What it delivers
The HQMPC HQ-ISH201 3/4" Tankless Isolation Valve Kit is a pair of tankless service valves for flushing and isolating the heater.
With isolation valves on both lines, descaling is a hose-on, hose-off job; the hot-side valve usually carries the relief valve port.
Match the connection type (threaded IPS, sweat or push-fit) and size, usually 3/4 inch, to the heater and the pipe; most kits put the relief valve port on the hot side.
Listed details: connections: 0.75 in; material: Brass; model: HQ-ISH201.
The listing gives dimensions of 3.6 x 2.8 x 5.6 inches.
Right unit for this house?
Install it when
- New tankless installs
- Owners who flush their own heater
Look at another unit when
- Heaters whose manual calls for a different method
Strengths and trade-offs
Strengths
- Isolation valve 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 | HQ-ISH201 | Retailer |
|---|---|---|
| Material | Brass | Retailer |
| Dimensions (seller) | 3.6 x 2.8 x 5.6 inches | Retailer |
| Connections | 0.75 in | Retailer |
Rival units at this flow
More descaling and maintenance kits rated for similar demand
Final verdict
A well-specified isolation valve kit for new tankless installs.
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