
Hot Water Heating Coils
Bespoke high performance hot water heating coils for AHUs, duct heating and space heating applications.
Technical Specifications
Fluid
LPHW / MPHW / HPHW
Flow Temp.
Up to 120°C
Fin Material
Al, AluP, Cu, Cu-ET
Tube Material
Copper
Connections
BSP / PN16 Flanged
Custom-Designed for Air Conditioning & Process Heating
Optimised Performance
Each coil is individually selected using advanced computer software to ensure:
- Maximum thermal efficiency
- Minimal pressure drop
- Precise alignment with your system requirements
High-Quality Construction
Every coil is built using premium materials and precision engineering:
- Seamless drawn copper tubes (EN12735-2 standard)
- Aluminium fins with die-formed, self-spacing collars
- Mechanically expanded tube-to-fin bonding for maximum heat transfer
- Silver-brazed copper return bends and tubular headers
- BSP(M) flow and return connections
- Integrated air vents and drain sockets
- Heavy-gauge galvanised steel casing for strength and durability
- Tube end plates designed with collared holes to accommodate thermal expansion and prevent damage
Rigorous Testing
All coils undergo rigorous pressure testing to ensure safety and durability:
- Pressure tested to a minimum of 17 barG
- Tested using dry compressed air under water
- Optimised performance verified before despatch

Key Advantages
- Custom-engineered — all sizes, connections and row depths built to your layout.
- LPHW compatible — designed for modern low-temperature heating systems.
- Energy efficient — optimised fin pitch and surface area for maximum heat transfer.
- UK manufactured — short lead times with full quality control.
Optional Features
Fin Material — Polyester Coated Aluminium fins are available to give protection in certain aggressive environments. Alternatively, plain copper or tinned copper fins are available.
High Pressure — for positive pressure or high pressure ducted systems, boxed ends should be specified to enclose headers and return bends, and minimise air leakage.
Tube & Fin Options — 1/2" O.D. tube with fin spacing from 4 mm to 2.1 mm. 5/8" O.D. tube with fin spacing from 6 mm to 2.1 mm.
Typical Applications
AHUs
Duct-Mounted Heating
Process Heating
Healthcare
Hospital HVAC



Downloads
Product Catalogue
Full specifications, dimensions and performance data.
Operation & Maintenance Manuals
Installation, commissioning and maintenance instructions.
Standards & Accreditations
All our products meet exceptional standards, achieved by testing and inspecting our coils and products regularly and adhering to strict procedures.
"HC Coils are great to work with, on time, efficient, clean and tidy.
Project References
Commercial Office, London
Product: LPHW coils for AHU
Replaced legacy coils with improved efficiency and reduced pressure drop.
Common Questions — Hot Water Heating Coils
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