater's manual.
Listed details: model: NFAP-2137; solution: Non-toxic.
The listing gives dimensions of 3 x 3 x 7 inches; 2.37 pounds and a weight of 2.4 lb.
Right unit for this house?
Install it when
- Flushing a scaled heat exchanger
- 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 solution
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 | NFAP-2137 | Retailer |
|---|---|---|
| Item form | Liquid | Retailer |
| Scent | Unscented | Retailer |
| Product weight | 2.4 lb | Retailer |
| Material feature | Non-Toxic | Retailer |
| Dimensions (seller) | 3 x 3 x 7 inches; 2.37 pounds | Retailer |
| Solution | Non-toxic | Retailer |
Rival units at this flow
More descaling and maintenance kits rated for similar demand
Final verdict
A well-specified descaling solution for flushing a scaled heat exchanger.
Buy this unit
Our links open this exact model's product page. Prices and stock change; check what's included before you order.
Each button opens this exact model. We may earn a commission on tracked links; it never changes what we publish. Disclosure