What it delivers
The FLUENTPOWER FSP400C-2 KIT Tankless Flush Kit is a flush kit for descaling a tankless heat exchanger.
A flush runs descaler from the bucket, through the pump and the heat exchanger and back, until the scale dissolves; the service valves make the connection.
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.
Also on the listing: material: Plastic, Stainless Steel; model: FSP400C-2 KIT.
The listing gives dimensions of 6.7 in (L) x 6.2 in (W) x 10.8 in (H) and 1/2hp pump, 2pcs x 6' stainless steel hose, 5.3 gallon bucket with open lid 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
- Match it to your heater's fittings
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 | FSP400C-2 KIT | Retailer |
|---|---|---|
| Material | Plastic, Stainless Steel | Retailer |
| Dimensions (seller) | 6.7"L x 6.2"W x 10.8"H | Retailer |
| Voltage | 110 V | Retailer |
Rival units at this flow
More descaling and maintenance kits rated for similar demand
Final verdict
A practical descaling kit for yearly or hard-water flushing.
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