What it delivers
The FLUENTPOWER FSP250C-1A KIT Tankless Flush Kit is a flush kit for descaling a tankless heat exchanger.
The pump circulates vinegar or a descaling solution through the heater from a bucket for about an hour, connected to the service valves on the hot and cold lines.
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: Plastic, Stainless Steel; model: FSP250C-1A KIT.
The listing gives dimensions of 6 in (L) x 5.7 in (W) x 9.1 in (H), a weight of 10 lb and 1/4hp pump, 2pcs x 6' stainless steel hose, 4 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
- Check the connection size first
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 | FSP250C-1A KIT | Retailer |
|---|---|---|
| Material | Plastic, Stainless Steel | Retailer |
| Dimensions (seller) | 6"L x 5.7"W x 9.1"H | Retailer |
| Product weight | 10 lb | Retailer |
| Voltage | 110 V | Retailer |
Rival units at this flow
More descaling and maintenance kits rated for similar demand
Final verdict
A sensible descaling kit for yearly or hard-water flushing.
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