Imperial®

IRT-18-NG Rethermalizer

Model IRT-18-NG Rethermalizer · by Middleby

Price as of Aug 3, 2026. Delivery and installation quoted with your order.

The Imperial IRT-18-NG is a gas, freestanding rethermalizer for commercial kitchen holding and retherm work, not a fryer or oven. It has an 18-gallon water capacity with four tube-fired burners and 140,000 BTU input, so it sits in a high-volume class for restaurants, catering, and institutional kitchens; it also includes auto-fill with rapid fill bypass, a 200°F preset thermostat, temperature limit safety shutoff, overfill protection, and moisture-protected electronic controls. The footprint is 16.5" W x 35.38" D x 47.13" H on four casters with two brakes, with plumbed water and drain connections, natural gas, and 1-year parts and labor warranty.

For exact dimensions and utility requirements, see the spec sheet.