ElectriChef Diamond 48″ Marine Built-In Electric Grill

The Marine model adds ½" Hardie Soffit insulation on the sides and back of the grill body — a thermal barrier specifically designed to protect fiberglass hull material, composite decking, and cabinetry from the sustained heat of an 8,800-watt grill. The standard built-in omits this insulation because it assumes a masonry or steel-stud enclosure. If you're installing in a fiberglass vessel, the Marine model is the correct and safe choice; the standard built-in is not engineered for that enclosure material.

The marine cut-out is 49⅝" wide x 24¾" deep x 10½" tall, measured from the top of the countertop surface — including any tile or finish material thickness in that 10½" height. These are larger than the standard built-in's cut-out (48⅜" wide x 24¼" deep) to accommodate the perimeter insulation panels. No bottom or sides are required inside the enclosure. Measure carefully before cutting; the insulation panels add to the overall footprint.

Yes. The Marine model can be installed in any outdoor kitchen island where the enclosure is fiberglass, composite, or another material that benefits from the added perimeter insulation. It is also the appropriate choice for any situation where extra heat shielding around the grill body is desirable. It installs and operates identically to the standard built-in, just with a slightly larger cut-out. A cover is recommended for installations without a roof.

A NEMA 6-50R receptacle rated for 208/220V on a dedicated 40-amp single-phase branch circuit. Extension cords must not be used under any circumstances. On a vessel, this circuit should be installed by a licensed marine electrician and must be capable of supplying the grill's 8,800-watt draw. Confirm that your vessel's shore power connection or onboard generator can support this load before purchasing.

No. The spec sheet states "No Bottom or Sides Required" inside the island cut-out. The grill's mounting flanges rest on the top surface of the countertop or deck and support the grill from above. The surrounding enclosure must be built from non-flammable materials.

A minimum of 3" of clearance behind the grill body for the hood to open fully. With the lid fully open, the grill stands 27" above the countertop, so plan overhead clearance accordingly — particularly under a hardtop or bimini.

Yes. The grill reaches 600°F — hot enough to produce proper sear marks and a caramelized crust on steaks, fish fillets, and seafood. You get the sear without any gas or charcoal flavor; the taste comes entirely from the food.

Each panel operates its own half of the cooking surface — temperature setting and a 10–60 minute countdown timer — fully independently of the other. Run one side at searing temperature and the other at a lower finishing temperature simultaneously, with no cross-zone interference. Both timers cut power automatically when they reach zero.

The grill powers on at 350°F with a 60-minute countdown on each zone. Adjust the temperature with the arrow buttons. When the timer reaches zero, power to the heating elements cuts off automatically — a meaningful safety feature on a vessel where an unattended grill poses a greater risk than on land. Press ON before the timer expires to reset to 60 minutes at your current temperature.

No. The stainless steel heat-flavor plate beneath the cooking grids distributes heat evenly across the full 48" surface — no burner-pattern hot spots, no cold zones. Consistent, even heat from edge to edge on every cook.

The owner's manual recommends preheating for 10–12 minutes at your desired temperature before placing food on the grill.

All four cooking grids and all four removable grease trays are dishwasher safe. You can also clean grids manually by soaking in hot soapy water to loosen buildup, then rinsing. For the stainless exterior, use warm soapy water and a soft cloth, wiping in the direction of the brushed grain. Never use abrasive cleaners, wire brushes, or scouring pads on any stainless surface or digital control panel — and rinse away salt spray regularly to maintain the 304 stainless finish in a marine environment.

No. The owner's manual explicitly prohibits extension cords. The grill must connect directly to a properly grounded 208/220V outlet. On a vessel, the outlet should be positioned behind the galley enclosure so the cord reaches without an extension.

ElectriChef's limited warranty covers the stainless steel grill assemblies for the lifetime of the original purchaser. Cooking grids are warranted for 5 years, the stainless steel heat-flavor plate for 3 years, and all other electrical and mechanical components for a minimum of 1 year from the date of purchase. The warranty covers defects in materials and workmanship; it does not cover damage from misuse or negligence. Labor is not included, and return transportation costs for defective parts are the buyer's responsibility.

Cooking performance is identical. Both models share the same 1,056-square-inch surface, 150°F–600°F temperature range, dual independent digital controls, dual 10–60 minute timers, 18-gauge 304 stainless construction, and 8,800-watt power draw. The sole difference is the Marine model's ½" perimeter insulation on the sides and back, and the correspondingly larger cut-out dimensions. You sacrifice nothing in output; you gain the insulation package appropriate for fiberglass installations.

A grill cover is not included. ElectriChef offers compatible built-in grill covers sized for the 48" model, available separately. Using a cover is particularly important in a marine environment to protect the stainless steel finish and digital controls from salt spray, moisture, and UV exposure when the grill is not in use.

ElectriChef grills are built in Temple, Texas, USA.

Yes. ElectriChef supports both current and legacy models with replacement parts including control boards, relays, and heating elements. Contact ElectriChef at (800) 442-7207 or visit their parts catalog online. Their US-based customer service team can help diagnose and identify the correct component.

Register directly with ElectriChef at electri-chef.com/register-your-grill. Registration is recommended to keep your purchase on record with the manufacturer for warranty purposes.