How much space will the CNS 150-1 Plus heat?

It is rated for about 150 sq. ft. at 1125 W. Larger rooms need multiple units or a higher-output model.

Does it need a special circuit?

Yes. It draws 15 A and must be hardwired to a dedicated 240 V circuit by a qualified electrician.

Can I use a remote thermostat with it?

Stiebel Eltron does not recommend remote line thermostats for Plus models. Use the built-in digital thermostat instead.

Does it have a timer and frost protection?

Yes. It has a timer and a frost setting that keeps the room above freezing at the lowest thermostat position.

Is it cheaper than a baseboard heater to run?

It uses the same electric resistance heat, so running cost per Btu is similar. It saves wall space rather than energy.

When is the price lowest?

The best new price was $269 at Amazon as of November 5, 2026, near the top of its recent range. Watch for drops outside heating season.

Stiebel Eltron CNS 150-1 Plus Wall-Mounted Convection Heater

Q: Where is the Stiebel Eltron CNS 150-1 Plus Wall-Mounted Convection Heater cheapest?

At Amazon, for $269.00, as of our latest check.

Q: What do buyers say about the Stiebel Eltron CNS 150-1 Plus Wall-Mounted Convection Heater?

Buyers like: Great prices; Quick service; Helpful human customer service. Common complaints: Tech support was in French, limiting help.

Q: Where can I buy the Stiebel Eltron CNS 150-1 Plus Wall-Mounted Convection Heater?

3 stores we checked sell it, including plumbEstore, Amazon, Home Depot.

Best price now

$269.00at AmazonObserved at 9:49 PM

Compared across 3 stores. Prices are checked against each store and labelled with when.

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Our take on the Stiebel Eltron CNS 150-1 Plus Wall-Mounted Convection Heater

The Stiebel Eltron CNS 150-1 Plus is a wall-mounted electric convection heater rated at 1125 W, enough for rooms up to about 150 sq. ft. It heats silently by natural convection, with a built-in digital thermostat, backlit display, timer and frost protection. At $269 at Amazon as of November 5, 2026, it sits at the top of its recent range among the 3 stores listing it new.

What reviewers say

Owners describe the CNS line as quiet and effective for small rooms, with a thermostat that holds temperature well. Complaints center on installation wiring and the limits of the built-in controls.

What people mention

NoisePraisedOwners say it runs essentially silent because there is no fan.
Heat outputMixedIt warms small rooms well but is slow to bring a cold room up to temperature.
InstallationCriticisedBuyers note it must be hardwired to a 15 A circuit, which adds cost and effort.
ThermostatPraisedThe built-in digital thermostat and backlit display are easy to set and hold temperature.
BuildPraisedOwners describe the steel casing as solid and the unit as compact on the wall.

About the Stiebel Eltron CNS 150-1 Plus Wall-Mounted Convection Heater

⭐ Modern design

CNS Trend and Plus are modern surface-mounted convection heaters. The sleek European slimline design works for stand-alone installation or makes an effective, efficient replacement for traditional baseboard heaters, accomplishing the same heating using significantly less room.

⭐ Naturally silent

CNS heaters use natural convection for draft-free operation. Cool room air flows in the bottom of the unit, is warmed by the heating element, and rises silently out the top to heat the room. The CNS is designed with a frost protection setting. The lowest thermostat setting will maintain an appropriately-sized room above freezing temperatures. Overheat protection is built in.

⭐ Heating flexibility

With its built-in thermostat, a single CNS is perfect as a stand-alone heating system in bathrooms or small rooms. Multiple CNS units can be placed strategically in larger spaces and their temperature settings adjusted individually for maximum comfort control. If desired, CNS Trend heaters may be wired to use a remote line voltage thermostat. Remote thermostats are not recommended for CNS Plus models.

⭐ Stiebel Eltron quality

The CNS Trend and Plus were engineered by Stiebel Eltron in Germany and are manufactured to Stiebel Eltron worldwide standards in our plant in China.

⭐ CNS Plus features backlit display screen

CNS Plus models feature a backlit digital interface with a useful suite of features that puts easy adjustments and more advanced functions like frost protection and night mode at your fingertips.

⭐ Key Benefits

• Attractive slimline European design

• Thermostat built into unit (Trend - analog, Plus - digital)

• Selectable temperature range from 45 – 86°F (7 – 30°C)

• Space-saving alternative for baseboard heaters

• Draft-free, silent operation

• Frost protection setting

• Easy, flexible installation with single or multiple units

Specifications

CNS 100-1 Plus

CNS 150-1 Plus

CNS 100-2 Plus