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Home / Shop / Stiebel Eltron / CNS 300-2 Plus 240/208V, 3.0 kW Electric Convection Heater 202000

Stiebel Eltron CNS 300-2 Plus 202000
Stiebel Eltron

CNS 300-2 Plus 240/208V, 3.0 kW Electric Convection Heater 202000

$455.00
Available to order, ships from the supplier. Ask us for a lead time.

SKU 202000

Need it installed? In New Hampshire, our Keene crews do quick swap installs of what we sell: faucets, light fixtures, ceiling fans, toilets and more. Across the rest of New England, we arrange installation through trusted partners. Installation is quoted separately from your order. Book a consult for a quote or call (603) 795-0100.

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.

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.

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.

  • 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

At a glance

CNS 300-2 Plus (part number 202000) is a surface-mounted convection heater (fan-less; baseboard replacement). Rated heating power: 240 V: 3,000 W; 208 V: 2,250 W. Tier: Plus.

Reading the model name

  • 300 means rated kW (two numbers = two selectable power stages)
  • -2 means 240/208 V
  • Plus = upper tier with more features

Specifications from the manufacturer spec sheet

Electrical

Voltage 240 V or 208 V
Phase single
Heating power by voltage 240 V: 3,000 W; 208 V: 2,250 W
Current draw 240 V: 12.5 A; 208 V: 10.8 A
Minimum breaker 15 A
Wire 14 AWG copper
Heat output 240 V: 10,236 Btu/hr; 208 V: 7,677 Btu/hr
Electrical connection Junction box, rear (hard-wired)

Performance

Frost protection setting 45 °F
Heating area 300 sq ft
Controls Built-in electronic backlit digital thermostat/display

Physical and plumbing

Dimensions (H x W x D) 17.75 x 41.34 x 3.9375 in (450 x 1050 x 100 mm)
Weight 24 lb

Warranty

Warranty 3 years

Certifications

  • ETL listed to UL Std. 1278 (2021)
  • Certified to CAN/CSA Std. C22.2 No. 46
  • ISO 9001 (manufacturer)

Features

  • Backlit digital thermostat/display
  • Can be wired to existing wall-mounted thermostat
  • Pins in control casing can lock temperature or limit range
  • Frost protection 45 F
  • Overheat protection
  • Draft-free, silent operation

Good to know

  • Room-size estimate based on average insulation.

Documents

Specifications
BrandStiebel Eltron
Product typeSpace Heaters
Shipping
  • Free ground shipping on standard-size orders over $99.
  • Oversized items ship by LTL freight, free on freight orders over $750 (subject to carrier coverage).
  • Ships via UPS, FedEx or USPS; a physical address is required for UPS and FedEx.
  • Alaska, Hawaii, Puerto Rico, APO/FPO and international orders need a custom quote.
  • In-stock items can be picked up at 104 Emerald St, Keene, NH.
Full shipping policy
Returns
  • Returns accepted within 14 days of receipt with a Return Merchandise Authorization (RMA) number.
  • Call (844) 438-7674 or email cs@poshhaus.com to request an RMA.
  • Returns are inspected and subject to a restocking fee of 15–50% plus freight, depending on condition.
  • Special-order and some items are non-returnable, check before ordering.
Full return policy

About the brand

Stiebel Eltron

Stiebel Eltron was founded by Dr. Theodor Stiebel in 1924 to manufacture his revolutionary immersion water heaters. More than 90 years later, the company is still family owned and is a household name in Europe, known for the engineering and manufacturing excellence of our electric tankless water heaters, solar thermal equipment, heat pump water heaters, and the rest of our products. We have always engineered and…

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Reviews of related products

These reviews were written for similar products from the same collection, shown for reference.

★★★★★

EASY SETUP, WORKING FLAWLESSLY

Installed in my mom's house where a water maker off the furnace was leaking, had enough electric space in the panel box so we went this route instead of a propane tankless unit. Alot of people tried to change my mind but with this scenario I went ahead with and am very pleased, the wiring and pex plumbing supplies cost about $600 I also added a whole house filter and scale reducer inline before the unit. set the temp at 112 degrees so far it seems very good, will see what the future holds

Review of Tempra 24 Trend 240/208V, 24 kW copper tankless electric w. digital thermostat 239216

Natasha B. · Jun 4, 2026

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