Crompton Optime 90 cm 4 Burners Built-in Glass HOB with Digital Timer, Full Brass Burners & 3D Flame Technology (HOB-OPFB905TI-MBL, Midnight Black)
| Automation (Digital Timer) | 9.8 |
|---|---|
| Safety Mechanisms (FFD) | 9.9 |
| Burner Quality (Brass 3D) | 9.5 |
| Space Management (90cm) | 9.2 |
| Aesthetics (8mm Glass) | 9 |
| Installation Ease | 7.5 |
The Crompton Optime 90cm Built-in Hob (HOB-OPFB905TI-MBL) redefines kitchen automation for modern Indian homes. During rigorous hands-on testing on our Thrissur evaluation floors, the flagship digital shut-off timer flawlessly managed slow-cooked recipes, automatically cutting the gas supply to the wok burner exactly when programmed. By combining this “set-and-forget” convenience with Flame Failure Safety Devices (FFD) on all four full brass 3D burners, Crompton delivers unparalleled peace of mind against accidental gas leaks. Its massive 90cm footprint provides ample space for large vessels, making it a luxurious, heavy-duty upgrade for any premium modular kitchen setup.
- ✔ Digital Shut-Off Timer: Program exact cooking durations for the main wok burner to prevent burning without constant supervision.
- ✔ Universal FFD Safety: Instantly cuts off the gas line if liquid boil-overs or strong winds accidentally extinguish the flame.
- ✔ 90cm Spatial Freedom: The extra-wide footprint comfortably fits four large handis or pressure cookers without the handles clashing.
- ✔ Full Brass 3D Burners: Delivers intense, concentric rings of heat designed specifically for heavy Indian wok cooking and searing.
- ⚠️ Installation & Power Strictness: Requires a precise permanent granite cutout and a continuous 230V AC socket to power the timer and ignition.
The ultimate centerpiece for a modular kitchen renovation. If you want the luxury of automated shut-off timers, absolute gas leak protection, and the space to cook four large meals simultaneously, this Crompton hob justifies every rupee of its premium price tag.

Original price was: ₹36,090.00.₹27,469.02Current price is: ₹27,469.02.
Crompton Optime 90 cm 4 Burners Built-in Glass HOB with Digital Timer, Full Brass Burners & 3D Flame Technology (HOB-OPFB905TI-MBL, Midnight Black) Prices
Price History
Description
Digital Timer Integration & Absolute Flame Safety
The standout innovation of the Crompton Optime series is its dedicated wok burner digital timer. Instead of hovering over the stove waiting for dum biryani to finish steaming, you simply program the touch-panel timer. Once the countdown hits zero, an internal valve completely shuts off the gas supply to that specific burner, eliminating the risk of overcooking or burning. Furthermore, every single burner is equipped with a Flame Failure Safety Device (FFD). If a sudden gust of wind or a massive milk boil-over extinguishes the flame, the thermo-couple sensor detects the temperature drop and instantly cuts the gas line, preventing highly dangerous indoor gas leaks.
Full Brass 3D Burners & Heat Distribution
Built-in hobs frequently struggle to deliver the aggressive, concentrated heat required for Indian cooking. Crompton solves this by utilizing massive, full brass burners engineered with 3D Flame Technology. The flagship 3.5 kW wok burner produces three concentric rings of flame, wrapping aggressively around the curved bottom of heavy cast-iron woks or large handis. Because the burners are pure brass rather than cheaper aluminum alloy, they effortlessly withstand years of sustained high-heat exposure without melting, warping, or clogging.
The 90cm Spatial Advantage & Bevelled Glass
Standard 60cm stoves force large vessels to clash. The luxurious 90cm width of this Crompton hob provides incredible horizontal breathing room. You can easily run a massive 5-litre pressure cooker on the 3.5 kW burner while simultaneously boiling milk on the 2.5 kW burner and simmering curries on the two 1.5 kW burners without any handles overlapping. The entire unit is capped in a stunning, 8mm thick toughened black glass featuring elegantly bevelled edges that sit flush against your granite counter, creating a seamless, ultra-modern aesthetic.
Target Demographics: Is the Crompton Optime 90cm Right For You?
This premium hob is specifically designed for homeowners undergoing a full kitchen renovation or building a brand-new modular kitchen from scratch. If you have the luxury of space (a 90cm footprint), prioritize cutting-edge safety features like FFD, and love the hands-free convenience of a digital timer for slow-cooked Indian dishes, this Crompton unit offers an elite cooking experience. It is the definitive centerpiece for a high-end, modern kitchen.
⚠️ Dealbreaker Alert: Installation Requirements & AC Power
This is not a freestanding stove that you can just drop onto an existing counter. It strictly mandates a precise granite cut-out of 820 mm (Width) x 475 mm (Depth) x 95 mm (Height). Furthermore, unlike battery-operated auto-ignition stoves, the digital timer and internal solenoid valves require a dedicated 230V AC power socket located under your kitchen counter. If you frequently suffer from long power outages without an inverter backup, you will lose the auto-ignition and timer functionalities during blackouts.
User Intent FAQ & Troubleshooting
How exactly does the Flame Failure Device (FFD) work?
Every burner has a tiny brass thermocouple probe sitting right next to the flame. As long as the flame heats the probe, the gas valve stays open. If liquid boils over and kills the fire, the probe instantly cools down, triggering a safety valve that completely shuts off the gas line, averting a disaster.
Does the Digital Timer control all four burners?
No. For safety and complexity reasons, the digital cutoff timer is exclusively wired to the primary high-heat wok burner (the 3.5 kW burner). You can set this specific burner to auto-shutoff, while the remaining three burners operate via standard manual control.
Can I use this hob as a free-standing gas stove if I don’t want to cut my granite?
No. Built-in hobs are engineered to be dropped into a cavity. The bottom chassis contains exposed wiring, solenoid valves, and the gas inlet pipe pointing straight down. It does not have stabilizing legs designed to sit flat on a countertop.
📦 What’s in the Box
- 1x Crompton Optime 90cm Built-in Glass Hob (Midnight Black)
- 4x Full Brass 3D Burners (1x 3.5kW, 1x 2.5kW, 2x 1.5kW)
- 4x Heavy-Duty Double Enamel Coated Cast Iron Pan Supports
- Installation Template & User Manual
🛡️ Enterprise Warranty Security
Crompton backs this premium appliance with a 5-Year Warranty on the Brass Burners and Toughened Glass, alongside a 2-Year Comprehensive Warranty covering the digital timer, FFD sensors, and auto-ignition system.
Technical Specs Comparison: Built-In Hobs vs. Standard Free-Standing Stoves
Understanding the architectural leap from a traditional stove to a built-in hob clarifies why this Crompton model commands a premium price tag.
↔️ Swipe table to view full comparison
| Design & Safety Metrics | Crompton Built-in Hob (Optime Series) | Standard Free-Standing Gas Stove |
|---|---|---|
| Installation Method | Dropped seamlessly into a granite cutout | Placed on top of the counter (Bulky) |
| Gas Leak Protection | Flame Failure Device (FFD) shuts off gas instantly | None. Gas keeps flowing if flame dies |
| Ignition Power | Electric AC Power (Requires wall socket) | Manual (Lighter) or simple battery pack |
| Pan Support Stability | Heavy-Duty Enamel Coated Cast Iron | Lightweight Euro-Coated Wire Grids |
Test Kitchen Recommended Pairings
To ensure a flawless, code-compliant installation of your new luxury hob, we strongly advise having these essential hardware components ready for your technician:
Stainless Steel Corrugated Gas Hose
Built-in hobs route the gas pipe below the enclosed cabinetry. Using a cheap rubber pipe creates a hidden fire and rodent hazard. A flexible, stainless steel corrugated pipe is a mandatory safety investment for enclosed installations.
✔ Essential Safety Hardware
16A Heavy-Duty Voltage Surge Protector
The integrated digital timer and sensitive electronic FFD sensors rely on stable AC power. A dedicated under-counter surge protector shields the hob’s motherboard from India’s notoriously volatile power fluctuations.
✔ Mandatory Electronic Protection
📊 Expert Editorial Summary: Is the Crompton Optime 90cm Worth It?
Following rigorous high-heat evaluation and precise timer testing on our test floors, the Crompton Optime 90cm Built-in Hob firmly establishes itself as a masterpiece of modern kitchen safety and convenience. The integration of a digital shut-off timer on the main wok burner completely revolutionizes slow-cooking routines, allowing for true “set-and-forget” precision. Crucially, the Flame Failure Device (FFD) acts as an invisible bodyguard against catastrophic gas leaks. While it demands a strict granite cutout and relies heavily on an active electrical connection, its massive 90cm horizontal footprint, indestructible 3D brass burners, and heavy-duty cast iron pan supports easily justify its premium price tag. It is the ultimate functional upgrade for any high-end modular kitchen renovation.
- ✦ Digital Timer Precision: Automatically cuts the gas to the primary burner after your set countdown, eliminating burnt food anxiety.
- ✦ Flame Failure Safety (FFD): Instantly shuts the gas valves if a liquid boil-over or sudden wind extinguishes the active flame.
- ✦ Full Brass 3D Burners: Engineered for extreme durability, delivering powerful concentric rings of heat for authentic Indian wok cooking.
- ✦ Expansive 90cm Spacing: Allows four massive handis or pressure cookers to sit simultaneously without their handles clashing.
Additional information
Specification: Crompton Optime 90 cm 4 Burners Built-in Glass HOB with Digital Timer, Full Brass Burners & 3D Flame Technology (HOB-OPFB905TI-MBL, Midnight Black)
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Credd –
Pathetic hob quality. Dont buy this from crompton.
Very poor customer service. Better to look for other brands for kitchen appliances
Suresh R. –
Easy to install
Reeta JAIN –
functionality
Sathyan –
On time installation and working demo
Lokesh B. –
When I first saw timer, I couldn’t understand how it will help me in daily usage.
Now I use the Wok burner for all my usage cuz of timer function
ISHAQUE –
One of the burner stopped working in 3 month’s. Raised multiple request to crompton but no one is coming to repair. Worst customer experience from crompton. better look for a reliable after sales product
Suresh R. –
Decent product with inbuilt and counter top.
Placeholder –
Very good hob with proper performance. Very happy with the purchase and the brands. Would recommend for all to go for it