Chefman 1.8L Glass Electric Kettle (RJ11-17-CTI-RL): problems, parts and running costs

Checked: 2026-10-17

Summary

The failures owners report most are leaks at the glass-to-metal seals — sometimes with fragments of a degrading silicone seal in the water — and units that stop working within months; descaling with white vinegar is the only routine maintenance. The running cost is electricity only: about $11.32 per year for one 1.5 L boil a day at an assumed 20 cents/kWh. At $34.99 from chefman.com it is a fair buy for preset-temperature tea brewing; under $23 it is a bargain.

Common problems and fixes

Leaks at the glass-to-metal seals — the most-reported family failure: a newly bought 1.8L variable-temperature infuser kettle leaked at both the top and bottom seams immediately, and a unit more than three years old leaked intermittently with what looked like fragments of a degrading silicone seal in the water [7]. Fix: stop drinking from a kettle shedding seal material and stop using one that leaks near the electric base; treat a leaking lower seal as a reason to request warranty service rather than keep running it [7]. The 1-year limited warranty covers manufacturing defects, though one owner’s two-month failure claim was not repaired or replaced [6][8].
Stops working shortly after purchase — a Best Buy owner with about three months of ownership reported the kettle died after two months and that the warranty request did not yield a repair or replacement; it is one firsthand account, not a quantified defect rate [6]. No fix was reported; use the 30-day direct-store return window for dead-on-arrival units [12].
Keep-warm does not work as documented — the exact-model manual describes an optional 2-hour hold on the 212°F setting (hold POWER for 2 seconds), the product page says up to 60 minutes, an independent tester could not get the feature to work at all (water fell from 212°F to 202°F in five minutes), and a Best Buy owner got about half an hour [1][2][3][6]. Fix: test keep-warm inside the return window and trust the unit, not the listing [2][3].
Infuser loosens or cannot be replaced — some owners say the infuser can loosen or fall into hot water, and a Reddit buyer could not find a replacement basket [6][7]. Fix: twist and slide the infuser onto the underside of the lid exactly as the manual describes; be careful removing it while hot [2].
Slow full-pot boiling — an independent test timed 9 min 23 sec to bring 1.5 L from 80°F to a rolling boil on this 1100 W kettle [3]; it is the expected tradeoff for lower power, not a defect. No fix; if speed matters, buy a 1500 W model instead [3][9].

Parts and consumables

No periodic replaceable water cartridge, capsule, proprietary cleaner, battery or subscription is required, and all routine removable parts are washable [1][2].

Descaling: white food-grade vinegar — the manual prescribes enough vinegar to cover the bottom about ½ inch, boiled and repeated with fresh vinegar if needed, then rinsed repeatedly; frequency depends on water hardness and use, with no branded mandatory descaler [2].

Yearly running cost

Computed from the independent ShouldIt test, which measured 0.155 kWh of wall energy to boil 1.5 L starting at 80°F on one retail sample at 115 V [3]. One such batch a day for 365 days is 56.575 kWh per year; at an assumed 20 cents/kWh that is $11.32 per year, and two such batches a day is 113.15 kWh / $22.63 at the same rate [3]. The figure excludes energy spent holding temperature, and partial pots, harder water, altitude and different household voltage all change the bill [3]. There are no subscriptions, cartridges or pods; descaling vinegar is the only other recurring input, with no verified annual cost [2].

When it is a good buy

Chefman direct lists the RJ11-17-CTI-RL at $34.99, in stock (chefman.com, October 2026) [1].
Best Buy lists the same version at $34.99, sold and shipped by Chefman Direct (October 2026); an older listing showed a $29.99 promotion and a $10.99 clearance that was already unavailable — neither is a buyable offer [4].
Walmart showed the exact kettle at $27.96 discounted from $34.99, sold by Chefman Direct (indexed snapshot; indicative, not guaranteed live or nationwide) [5].

Value bands from the research: under $23 is an excellent buy; $23–$30 is very good if you actually want the five setpoints and infuser; $31–$36 is the fair published level but weak if you prioritize fast full-pot boiling; $37–$45 is not compelling beside the 1500 W Fast-Boil and 1750 W Lightning; above $45 prefer the Lightning or another variable-temperature kettle. Never pay extra for the “seven presets” shorthand — the real count is five [1][2][3][9][10].

Named alternatives:

Chefman Fast-Boil RJ11-18-PL (1.8L), $27.99 direct, 1500 W — the better choice when fast plain boiling is the only job; it has no temperature setpoints or infuser [9].
Chefman Lightning RJ11-18-SCTI-HP (1.8L), $49.99 sale / $59.99 regular, 1750 W — the better choice when you want faster boiling, adjustable temperature and a 1-hour hold without this kettle’s slow full-pot time [10].
Hamilton Beach 40880G (1.7L), $34.99 direct, 1500 W stainless — the better choice when you prefer stainless construction and simple boil-and-off operation with no tea setpoints [11].