HEATING SYSTEMS
Design, Supply, Installation & Maintenance of All Heating Systems
From Mosam Engineering (Pvt.) Ltd. | Pakistan
Reliable Heating Solutions for Pakistan’s Harshest Winters
While Pakistan is widely associated with extreme summer heat, a significant portion of the country endures severe winter conditions that are equally demanding on buildings and their occupants. Temperatures in Islamabad, Rawalpindi, Peshawar, Quetta, Gilgit-Baltistan, Azad Kashmir, and the northern regions regularly fall below freezing, and even Lahore and Karachi experience nights cold enough to make effective heating a genuine necessity for comfort and productivity.
Heating is not an afterthought in good building design—it is an engineering discipline in its own system, right? An inadequately heated workspace damages staff productivity and health. An incorrectly specified industrial heating system creates process risks and energy waste. A poorly installed gas heating system is a safety hazard. Mosam Engineering (Pvt.) Ltd. brings the same engineering rigor to heating systems that we apply to all our HVAC work—thorough heat loss calculations, correct equipment selection, professional installation, and structured ongoing maintenance.
We design and deliver heating solutions across all sectors and scales—from a single electric heater in a domestic room to a gas-fired district heating system serving an entire industrial campus. Our recommendations are always driven by technical suitability, energy efficiency, and lifecycle cost—never by margin or brand preference.
About Us
Excellence in Every Degree delivering precise, reliable, and high-performance engineering solutions.
Mosam Engineering is Pakistan’s premier HVAC and engineering solutions provider, delivering excellence for over 20 years. Since our establishment in 2007, we’ve built a trusted reputation for quality, innovation, and customer satisfaction across residential, commercial, and industrial sectors.
HVAC
HVAC Installation & Services
Project Design
Project Design & Planning
Engineering Solutions
Interior Engineering Solutions
Contracting
Contracting & Management Services
Our Heating Systems Services
Mosam Engineering provides a complete range of heating systems services across Pakistan—covering every stage from initial design and installation through to ongoing maintenance, emergency repair, and specialist consultancy.
Electric Heating Systems
Panel heaters, infrared radiant heaters, duct heaters, trace heating, and smart controls
Gas Heating Systems
Gas unit heaters, radiant tube heaters, warm air systems, and make-up air heating units
Heat Pumps
Air source, ground source, and VRF heat pump systems for year-round heating and cooling
Boilers
Gas, oil, and electric boiler systems for hydronic heating distribution in all building types
Underfloor Heating
Wet hydronic and electric UFH systems for residential, commercial, and hospitality projects
Industrial Heating
Heavy-duty process heating, ATEX-rated equipment, and waste heat recovery for industrial facilities
Heating Energy Audits & Upgrades
Identifying inefficiencies and implementing cost-saving improvements
Domestic Hot Water (DHW) Systems
Calorifiers, plate heat exchangers, solar thermal, and heat pump DHW
Renewable & Hybrid Heating
Solar thermal, heat pump, and waste heat integration with conventional backup
Electric Heating Systems
Clean, controllable, and installation-ready precise warmth with zero on-site emissions.
Electric heating systems convert electrical energy directly into heat, offering a clean, safe, and highly controllable solution with no requirement for gas supply infrastructure, flue systems, or combustion ventilation. For many applications in Pakistan particularly where gas supply is unreliable, where buildings are newly constructed without gas connections, or where spot heating of specific areas is required—electric heating provides the most practical and flexible solution.
Electric Heating Solutions We Supply and Install
- Electric panel heaters and convector heaters for residential and commercial spaces
- Electric fan heaters and cabinet heaters for rapid warm-up applications
- Electric infrared radiant heaters for warehouses, workshops, and outdoor covered areas
- Electric storage heaters utilising off-peak electricity tariffs
- Electric underfloor heating—wet and dry systems (see Underfloor Heating section)
- Electric duct heaters integrated into AHU and ducted HVAC systems
- Electric trace heating for pipe frost protection and process temperature maintenance
- Electric air curtains for entrance doorways and loading bays
Controls and Energy Management
Modern electric heating systems are far removed from the crude thermostatic controls of the past. Mosam Engineering integrates electric heating installations with programmable smart thermostats, occupancy sensors, time scheduling controls, and BMS interfaces—ensuring heating operates precisely when and where it is needed, eliminating energy waste from heating unoccupied spaces.
For facilities with variable occupancy patterns—offices, schools, mosques, and event spaces—demand-based electric heating control delivers significant reductions in energy consumption without any compromise in comfort when the space is in use.
Every gas heating installation completed by Mosam Engineering is commissioned with a full combustion analysis—verifying CO₂ levels, flue gas temperatures, and carbon monoxide readings—before any system is handed over to the client. We do not consider a gas heating installation complete until it has been proven safe by instrument measurement, not assumption.
Gas Heating Systems
High-capacity, cost-effective heating—engineered for safety and long-term performance.
Gas heating remains one of the most cost-effective and widely used heating solutions in Pakistan, where natural gas supply is available to a significant proportion of commercial and industrial premises in major cities. Gas-fired heating systems deliver high heat output at a lower operating cost than equivalent electric systems, making them the preferred choice for large spaces, high heat demand applications, and facilities where continuous heating is required through the winter months.
However, gas heating systems carry inherent safety responsibilities. Incorrect installation, inadequate combustion air supply, faulty flue design, or poor maintenance can lead to carbon monoxide poisoning, gas leaks, and fire risk. Mosam Engineering’s gas heating installations are carried out exclusively by trained and experienced engineers who follow SNGPL/SSGCL connection requirements, manufacturer installation standards, and international safety codes.
Gas Heating Systems We Design and Install
- Gas-fired wall-mounted and floor-standing unit heaters
- Gas radiant tube heaters for large industrial and commercial spaces
- Gas ducted warm air heating systems
- Gas-fired make-up air heating units for industrial ventilation systems
- Indirect gas-fired air handling units
- Gas boiler systems for hydronic heating distribution
- Modular gas heating systems for phased capacity expansion
Safety, Commissioning, and Compliance
- Gas supply pressure verification and regulator sizing
- Combustion analysis and flue gas testing at commissioning
- Carbon monoxide and gas leak detection system integration
- Annual gas safety inspection and appliance servicing
- Flue integrity testing and visual inspection
- Compliance documentation and gas safety certificates
Heat Pumps
The most energy-efficient heating technology available—extracting free heat from the environment.
Heat pumps represent the most energy-efficient method of providing heating currently available for buildings. Rather than generating heat by burning fuel or converting electricity into heat at 1:1 efficiency, heat pumps use a refrigeration cycle to extract thermal energy from the outdoor air, ground, or a water source and deliver it inside the building—typically producing 3 to 5 units of heat energy for every 1 unit of electrical energy consumed. This Coefficient of Performance (COP) of 3.0 to 5.0 makes heat pumps transformative for both operating costs and carbon footprint.
As energy costs rise and environmental considerations become increasingly important for organizations across Pakistan, heat pumps are transitioning from a niche technology to a mainstream choice for both new construction and retrofit projects.
Heat Pump Technologies We Supply and Install
- Air source heat pumps (ASHP)—heating and cooling from outdoor air
- Ground source heat pumps (GSHP)—stable high efficiency using ground loop collectors
- Water source heat pumps—for buildings with access to lakes, rivers, or borehole water
- Variable refrigerant flow (VRF) heat pump systems—simultaneous heating and cooling
- Heat pump hot water systems for domestic and commercial hot water production
- High-temperature heat pumps for industrial process heating applications
Year-Round Performance Heating and Cooling from One System
A significant advantage of air source and VRF heat pump systems is their ability to reverse operation—providing air conditioning in summer and heating in winter from a single installed system. This eliminates the need for a separate heating and cooling plant, reducing capital expenditure, plant room space, and maintenance complexity. Mosam Engineering designs heat pump systems for year-round operation, ensuring the system is correctly sized and configured for both Pakistan’s summer cooling demands and winter heating requirements.
Heat Pump Design and Engineering
- Heating and cooling load calculations for accurate sizing
- COP and Seasonal COP (SCOP) analysis for energy cost projections
- Refrigerant pipe design, insulation, and pressure testing
- Hydronic distribution system design for water-based heat pump systems
- Defrost cycle management for cold climate air source installations
- BMS integration for optimised scheduling and performance monitoring
Boilers
The proven workhorse of hydronic heating—selected, installed, and maintained for maximum reliability.
Boiler systems produce hot water or steam that is distributed through insulated pipework to radiators, fan coil units, air handling units, underfloor heating circuits, or process heating equipment throughout a building. For large commercial buildings, hospitals, hotels, industrial facilities, and district heating applications, a correctly engineered boiler system provides reliable, high-capacity, and cost-effective heating that serves the entire building from a centralized plant.
Boiler Types We Supply, Install, and Maintain
- Gas-fired condensing boilers—high efficiency exceeding 90% with heat recovery from flue gases
- Non-condensing gas boilers for replacement and retrofit applications
- Oil-fired boilers for locations without natural gas supply
- Electric boilers where gas is unavailable or restricted
- Steam boilers for process heating, sterilisation, and industrial applications
- Modular boiler systems for redundancy and phased capacity
- Combination (combi) boilers for smaller commercial premises
Boiler Plant Design and Engineering
- Heat loss calculations and boiler capacity sizing
- Flue system design—natural draft and forced draught configurations
- Header and manifold design for multi-boiler installations
- Expansion vessel, safety relief valve, and system pressurisation design
- Primary and secondary circuit pipework and pump selection
- Controls and sequencing strategy for multi-boiler efficiency
- Plant room layout drawings in AutoCAD
Boiler Maintenance and Servicing
Boilers require regular professional servicing to operate safely, efficiently, and within warranty terms. Mosam Engineering provides comprehensive boiler maintenance programs covering annual servicing, combustion analysis, heat exchanger cleaning, safety device testing, and water treatment management. Our engineers are trained to service all major boiler brands, including Viessmann, Baxi, Worcester Bosch, De Dietrich, Riello, and Ferroli.
- Annual boiler service and combustion analysis
- Flue gas analysis and efficiency verification
- Safety valve and controls testing
- Heat exchanger and burner inspection and cleaning
- Water treatment and inhibitor checks
- Emergency boiler repair with priority response
Underfloor Heating
Invisible, even, and supremely comfortable—warmth delivered from the ground up.
Underfloor heating (UFH) distributes heat evenly across the entire floor surface, creating a uniform thermal environment that is physiologically superior to conventional radiator or fan-based heating. By heating a large surface area at a low temperature—typically 28°C to 35°C for floor surface temperature, compared to 60°C to 80°C for radiators—underfloor heating systems operate at higher efficiency, cause less air movement and dust circulation, and deliver a level of comfort that conventional heating simply cannot match.
In Pakistan, underfloor heating is increasingly specified for high-end residential properties, boutique hotels, hospital wards, and commercial showrooms—wherever occupant comfort and design aesthetics are equally important.
Underfloor Heating Systems We Install
- Wet (hydronic) underfloor heating—warm water circulated through cross-linked polyethylene (PEX) pipes embedded in the floor screed
- Electric underfloor heating—heating cables or mats beneath floor finishes
- Overlay systems for retrofit installation without removing existing floor construction
- Suspended timber floor underfloor heating systems
- Zoned underfloor heating with individual room thermostats and manifold control
Design and Installation Process
- Heat loss calculations for each zone to determine pipe spacing and flow rates
- Manifold sizing and location planning
- Pipe layout design—spiral or serpentine patterns optimised for each room shape
- Floor construction coordination—screed depth, insulation layer, and floor finish compatibility
- Pressure testing of all pipework before screed is poured
- System filling, flushing, and balancing at commissioning
- Thermostat installation and zone controls programming
Mosam Engineering works closely with main contractors, interior designers, and clients to integrate underfloor heating into the construction program at the correct stage. We provide full design documentation and pressure test certificates and offer ongoing maintenance and system health checks to ensure long-term performance.
Industrial Heating
Heavy-duty, process-critical heating engineered for Pakistan’s most demanding industrial environments.
Industrial heating is a fundamentally different discipline from commercial building heating. Production processes, material handling, worker safety in large open spaces, explosion risk management, process temperature control, and the sheer scale of heat demand in industrial facilities all require engineering solutions that go far beyond a domestic boiler or a wall-mounted unit heater. Mosam Engineering has the technical expertise and site experience to engineer industrial heating systems that meet process requirements, comply with occupational health and safety standards, and deliver long-term reliability in demanding operating environments.
Industries We Serve
- Textile and garment manufacturing facilities
- Food and beverage processing plants
- Pharmaceutical manufacturing and GMP facilities
- Petrochemical, oil and gas refineries
- Cement, steel, and heavy manufacturing plants
- Cold storage—freeze protection and defrost heating
- Agricultural facilities and controlled environment growing
- Power generation and utility facilities
Industrial Heating Solutions We Provide
- Large-capacity gas-fired unit heaters and radiant tube heaters for factory spaces
- Indirect-fired make-up air heating units for ventilated industrial buildings
- Steam and high-temperature hot water boiler systems for process heating
- Electric infrared radiant heating for spot heating of workstations and loading areas
- Waste heat recovery systems—capturing process exhaust heat for space or water heating
- Electric trace heating for pipe and vessel frost protection
- ATEX-rated heating equipment for hazardous area classifications (Zone 1, Zone 2)
- Thermal oil heating systems for high-temperature industrial processes
Industrial Heating Engineering Scope
- Process heat load analysis and system capacity calculations
- Equipment specification and procurement from internationally certified manufacturers
- Full installation including structural, mechanical, and electrical scope
- Integration with process control systems and safety instrumented systems (SIS)
- Hazardous area compliance documentation and ATEX certification verification
- Commissioning, performance verification, and operator training
- Planned preventive maintenance programmes and emergency repair support
When heating is critical to your production process—not just occupant comfort—the consequences of system failure are measured in lost output, damaged product, and production downtime. Mosam Engineering designs industrial heating systems with appropriate redundancy, incorporates alarm and monitoring systems, and provides rapid-response maintenance support to ensure your facility stays operational through every winter.
Additional Heating Services
Heating System Energy Audits and Efficiency Upgrades
Older heating systems—particularly aging boiler plants, oversized gas heaters, and uncontrolled electric heating—are frequently the largest single source of energy waste in commercial and industrial buildings. Mosam Engineering conducts detailed heating energy audits that measure actual system performance against theoretical design, identify inefficiencies, and develop a prioritized upgrade plan with projected return on investment. Common interventions include boiler replacement with high-efficiency condensing units, addition of weather compensation controls, insulation of distribution pipework, and integration of heat pump pre-heating to reduce gas consumption.
Domestic Hot Water (DHW) Systems
Heating for domestic hot water supply in hotels, hospitals, residential buildings, and sports facilities is a significant energy consumer that is often poorly optimized. Mosam Engineering designs and installs centralized DHW systems, including calorifiers, plate heat exchangers, point-of-use electric water heaters, solar thermal preheating, and heat pump DHW systems—all sized for actual peak demand and designed to minimize legionella risk through correct temperature management and system configuration.
Renewable and Hybrid Heating Integration
Pakistan’s improving solar resource and growing focus on energy cost reduction are driving increasing interest in renewable heating integration. Mosam Engineering evaluates and implements hybrid heating systems that combine solar thermal collectors, heat pumps, or waste heat recovery with conventional gas or electric backup—delivering substantial reductions in energy bills and carbon emissions without compromising heating reliability.
Certified
Certifications & Registrations
Recognized and certified by leading industry standards
ISO Certified
Quality Assured
Licensed Contractor
Industry Approved
How Our Heating Process Works
Every heating project at Mosam Engineering follows a clear and structured process—from initial assessment to certified handover and ongoing support.
- Site Assessment—Our engineers visit your site, assess the building fabric, existing heating infrastructure, and fuel supply conditions, and gather all technical requirements to determine the most appropriate heating solution.
- Custom Design & Proposal—We prepare a complete heating system design, including heat loss calculations, equipment specifications, pipework or wiring schematics, and a detailed, transparent quotation with no hidden costs.
- Installation & Execution—Our qualified heating engineers and technicians carry out all work to manufacturer standards, SNGPL/SSGCL requirements where applicable, and international codes—with minimal disruption to your building or production operations.
- Testing & Commissioning—Every heating system is fully tested, balanced, and commissioned before handover. Gas systems receive a full combustion analysis. Boiler systems are pressure tested. UFH circuits are flow-balanced and verified against design.
- Handover & Documentation—We issue complete documentation, including as-built drawings, O&M manuals, gas safety certificates, commissioning reports, pressure test records, and warranty certificates—with a full client walkthrough and operator training.
- Ongoing Maintenance & Support—Structured annual maintenance contracts, gas safety inspections, boiler servicing, and 24/7 emergency support keep your heating systems safe, efficient, and operational through every winter.
Why Clients Across Pakistan Choose Mosam Engineering
- Certified Engineering Team: Qualified mechanical engineers and heating technicians with multi-fuel expertise across all project sizes
- Safety-First Approach: Every gas and combustion heating system is commissioned with instrument-verified safety checks before handover
- Precise Heat Loss Calculations: We size every system using verified engineering calculations—never rules of thumb or guesswork
- Brand-Independent Advice: Equipment recommendations are based on technical performance, efficiency ratings, and lifecycle cost
- Full Project Delivery: Design, supply, installation, commissioning, and aftercare—all delivered by our in-house teams
- Documented Handover: As-built drawings, O&M manuals, gas safety certificates, commissioning reports, and warranty documentation
- Nationwide Coverage: Active across Karachi, Lahore, Islamabad, Rawalpindi, Peshawar, Quetta, Faisalabad, Multan, and beyond
• AMC and Emergency Support: Structured annual maintenance contracts with priority call-out for heating systems in critical facilities
Areas We Serve Across Pakistan
Mosam Engineering provides heating systems services across all major cities and regions throughout Pakistan—including the cold northern regions where heating is an essential year-round requirement.
- Islamabad & Rawalpindi—Commercial, institutional, and residential heating installations in Pakistan’s most heating-intensive major cities
- Peshawar—Industrial, commercial, and residential heating systems for KPK’s demanding winter climate
- Quetta—Industrial and commercial heating solutions for Balochistan’s extreme winter conditions
- Lahore—Corporate offices, hospitals, hotels, manufacturing facilities, and residential heating projects
- Karachi—Commercial, industrial, and process heating, including DHW systems and industrial trace heating
- Faisalabad—Textile and manufacturing sector heating, steam systems, and industrial process heating
- Multan—Commercial and residential heating services
- Northern Regions—Gilgit-Baltistan, Azad Kashmir, Abbottabad, and remote site heating installations where robust systems are critical
• Nationwide—Industrial zones, infrastructure projects, and remote site heating installations across Pakistan
Client Testimonials Our Customers
Mosam Engineering is a trusted heating systems specialist in Pakistan—delivering outstanding results for clients across every sector and every region.
Naveed Butt
Plant Manager, Textile Manufacturing, Faisalabad
“Mosam Engineering designed and installed a complete gas-fired warm air heating system across our 12,000-square-meter textile factory in Faisalabad. The system was precisely sized for our space, installed during a scheduled production shutdown, and has been running faultlessly through two winters. Their engineering team understood our production environment from day one.”
Asif Rehman
General Manager, Boutique Hotel, Islamabad
“We engaged Mosam Engineering to replace our aging boiler plant at our Islamabad hotel with high-efficiency condensing boilers. Their engineers completed the full design, procurement, and installation with zero disruption to hotel operations. Our gas consumption dropped by over 30% in the first heating season.”
Mrs. Sadia Khan
Residential Client, Rawalpindi
“Mosam installed a hydronic underfloor heating system throughout our residential villa in Rawalpindi. The design and installation were meticulous—every zone was balanced correctly, all pressure tests were completed before the screed was poured, and the system has delivered exceptional comfort through the entire winter. Outstanding professionalism.”
Tariq Javed
Facilities Manager, Pharmaceutical Manufacturing, Lahore
“We have an Annual Maintenance Contract with Mosam Engineering for all heating systems across our pharmaceutical manufacturing facility in Lahore. Their engineers carry out gas safety inspections, boiler servicing, and system health checks on schedule every year—with detailed reports and a clear list of any remedial actions. Completely reliable service.”
Speak to Our Heating Engineers. Today
Whether you are planning a new heating system for a construction project, replacing an aging boiler plant, upgrading an industrial heating installation, or simply needing a professional annual service, Mosam Engineering has the engineering expertise and the site experience to deliver the right solution.
Contact our team to arrange a free site assessment and technical consultation. We will evaluate your heating requirements, review your existing systems where applicable, and provide a detailed, no-obligation proposal—with honest advice, accurate calculations, and realistic timelines.
Contact us today to speak with one of our HVAC engineers. We serve clients across Karachi, Lahore, Islamabad, Rawalpindi, Peshawar, Faisalabad, Multan, and all major cities and industrial zones throughout Pakistan.
Frequently Asked Questions
What heating systems services does Mosam Engineering provide?
Mosam Engineering provides a complete range of heating systems services in Pakistan—including electric heating, gas heating, heat pumps, boilers, underfloor heating, and industrial heating. We also provide heating energy audits, domestic hot water system design, and renewable and hybrid heating integration. We serve residential, commercial, and industrial clients across all major cities and regions throughout Pakistan.
Do you install gas heating systems and issue gas safety certificates?
Yes. Mosam Engineering installs gas heating systems in full compliance with SNGPL/SSGCL connection requirements, manufacturer installation standards, and international safety codes. Every gas heating installation is commissioned with a full combustion analysis—verifying CO₂ levels, flue gas temperatures, and carbon monoxide readings—and is issued with a gas safety certificate before handover. We also provide annual gas safety inspections and appliance servicing.
What is a heat pump, and is it suitable for Pakistan’s climate?
A heat pump uses a refrigeration cycle to extract thermal energy from the outdoor air or ground and deliver it as heat inside the building—producing 3 to 5 units of heat for every 1 unit of electricity consumed. Modern air source heat pumps operate efficiently down to −15°C outdoor temperature, making them highly suitable for Pakistan’s winter conditions in most regions. As a reversible system, a heat pump also provides air conditioning in summer—eliminating the need for separate heating and cooling plants.
Do you design and install underfloor heating systems?
Yes. Mosam Engineering designs and installs both wet (hydronic) and electric underfloor heating systems for residential, commercial, and hospitality projects across Pakistan. Our installations include full heat loss calculations for each zone, pressure testing before screed is poured, manifold balancing at commissioning, and complete design documentation and test certificates at handover.
Can you service and maintain our existing boiler system?
Yes. We provide comprehensive boiler maintenance services, including annual servicing, combustion analysis, flue gas efficiency verification, heat exchanger cleaning, safety device testing, and water treatment management. We service all major boiler brands, including Viessmann, Baxi, Worcester Bosch, De Dietrich, Riello, and Ferroli. We also offer structured Annual Maintenance Contracts with priority emergency response.
Do you provide heating solutions for industrial and hazardous area environments?
Yes. Mosam Engineering has specialist capability in industrial heating—including ATEX-rated equipment for hazardous area Zones 1 and 2, process heating systems, steam boiler installations, industrial radiant tube heaters, waste heat recovery, and electric trace heating for freeze protection. All industrial heating work is documented with full engineering calculations, compliance certificates, and commissioning records.
How do I get a quote for heating system services in Pakistan?
Simply contact our team through our website or call our office directly. Our engineers will arrange a site visit, assess your heating requirements, and provide a detailed and transparent quotation with a clearly defined scope of work—at no obligation.
Contact Us
Get Started Today
Ready to experience Pakistan’s best HVAC and engineering services? Contact us for a free consultation and quote.
24/7 Emergency Service
Available anytime, anywhere in Pakistan
Average response time: 2 hours
Service Areas
- Lahore
- Islamabad
- Multan
- Gujranwala
- Karachi
- Faisalabad
- Rawalpindi
- Peshawar
Head Office Information
Phone
- Tel: +92 51 610 1862
- Cell: +92 321 5000 174
- WhatsApp: +92 0300 8506837
- awan@mosameng.com
- ashraq313@gmail.com
Address
Mosam Engineering, D-13, Iqbal Boulevard,
DHA Phase-2, Islamaba
Business Hours
- Mon - Sat: 8:00 AM - 6:00 PM
- Sunday: 10:00 AM - 4:00 PM
