COSMO COS-ERC304KBD Electric Range 30 Inch
- 4.8 cu. ft. convection oven, six oven functions
- 4 radiant elements under a ceramic glass top
- 3000W dual element, 9 in. 1500W and 6 in. 1500W zones
- Two 1200W elements plus a second 3000W element
- 240 volt electric supply
- 30 in. freestanding, 29.9 in. wide, 27 in. deep, 36.1 in. tall
- 1 year limited warranty, CSA listed
- 190 lb unit weight
Last refreshed Jun 13, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A straightforward electric range with a flexible dual element and a convection oven for standard kitchen openings. Rack count and cord details are not listed, so check those before planning the install.
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ASIN: B0DC22BVRQModel: COS-ERC304KBDCategory: Freestanding Ranges
Overview
Not a gas range or an induction unit, the Cosmo Haven is a freestanding electric range with radiant elements under a smooth ceramic glass top. A fan in the convection oven moves hot air around the food, and knobs run both the cooktop and the oven.
Flexibility on the cooktop comes from the dual element, which sizes its heat zone to small saucepans or wide skillets. The oven adds fan convection and several cooking modes. Rack count is absent from the listing, and the warranty runs short.
Who it's for
Households with an existing electric range hookup and a standard width opening will find it a direct swap. Cooks who rely on flame response or app control should shop for something else.
Pros and cons
- Dual element adapts to pan size
- Convection fan for even cooking
- Several specialized oven functions
- Hot surface indicator light
- Number of oven racks not listed
- Only a one year limited warranty
- No smart home features
- Heavy unit, hard to move into place
Performance notes
The dual element lets a small pan use only the inner ring, so less heat spills past the base, while a large pan gets both rings. Heat reaches the cookware through the glass, so flat pan contact governs how quickly pots respond. In the oven, the convection fan circulates air, which evens out browning across the rack.
Specifications
| Brand | Cosmo |
|---|---|
| Model | COS-ERC304KBD |
| Dimensions & fit | |
| Item weight | 190 pounds |
| Item Dimensions D x W x H | 27 × 29.9 × 36.1 inches |
| Capacity & performance | |
| Capacity | 4.8 cu ft |
| Heating Element | Radiant |
| Number of Heating Elements | 4 |
| Power & efficiency | |
| Fuel Type | Electric |
| Voltage | 240 volts |
| Element wattage | 3000 watts |
| Construction & materials | |
| Material Type | Stainless steel |
| Finish Types | Polished |
| Compatibility & installation | |
| Installation Type | Freestanding |
| Smart home compatibility | Not smart home compatible |
| Included components | |
| Included Components | Hot surface indicator light |
| Warranty & support | |
| Warranty Description | 1 year |
| Other details | |
| Control Type | Knob |
| Drawer Type | Baking, broiler |
| Specification Met | CSA |
| Cooktop surface | Ceramic glass |
| Oven functions | Convection, six oven functions |
Frequently asked questions
What comes in the box with the Cosmo COS-ERC304KBD?
The listing names a hot surface indicator light as the included component. Oven racks and a power cord are not itemized, so confirm them with the seller.
Can the Cosmo COS-ERC304KBD run on a gas line?
No. It is an electric range with radiant elements and needs an electric range circuit.
Is the Cosmo Haven electric range an induction cooktop?
No. The heating elements are listed as radiant, under a ceramic glass surface.
Is the Cosmo COS-ERC304KBD smart home compatible?
No. The listing states it is not smart home compatible.