What it delivers
The Grundfos UP 10-16 Hot Water Recirculation Pump is a hot water recirculation pump.
It cuts the wait at distant fixtures by keeping hot water moving in the line; tankless heaters have a minimum flow, so follow the heater maker's recirculation instructions.
Use a timer or on-demand control so the heater isn't firing to keep the loop hot all day, and insulate the hot line to the far fixture.
Other listed details: material: Brass; model: UP 10-16.
The listing gives dimensions of 7.5 in (L) x 4 in (W) x 6.2 in (H), a weight of 0.27 g and comfort pm auto 115v 1-1/4 pum in the box.
Right unit for this house?
Install it when
- Long waits for hot water
- Owners who flush their own heater
Look at another unit when
- Heaters whose manual calls for a different method
Strengths and trade-offs
Strengths
- Recirculation pump
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 | UP 10-16 | Retailer |
|---|---|---|
| Material | Brass | Retailer |
| Dimensions (seller) | 7.5"L x 4"W x 6.2"H | Retailer |
| Product weight | 0.27 g | Retailer |
| Voltage | 115 V | Retailer |
Rival units at this flow
More descaling and maintenance kits rated for similar demand
Final verdict
A sensible recirculation pump for long waits for hot water.
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