Safe · Certified · Kerala's Trusted Partner

LPG &
Natural Gas
Piping Solutions

Complete design, supply, installation, testing, and commissioning of LPG and Natural Gas pipeline systems for commercial kitchens, hotels, hospitals, industries, and institutions across Kerala and beyond.

Typical Gas Pipeline System
LPG REG V NG IN METER
LPG Manifold Pressure Regulator Isolation Valves NG Metered Inlet Distribution Network
🔵 LPG VOT & LOT Systems
🟢 Nat. Gas Pipeline Distribution
🔄 Conversion LPG ↔ NG Changeover
🏭 End-to-End Design to Commissioning
Division 01 · LPG Systems

LPG Pipeline Systemsa

We design and install LPG manifold and pipeline systems based on your fuel consumption, layout, and operational requirements. Suitable where piped Natural Gas is unavailable or where cylinder-based solutions are preferred.

Basic · VOT
VOT — Vapour Off-Take
LOW TO MEDIUM CONSUMPTION

LPG vapour is drawn directly from cylinders through natural vapourisation. A basic, lower-cost setup suitable only for small and light-use applications with predictable, low gas demand.

  • Vapour drawn directly from cylinder
  • No vapouriser — limited to natural evaporation rate
  • Supply rate drops in cold weather or heavy use
  • More cylinders needed for higher loads
  • Risk of gas pressure drop during peak demand
  • Suitable only for small restaurants and low-demand kitchens
Best for small setups with low, intermittent gas demand only.
⭐ Recommended
✦ Advanced · LOT
LOT — Liquid Off-Take
HIGH PERFORMANCE · UNINTERRUPTED SUPPLY

LPG is drawn in liquid form and converted to vapour by an external vapouriser — delivering a consistent, high-volume gas supply regardless of weather, time of day, or demand spikes. This is the system we recommend for virtually all serious commercial and industrial applications.

  • Consistent gas pressure at all times — even during peak demand
  • Uninterrupted supply — vapouriser ensures steady flow always
  • Far fewer cylinders required — saves space and handling costs
  • Works reliably in all weather conditions
  • Scales up easily — integrates with bulk LPG storage
  • Ideal for hotels, hospitals, large kitchens, boilers, and industries
  • Lower cost per unit of gas consumed at high volumes
Typical Configurations
47.5 kg Cylinders
Jumbo Cylinder Banks
Vapouriser Unit
Bulk LPG Storage
✦ Why LOT is Better
No pressure drop during busy hours
VOT systems struggle under heavy load — flames weaken, cooking slows. LOT maintains steady pressure at all times.
Much lower cylinder handling
Fewer cylinders, less frequent changeovers, less manual labour — and significantly reduced risk of accidents during cylinder swaps.
Better economics at scale
Bulk LPG storage via LOT brings the price per kg down substantially compared to individual cylinder purchases.
Ready for growth
As your facility expands, a LOT system scales — simply increase vapouriser capacity or add bulk storage. VOT systems hit a ceiling quickly.
🔧
System Design & Engineering

We calculate load requirements, pressure drops, pipe sizing, and manifold configuration based on your exact layout and peak consumption data.

🛠️
Supply, Installation & Testing

Complete supply of pipes, fittings, regulators, valves, and manifolds. Installation by trained technicians followed by full pressure and leak testing before handover.

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Safety Compliance & Certification

All installations carried out to applicable standards. Documentation and compliance records provided for insurance, licensing, and regulatory purposes.

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Automatic Changeover Systems

Automatic changeover regulators ensure uninterrupted gas supply when one cylinder bank empties — critical for kitchens and hospitals where supply cannot be interrupted.

Division 02 · Natural Gas

Natural Gas Pipeline Systems

Where piped Natural Gas supply is available, NG pipelines offer the cleanest, most convenient and cost-efficient fuel solution — no cylinders, no storage, no interruptions.

♾️
Continuous, Uninterrupted Supply

Natural gas from a city gas distribution network flows continuously — no cylinder monitoring, no changeovers, no risk of running out mid-service in a busy kitchen or industrial process.

🌿
Cleaner Combustion

Natural gas is the cleanest-burning fossil fuel — lower CO₂, virtually zero particulate emissions, and no sulphur. Ideal for commercial kitchens with enclosed ventilation and industries under environmental compliance pressure.

💰
Lower Operating Cost

In areas where city gas is available, NG is typically more economical per unit of heat energy than LPG or diesel alternatives — especially for high-consumption facilities running long daily hours.

🏗️
No Storage Infrastructure

No cylinder yard, no bulk tank, no delivery scheduling. NG pipelines connect directly to the city supply main, freeing up space and eliminating the logistics burden of fuel management.

⚖️
Regulated Pressure Distribution

Safe, metered supply at controlled pressure. Our pipeline systems include pressure regulation at each offtake, isolation valves, leak detection provisions, and full commissioning testing.

What We Supply & Install

We handle the complete NG piping scope from the city gas inlet to the final equipment connection — including internal distribution network, pressure regulation, metering, isolation, and all safety fittings. Suitable for commercial kitchens, hotel boiler rooms, hospital utility systems, and industrial process heating.

End-to-EndDesign to Commissioning
Leak-ProofPressure & Safety Tested
MeteredAccurate Consumption Data
CertifiedStandards-Compliant Install
Ready to Switch to Natural Gas?

Once Natural Gas supply is confirmed at your premises, we handle the entire internal installation — from the city gas inlet point to every burner and appliance connection. We also manage conversions from your existing LPG or diesel system to NG as a single project, with minimal disruption to your operations.

Talk to Our NG Team →
Fuel Conversions

Switching Fuels? We Handle Everything.

We specialise in complete fuel changeover projects — from diesel, solid fuels, or other conventional sources to cleaner, more efficient LPG or Natural Gas systems.

⛽➡️🔵
Efficiency Upgrade
Diesel / HFO to LPG

Many hotels, restaurants, and food processing units still run on diesel or heavy fuel oil for cooking and heating. Switching to LPG delivers cleaner combustion, lower emissions, easier temperature control, and often lower fuel cost per unit of heat generated.

  • Audit of existing fuel system and appliances
  • LPG system design (VOT or LOT) based on load
  • Burner and appliance conversion or replacement
  • Manifold and pipeline installation
  • Testing, commissioning, and staff training
⛽➡️🟢
Cleanest Option
Diesel / LPG to Natural Gas

Direct conversion from diesel or LPG to Natural Gas — ideal for facilities in areas with NG availability that want to make a single transition to the cleanest, most cost-efficient fuel in one project. We manage the full scope from existing system decommissioning to NG commissioning.

  • Existing fuel system survey and decommissioning plan
  • NG internal pipeline design and installation
  • Equipment conversion — burners, jets, controls
  • City gas connection coordination
  • Complete commissioning and handover
🪵➡️🔵🟢
Major Upgrade
Solid Fuels to LPG or Natural Gas

Many commercial kitchens, institutions, and small industries still rely on firewood, coal, or other solid fuels — dealing with smoke, heat, ash disposal, inconsistent temperatures, and increasing regulatory pressure. Converting to LPG or NG transforms operational cleanliness, safety, cooking precision, and staff working conditions in one step.

  • Site audit of current solid fuel setup and appliances
  • Selection of LPG (VOT/LOT) or NG based on supply availability
  • Replacement or retrofitting of solid fuel burners and stoves
  • Full gas pipeline design, supply, and installation
  • Ash pit and infrastructure decommissioning guidance
  • Commissioning, safety testing, and operator training
💡 Not Sure Which Conversion Makes Sense for You?

The right choice depends on your current fuel, consumption volume, NG availability, equipment age, and long-term cost targets. Our team will carry out a free site assessment and recommend the most practical and cost-effective conversion route for your specific situation. Contact us and we will walk you through the options.

Our Service Process

From Enquiry to Commissioning

Every project follows a structured process that ensures your gas system is safe, certified, and performing from day one.

📐
Site Survey & Design

We survey your site, understand your fuel load, layout constraints, and compliance requirements. We then design the optimal pipeline system — sizing pipes, regulators, valves, and manifolds precisely.

📦
Material Supply

We supply quality pipes, fittings, regulators, manifolds, isolation valves, and all system components — from reputable manufacturers meeting applicable standards.

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Installation

Our trained installation team carries out the complete pipeline work — from inlet to final equipment connections — with clean, professional routing and secure jointing throughout.

Testing & Commissioning

Full pressure testing, leak testing, regulator calibration, and appliance commissioning. We only hand over when every part of the system has passed our safety checks and is operating correctly.

Where We Work

Applications Across Sectors

Our gas piping systems are operational in a wide range of commercial, institutional, and industrial settings across Kerala.

🏨
Hotels & Resorts

Large-scale kitchen gas supply, banquet hall cooking stations, bakery and laundry heating. LOT LPG or NG systems handling heavy continuous loads across multiple kitchen sections.

LPG LOTNatural GasConversion
🍽️
Restaurants & QSR

Commercial kitchen gas piping for ranges, fryers, tandoors, and steam equipment. VOT or LOT depending on size. Automatic changeover for uninterrupted service.

LPG VOTLPG LOTNatural Gas
🥐
Bakeries & Food Courts

Consistent gas pressure is critical for baking. We design bakery gas systems for ovens, proofers, and hot counters — with pressure regulation ensuring uniform heat output.

LPGNatural Gas
🏥
Hospitals & Clinics

Hospital kitchen and CSSD gas supply. LOT LPG for reliability where NG is unavailable. Strict compliance requirements handled — including documentation for hospital licensing authorities.

LPG LOTNatural Gas
🎓
Schools, Colleges & Hostels

Institutional kitchen gas systems for high-volume cooking. Simple, safe VOT or LOT installations sized for daily meal production requirements with safety compliance as a priority.

LPGNatural Gas
🏭
Industries & Factories

Process heating, boiler fuel, industrial ovens, furnaces, and canteen kitchens. High-capacity LOT or NG systems for continuous industrial operation. Integration with existing boiler and thermal systems.

LPG LOTNatural GasBoiler Fuel
🧪
Laboratories & Pharma

Precision gas supply for laboratory burners, autoclaves, and pharmaceutical process equipment. Clean, regulated NG or LPG distribution with individual isolation at each point.

Natural GasLPG
🏗️
Commercial Buildings

Central gas distribution for multi-tenant commercial complexes, food courts, and mixed-use developments. Metered distribution systems with individual shutoffs per tenant or zone.

Natural GasLPGMulti-Zone
Why Choose Us

Trusted Gas Piping Specialists

Thermal Engineers brings 45 years of thermal and combustion engineering experience to every LPG and Natural Gas piping project.

01
Thermal & Combustion Engineering Background

Gas piping is one part of fuel management — understanding combustion, burner requirements, and thermal loads is what makes our designs genuinely optimised rather than just code-compliant. We design gas systems that perform well at the burner, not just at the meter.

02
Both LPG & NG Under One Roof

Most contractors specialise in one fuel type. We handle both LPG and Natural Gas systems — which means we give you unbiased advice on which fuel solution is right for your application, and we manage conversions between the two without needing to change contractors.

03
End-to-End Project Delivery

From the initial site assessment and system design through to material supply, installation, testing, commissioning, and compliance documentation — we manage the entire scope. One point of contact, one accountable team from start to finish.

04
Kerala-Based with Fast Response

We are headquartered in Kerala and serve the local commercial and industrial market. Fast site visits, quick project turnaround, and accessible after-commissioning support from our local team — not a distant contractor who leaves the state after handover.

Safety & Standards

Safety is Non-Negotiable

Every gas installation we carry out is designed, installed, and tested to the highest safety standards. Gas systems that are not done right are a serious hazard — there are no shortcuts.

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Pressure & Leak Testing

Every installation is pressure-tested and leak-tested before commissioning. We use calibrated instruments and follow systematic testing protocols — no system is handed over until it passes all tests.

🎛️
Pressure Regulation at Every Stage

Correct pressure regulation is the foundation of a safe gas system. We size and install regulators at the manifold, at mains entry, and at individual offtakes — ensuring safe and stable pressure throughout.

🚪
Isolation & Emergency Shutoff

Strategic isolation valves at every branch and individual appliance connection, plus clearly labelled emergency shutoff points — enabling quick, safe shutdown in any emergency scenario.

📋
Standards Compliance

All systems are designed and installed in accordance with applicable Indian and international standards for LPG and Natural Gas piping. Documentation provided for regulatory and insurance purposes.

👷
Trained Installation Team

Gas piping work is carried out only by our trained and experienced technicians. No subcontracting of critical installation work — our own team is responsible for every joint and connection.

🎓
Operator Handover & Training

We walk your staff through the system at handover — covering safe operation, what to do in an emergency, how to shut off supply, and basic maintenance checks to perform regularly.

Common Questions

Frequently Asked

VOT (Vapour Off-Take) draws LPG vapour directly from cylinders through natural evaporation — simple and lower cost, suitable for low to medium consumption. LOT (Liquid Off-Take) draws LPG in liquid form and converts it to vapour using a vapouriser — required for high-consumption applications like large hotels, hospitals, and industrial kitchens where continuous supply and higher flow rates are needed.
Yes — fuel conversions are one of our core services. Whether you are running on firewood, coal, diesel, or HFO, we survey your existing setup, design the appropriate LPG or Natural Gas system, handle all installation and equipment conversion, and commission the completed system. The process typically takes 2–5 days for a commercial kitchen depending on complexity.
Yes. Once Natural Gas supply is available at your premises, we handle the full LPG to NG conversion — surveying your existing system, converting or replacing burner jets and regulators (LPG and NG operate at different pressures and calorific values), installing NG distribution pipework, and commissioning all equipment on NG.
In most cases, yes — piped Natural Gas is typically more economical per unit of heat energy compared to commercial LPG. The exact saving depends on current pricing in your area and your consumption volume. For high-consumption facilities, the savings can be substantial. Our team can do a rough cost comparison for your site before you commit to a conversion project.
A straightforward commercial kitchen LPG or NG system typically takes 1–3 days of installation work. Larger or more complex systems — multi-floor hotels, industrial facilities, or full fuel conversions — may take 1–2 weeks. We provide a realistic timeline during the design stage so you can plan your operations around it.
Yes. We provide post-installation support, periodic inspection visits, and Annual Maintenance Contracts (AMC) for gas systems we have installed. Regular maintenance of pipelines, regulators, and fittings is important for long-term safety and performance. Contact us to discuss an AMC for your installation.
Every installation includes pressure and leak testing before handover, correctly sized pressure regulators at each stage, isolation valves at all branches and appliance connections, and clearly labelled emergency shutoffs. We also provide a staff walkthrough at commissioning covering safe operation and emergency procedures.
Still have questions?

Our team is happy to walk you through the right solution for your site — no obligation.

Talk to Our Team →