Alto-Shaam Halo Heat Steam Tables & Food Wells - 400-HWI/D6

Alto-Shaam  Halo Heat Steam Tables & Food Wells - 400-HWI/D6

4-Pan Capacity • 6-3/8" Deep Well • Individual Thermostats • EcoSmart Efficiency

Give guests perfectly held entrées, sides and sauces without the headaches of steam tables. The 400-HW/D6 uses Alto-Shaam’s exclusive Halo Heat radiant technology to surround each pan with gentle, even heat—extending hold times, protecting food quality and cutting operating costs.

Features

• Waterless design—no plumbing, drains or costly steam generation to install or maintain.
• Halo Heat technology eliminates fans and harsh elements, maintaining moisture and flavor.
• (4) independent, flush-mountable thermostats for pinpoint temperature control in each well.
• 6-3/8" deep stainless steel well accepts standard 12" × 20" × 6" pans and fractional sizes with optional bars.
• EcoSmart system draws as little as 1.8 kW (208 V), slashing energy consumption.
• All-stainless construction for long-term durability and easy sanitation.
• Cools the work area—no escaping steam and no danger of scalding hot water spills.
• Full safety & sanitation approvals: cULus, UL EPH Classified (NSF/ANSI 4), CE, IPX3, TÜV NORD, UKCA.

Specifications

What our Experts Think  

• High-capacity hot holding performance: The 400-HWI/D6 is a large-format Halo Heat drop-in food well designed for continuous buffet, catering, and institutional service with maximum output stability.
• Advanced Halo Heat precision: Waterless radiant heating maintains even temperatures without steam or fans, helping preserve moisture, texture, and food quality over long holding periods.
• Independent multi-zone control: Multiple thermostatic controls allow operators to hold different foods at distinct temperatures simultaneously for improved menu flexibility.
• 4-pan high-volume configuration: Designed for up to four full-size pans, making it ideal for busy service lines with consistent demand.
• Waterless, no-plumbing design: Eliminates the need for water, drains, or steam systems, reducing installation cost and simplifying long-term maintenance.
• Energy-efficient EcoSmart engineering: Insulated construction minimizes heat loss and supports lower operating costs in continuous-use environments.
• Durable commercial build: Stainless steel construction ensures long-term reliability, hygiene, and resistance to heavy daily use.

                 
Q&A

Q: What is the Alto-Shaam 400-HWI/D6?
A: The 400-HWI/D6 is a commercial drop-in hot food well that uses Halo Heat® technology with individual thermostatic controls per well for precise, multi-item hot food holding.

Q: What is the pan capacity?
A: It typically holds (4) full-size 12" × 20" pans (6" deep), making it ideal for high-volume buffet and service lines.

Q: What is Halo Heat technology?
A: Halo Heat is a gentle radiant heat system that surrounds food evenly without steam, water, or fans—helping maintain moisture, texture, and temperature stability.

Q: Does it use water or steam?
A: No. It is a completely waterless system, eliminating plumbing, steam generation, and scale buildup common in traditional steam tables.

Q: What are the key benefits?
A: It improves food quality, reduces drying, lowers operating costs, and increases safety by removing hot water and steam hazards from the kitchen line.

Q: How is temperature controlled?
A: It features independent thermostatic controls for each well, allowing operators to set different temperatures for different foods simultaneously.

Q: Is it energy efficient?
A: Yes. The EcoSmart design reduces energy consumption (as low as ~1.8 kW depending on voltage) while maintaining stable holding temperatures.

Q: What type of installation does it use?
A: It is a drop-in countertop unit requiring only an electrical connection—no water or drainage system needed.

Q: What foods is it best for?
A: Ideal for hot entrées, sauces, vegetables, rice, proteins, and buffet-style service items that require long, safe holding times.

                   
Maintenance Tips

• Daily cleaning: Wipe stainless steel wells, flange, and exterior after cooling to remove grease and food residue for safe, hygienic operation.
• Waterless operation only: Halo Heat® is a dry radiant system—no water, steam, or plumbing required, eliminating scale and corrosion issues.
• Immediate spill cleanup: Since there is no drain, clean spills quickly to prevent staining, odor buildup, and hardened residue.
• Thermostat monitoring: Regularly verify each well’s independent temperature control to maintain consistent hot-holding performance.
• Use divider bars correctly: Ensure full pan divider setup for even heat distribution and flexible menu holding.
• Keep ventilation clear: Maintain open airflow around the unit to support stable radiant heating and prevent overheating.
• Avoid harsh chemicals: Use mild detergents only to protect stainless steel surfaces and extend equipment life.
• Electrical inspection: Check cords, plugs, and controls regularly to ensure safe, uninterrupted commercial operation.
• Prevent buildup zones: Focus cleaning on corners, pan rails, and edges where grease accumulates fastest.
• Routine servicing: Schedule preventive maintenance to ensure consistent heating accuracy and long-term reliability.