ELTERM products are made of high-quality mild steel, manufactured in accordance with the highest testing and certification standards. All products are designed and welded to meet the strictest quality requirements. 

Our factory has over 30 years of experience in the heating industry. Throughout these years, we have developed and invented numerous products that have become widely used. We distribute these solutions across Europe and other continents, ensuring quality and innovation in every application.

Please note: We (Culm Stores Distribution Elterm Ltd) do not offer any products made of so-called "galvanized stainless steel." Our products are made from genuine materials that meet rigorous EU & BS safety and quality standards.

The Low-Loss Header, also known as a Hydraulic Balancer, is designed to separate the boiler’s circulation from the heating system, suitable for medium to high-power systems (25 kW and above, ideal for an average house). It is used in setups with one or more boilers and various heating circuits, such as floor heating, radiators, or hot utility water. The LLH automatically manages flow separation, eliminating the need for manual balancing of pump flows. Its construction includes a desilter and air vent, offering additional benefits of system cleaning and air removal while protecting the boiler from low-temperature corrosion of the return water.

Operational Modes:

1. When the heat requirement equals the boiler’s power, the system operates in balance.
2. If the requirement is less than the boiler’s capacity (e.g., thermostatic valves are closed), some heat returns from the LLH, signaling the boiler to decrease output or switch off.
3. If the requirement exceeds the boiler’s capacity, increased pump suction signals the boiler to produce more heat.

Features of the Low Loss Header SHE 2”:

• Max flow: 7.4 m³/h
• Max power: 156 kW
• Connectors: 4 x 2" male threads
• Nominal pressure: 10 bar
• Max temperature: 110°C
• Capacity: 4 liters (or 1 liter in some configurations)
• Vent and drain valves included

Advantages for investors:

• Up to 30% longer boiler service life through protection from low return water temperatures
• Enhanced operational comfort via system desiltering and aeration
• Up to 30% longer pump service life due to smooth, undisturbed operation
• Faster boiler reactions to changing demands
• Cost savings of up to 50% compared to traditional 3- or 4-way valves

Advantages for installers:

• No need for complex system regulation, thanks to automatic flow management
• Reduced claims caused by air locking or improper operation

Variants Available:

• SHE – LLH: Power range from 40 to 420 kW
• SHE-OC: Insulated with polyprene shell, power from 40 to 156 kW (up to 420 kW can be insulated with ROCKWOOL upon request)

Customer satisfaction benefits from reliable, efficient heating operation with less maintenance and fewer issues.

Distribution Low Loss Header  70kW  - HORIZONTAL/VERTICAL

This low loss header has 6 x 1" tapings  and 2 x 1 1/4" tapings.

Hydraulic Coupling-Collectors SKE

SKE coupling-collectors are available in standard and Condens (DC) versions. The Condens version is equipped with a patented flow director. The Inox director maintains high efficiency of condensing boilers or heat pumps. The Inox director allows for alternating connection of pump groups with a spacing of 125mm. A version for heating circuits DN32 is also available. The standard version (2D+) offers limited possibilities for connecting pump groups. Universal construction (adaptation kit) enables installation within a 360° range. Connection of two, three, or four (4DC) pump groups is possible. Expansion of SKE 2DC+ for an additional heating circuit (expansion kit, only DN25) is possible. SKE 2DC+ are part of ready-made sets with pump groups – Kompania and Kompania PRO. Products are insulated with EPP molds.

Condensing Distribution Low Loss Header  90kW  - HORIZONTAL/VERTICAL

This low loss header has 6 x 1" tapings on 1 side and 2 x 1 1/4" tapings on the opposite side.

Condensing Distribution Low Loss Header  40kW  - HORIZONTAL/VERTICAL

This low loss header has 6 x 1" tapings on 1 side and 2 x 1" tapings on the opposite side.

Condensing Distribution Low Loss Header  55kW  - HORIZONTAL/VERTICAL

This low loss header has 6 x 1" tapings on 1 side and 2 x 1" tapings on the opposite side.

ELTERM products are made of high-quality mild steel, manufactured in accordance with the highest testing and certification standards. All products are designed and welded to meet the strictest quality requirements. 

.Our factory has over 30 years of experience in the heating industry. Throughout these years, we have developed and invented numerous products that have become widely used. We distribute these solutions across Europe and other continents, ensuring quality and innovation in every application.

Please note: We (Culm Stores Distribution Elterm Ltd) do not offer any products made of so-called "galvanized stainless steel." Our products are made from genuine materials that meet rigorous EU & BS safety and quality standards.

This is a modern, cost-effective solution for heating systems using Low Loss Headers (also known as Hydraulic Balancers). These components help optimize the operation of multi-boiler and multi-circuit heating systems by separating boiler circulation from heating circuits, thereby enhancing efficiency and system longevity.

Key points:

• Compatibility: All headers are tested for pressurized systems up to 10 bar.
• Functions: They balance flows automatically and incorporate desilter and air vent functions.
• Operation Modes: The balancer adjusts its operation based on the heat demand relative to the boiler’s output:
  • When heat demand equals boiler output, it maintains a stable flow.
  • If the demand is less, it signals the boiler to decrease power or switch off.
  • If the demand exceeds the boiler’s output, it signals the boiler to increase power.
• Model Example (SHE 1"):
  • Max flow: 1.8 m³/h
  • Max power: 28 kW
  • Temperature tolerance: up to 110°C
  • Pressure: 10 bar
  • Capacity: 1 l.

Advantages for investors:

• Up to 30% longer boiler service life due to protection from low return water temperature
• Increased operational comfort thanks to system desilting and aeration
• Up to 30% longer pump service life due to undisturbed mutual operation
• Quicker boiler response
• Up to 50% cost savings compared to 3- or 4-way valves

Advantages for installers:

• No system regulation needed due to automatic pump operation
• Reduced claims caused by improper system operation or air locking
• Automatic operation simplifies installation and maintenance

Available variants:

• SHE – LLH: Power ranges from 28 to 420 kW
• SHE-OC: Insulated versions (PUR foam + leatherette coating), powers from 28 to 115 kW (models with 225 and 420 kW can be insulated with ROCKWOOL if requested)
• SHE-SP: Balancers with stainless steel replaceable air separators, powers from 25 to 209 kW

Summary: Using Low Loss Headers (Hydraulic Balancers) provides a reliable, efficient, and economical solution for heating systems—contributing to longer system lifespan, improved comfort, and cost savings.

SHE Hydraulic Separators – Headers for Central Heating Systems

A properly designed central heating system should deliver reliable, efficient, and energy-saving performance for many years. One of the key components responsible for achieving these results is a hydraulic separator. This essential element is widely used in both modern and upgraded heating installations, ensuring the stable and efficient operation of the entire system.

SHE hydraulic separators are suitable for heating systems powered by solid fuel boilers, condensing boilers, and heat pumps. In solid fuel boiler installations, they effectively protect the boiler against excessively low return water temperatures, helping to extend the service life of the heating equipment and improve its reliability.

What Is the Purpose of a Hydraulic Separator?

The primary function of a hydraulic separator is to hydraulically separate the heat source circuit from the heating distribution circuit. This allows flow rates and pressure differences between the individual circuits to be balanced, enabling each circuit to operate independently and efficiently.

Hydraulic separators are particularly beneficial in installations where the required flow rate on the heat source side differs from that of the heating system. They are also an excellent solution for underfloor heating systems, where the temperature difference between the supply and return water is relatively small.

Hydraulic separators are commonly used in:

• systems with wall-mounted boilers equipped with integrated circulation pumps,
• compact heating units with a low water volume,
• heating systems featuring multiple heating circuits.

By maintaining the correct water flow rate, a hydraulic separator effectively separates the boiler circuit from the heating circuit, resulting in improved system stability, enhanced operating efficiency, and greater user comfort.

Why Choose SHE Hydraulic Separators from Elterm?

SHE hydraulic separators are premium-quality products designed to ensure efficient operation in a wide variety of central heating systems. Available in six different sizes, they can be easily matched to the requirements of virtually any installation.

Depending on the model, the separators are manufactured from high-grade stainless steel (INOX) or carbon steel protected with a durable powder-coated finish that provides excellent corrosion resistance and long-lasting durability.

All SHE hydraulic separators feature a universal connection spacing compatible with Elterm 2D+ and 3D+ distribution manifolds. Standard equipment includes:

• an automatic air vent,
• a drain valve,
• a robust, durable construction designed for long service life.

Selected models are additionally equipped with a flow guide that reduces the recirculation of hot water directly back to the heat source, improving the overall efficiency of the heating system.

Benefits of Using SHE Hydraulic Separators

Installing a SHE hydraulic separator offers numerous advantages, including:

• balancing flow rates and pressure within the heating system,
• improving the overall efficiency of the installation,
• reducing the risk of air accumulation within the system,
• ensuring smooth operation of multiple heating circuits,
• extending the service life of boilers and circulation pumps,
• providing safe, reliable, and efficient operation of the entire central heating system.

SHE hydraulic separators are a proven solution for professional installers and end users looking for high-quality workmanship, reliable performance, and seamless integration with modern heating systems.

ELTERM products are made of high-quality mild steel, manufactured in accordance with the highest testing and certification standards. All products are designed and welded to meet the strictest quality requirements. 

Our factory has over 30 years of experience in the heating industry. Throughout these years, we have developed and invented numerous products that have become widely used. We distribute these solutions across Europe and other continents, ensuring quality and innovation in every application.

Please note: We (Culm Stores Distribution Elterm Ltd) do not offer any products made of so-called "galvanized stainless steel." Our products are made from genuine materials that meet rigorous EU & BS safety and quality standards.

Condensing Distribution Low Loss Header  100kW  - HORIZONTAL/VERTICAL

This low loss header has 6 x 1" tapings on 1 side and 4 x 1 1/4" tapings on the opposite side.

SKE Distribution Low-Loss Headers (Hydraulic Balancers) – Basic Versions

Function and Application

The SKE distribution low-loss header, also known as a hydraulic balancer, is designed to hydraulically separate the boiler circuit from the heating circuit. It is primarily used in medium- and high-power heating systems (starting from 25 kW and typically from 40 kW upward), which may include:

• One or more boilers (solid fuel, gas condensing, or heat pump-based)

• Multiple heating zones or circuits (e.g. underfloor heating, radiator heating, and domestic hot water (DHW))

In such complex systems, the SKE eliminates the need for manual flow balancing between pumps. It allows each circuit to operate independently and without interference, ensuring optimal pump performance and stable hydraulic conditions.

Key Features

• Hydraulic Separation: Enables independent operation of boiler and heating circuits, preventing mutual pump interference.

• Integrated Desilter and Air Vent: Enhances system reliability by removing sludge and air from the circuit.

• SMART Magnetic Separator: A built-in neodymium magnet captures fine magnetic particles, preventing corrosion and rust caused by circulating debris.

• Boiler Protection: Prevents low return water temperature to solid fuel boilers (avoiding condensation and corrosion).

• Flexible Installation: The unit can be installed in any orientation, adapting to site-specific requirements.

Operating Scenarios

1. Heat Demand = Boiler Output
   The system operates under equilibrium. Boiler output matches the heating circuit demand.

2. Heat Demand < Boiler Output
   When thermostatic valves (e.g. on radiators) begin closing, excess heat circulates back through the hydraulic balancer. This signals the boiler to reduce output or shut down.

3. Heat Demand > Boiler Output
   Increased suction from the heating circuit through the balancer signals the boiler to increase power to meet demand.

Available Models and Applications

Why Choose the SKE Hydraulic Balancer?

• Simplifies multi-circuit system design and commissioning

• Enhances system longevity and efficiency

• Reduces maintenance through built-in magnetic filtration and air removal

• Compatible with modern high-efficiency boilers and heat pumps

• Modular models available for varying system sizes and configurations

Condensing Distribution Low Loss Header  100kW  - HORIZONTAL/VERTICAL

This low loss header has 6 x 1" tapings on 1 side and 4 x 1 1/4" tapings on the opposite side.

SKE Distribution Low-Loss Headers (Hydraulic Balancers) – Basic Versions

Function and Application

The SKE distribution low-loss header, also known as a hydraulic balancer, is designed to hydraulically separate the boiler circuit from the heating circuit. It is primarily used in medium- and high-power heating systems (starting from 25 kW and typically from 40 kW upward), which may include:

• One or more boilers (solid fuel, gas condensing, or heat pump-based)

• Multiple heating zones or circuits (e.g. underfloor heating, radiator heating, and domestic hot water (DHW))

In such complex systems, the SKE eliminates the need for manual flow balancing between pumps. It allows each circuit to operate independently and without interference, ensuring optimal pump performance and stable hydraulic conditions.

Key Features

• Hydraulic Separation: Enables independent operation of boiler and heating circuits, preventing mutual pump interference.

• Integrated Desilter and Air Vent: Enhances system reliability by removing sludge and air from the circuit.

• SMART Magnetic Separator: A built-in neodymium magnet captures fine magnetic particles, preventing corrosion and rust caused by circulating debris.

• Boiler Protection: Prevents low return water temperature to solid fuel boilers (avoiding condensation and corrosion).

• Flexible Installation: The unit can be installed in any orientation, adapting to site-specific requirements.

Operating Scenarios

1. Heat Demand = Boiler Output
   The system operates under equilibrium. Boiler output matches the heating circuit demand.

2. Heat Demand < Boiler Output
   When thermostatic valves (e.g. on radiators) begin closing, excess heat circulates back through the hydraulic balancer. This signals the boiler to reduce output or shut down.

3. Heat Demand > Boiler Output
   Increased suction from the heating circuit through the balancer signals the boiler to increase power to meet demand.

Available Models and Applications

Why Choose the SKE Hydraulic Balancer?

• Simplifies multi-circuit system design and commissioning

• Enhances system longevity and efficiency

• Reduces maintenance through built-in magnetic filtration and air removal

• Compatible with modern high-efficiency boilers and heat pumps

• Modular models available for varying system sizes and configurations

Condensing Distribution Low Loss Header  100kW  - HORIZONTAL/VERTICAL

This low loss header has 6 x 1" tapings on 1 side and 4 x 1 1/4" tapings on the opposite side.

SKE Distribution Low-Loss Headers (Hydraulic Balancers) – Basic Versions

Function and Application

The SKE distribution low-loss header, also known as a hydraulic balancer, is designed to hydraulically separate the boiler circuit from the heating circuit. It is primarily used in medium- and high-power heating systems (starting from 25 kW and typically from 40 kW upward), which may include:

• One or more boilers (solid fuel, gas condensing, or heat pump-based)

• Multiple heating zones or circuits (e.g. underfloor heating, radiator heating, and domestic hot water (DHW))

In such complex systems, the SKE eliminates the need for manual flow balancing between pumps. It allows each circuit to operate independently and without interference, ensuring optimal pump performance and stable hydraulic conditions.

Key Features

• Hydraulic Separation: Enables independent operation of boiler and heating circuits, preventing mutual pump interference.

• Integrated Desilter and Air Vent: Enhances system reliability by removing sludge and air from the circuit.

• SMART Magnetic Separator: A built-in neodymium magnet captures fine magnetic particles, preventing corrosion and rust caused by circulating debris.

• Boiler Protection: Prevents low return water temperature to solid fuel boilers (avoiding condensation and corrosion).

• Flexible Installation: The unit can be installed in any orientation, adapting to site-specific requirements.

Operating Scenarios

1. Heat Demand = Boiler Output
   The system operates under equilibrium. Boiler output matches the heating circuit demand.

2. Heat Demand < Boiler Output
   When thermostatic valves (e.g. on radiators) begin closing, excess heat circulates back through the hydraulic balancer. This signals the boiler to reduce output or shut down.

3. Heat Demand > Boiler Output
   Increased suction from the heating circuit through the balancer signals the boiler to increase power to meet demand.

Available Models and Applications

Why Choose the SKE Hydraulic Balancer?

• Simplifies multi-circuit system design and commissioning

• Enhances system longevity and efficiency

• Reduces maintenance through built-in magnetic filtration and air removal

• Compatible with modern high-efficiency boilers and heat pumps

• Modular models available for varying system sizes and configurations

1" 40kW Coated Low Loss Header + 2 way insulated, connecting manifold with female threaded tapings.

1" 40kW Coated Low Loss Header + 3 way insulated, connecting manifold with female threaded tapings.

Culm Stores Distribution ELTERM Ltd products are made of high-quality mild steel, manufactured in accordance with the highest testing and certification standards. All products are designed and welded to meet the strictest quality requirements. 

.Our factory has over 30 years of experience in the heating industry. Throughout these years, we have developed and invented numerous products that have become widely used. We distribute these solutions across Europe and other continents, ensuring quality and innovation in every application.

Please note: We (Culm Stores Distribution Elterm Ltd) do not offer any products made of so-called "galvanized stainless steel." Our products are made from genuine materials that meet rigorous EU & BS safety and quality standards.

This is a modern, cost-effective solution for heating systems using Low Loss Headers (also known as Hydraulic Balancers). These components help optimize the operation of multi-boiler and multi-circuit heating systems by separating boiler circulation from heating circuits, thereby enhancing efficiency and system longevity.

Key points:

• Compatibility: All headers are tested for pressurized systems up to 10 bar.
• Functions: They balance flows automatically and incorporate desilter and air vent functions.
• Operation Modes: The balancer adjusts its operation based on the heat demand relative to the boiler’s output:
  • When heat demand equals boiler output, it maintains a stable flow.
  • If the demand is less, it signals the boiler to decrease power or switch off.
  • If the demand exceeds the boiler’s output, it signals the boiler to increase power.
• Model Example (SHE 1"):
  • Max flow: 2.3 m³/h
  • Max power: 40 kW
  • Temperature tolerance: up to 110°C
  • Pressure: 10 bar
  • Capacity: 1 liter

Advantages for investors:

• Up to 30% longer boiler service life due to protection from low return water temperature
• Increased operational comfort thanks to system desilting and aeration
• Up to 30% longer pump service life due to undisturbed mutual operation
• Quicker boiler response
• Up to 50% cost savings compared to 3- or 4-way valves

Advantages for installers:

• No system regulation needed due to automatic pump operation
• Reduced claims caused by improper system operation or air locking
• Automatic operation simplifies installation and maintenance

Available variants:

• SHE – LLH: Power ranges from 40 to 420 kW
• SHE-OC: Insulated versions (PUR foam + leatherette coating), powers from 40 to 115 kW (models with 225 and 420 kW can be insulated with ROCKWOOL if requested)
• SHE-SP: Balancers with stainless steel replaceable air separators, powers from 25 to 209 kW

Summary: Using Low Loss Headers (Hydraulic Balancers) provides a reliable, efficient, and economical solution for heating systems—contributing to longer system lifespan, improved comfort, and cost savings.

Condensing Distribution Low Loss Header  100kW  - HORIZONTAL/VERTICAL

This low loss header has 6 x 1" tapings on 1 side and 4 x 1 1/4" tapings on the opposite side.

SKE Distribution Low-Loss Headers (Hydraulic Balancers) – Basic Versions

Function and Application

The SKE distribution low-loss header, also known as a hydraulic balancer, is designed to hydraulically separate the boiler circuit from the heating circuit. It is primarily used in medium- and high-power heating systems (starting from 25 kW and typically from 40 kW upward), which may include:

• One or more boilers (solid fuel, gas condensing, or heat pump-based)

• Multiple heating zones or circuits (e.g. underfloor heating, radiator heating, and domestic hot water (DHW))

In such complex systems, the SKE eliminates the need for manual flow balancing between pumps. It allows each circuit to operate independently and without interference, ensuring optimal pump performance and stable hydraulic conditions.

Key Features

• Hydraulic Separation: Enables independent operation of boiler and heating circuits, preventing mutual pump interference.

• Integrated Desilter and Air Vent: Enhances system reliability by removing sludge and air from the circuit.

• SMART Magnetic Separator: A built-in neodymium magnet captures fine magnetic particles, preventing corrosion and rust caused by circulating debris.

• Boiler Protection: Prevents low return water temperature to solid fuel boilers (avoiding condensation and corrosion).

• Flexible Installation: The unit can be installed in any orientation, adapting to site-specific requirements.

Operating Scenarios

1. Heat Demand = Boiler Output
   The system operates under equilibrium. Boiler output matches the heating circuit demand.

2. Heat Demand < Boiler Output
   When thermostatic valves (e.g. on radiators) begin closing, excess heat circulates back through the hydraulic balancer. This signals the boiler to reduce output or shut down.

3. Heat Demand > Boiler Output
   Increased suction from the heating circuit through the balancer signals the boiler to increase power to meet demand.

Available Models and Applications

Why Choose the SKE Hydraulic Balancer?

• Simplifies multi-circuit system design and commissioning

• Enhances system longevity and efficiency

• Reduces maintenance through built-in magnetic filtration and air removal

• Compatible with modern high-efficiency boilers and heat pumps

• Modular models available for varying system sizes and configurations

1 1/4" 70kW Coated Low Loss Header + 2 way insulated, connecting manifold with female threaded tapings 1 1/4"

1 1/4" 70kW Coated Low Loss Header + 3 way insulated, connecting manifold with female threaded tapings.

Culm Stores Distribution ELTERM Ltd products are made of high-quality mild steel, manufactured in accordance with the highest testing and certification standards. All products are designed and welded to meet the strictest quality requirements. 

Our factory has over 30 years of experience in the heating industry. Throughout these years, we have developed and invented numerous products that have become widely used. We distribute these solutions across Europe and other continents, ensuring quality and innovation in every application.

Please note: We (Culm Stores Distribution Elterm Ltd) do not offer any products made of so-called "galvanized stainless steel." Our products are made from genuine materials that meet rigorous EU & BS safety and quality standards.

The core of the set is the 70kW PRO Low Loss Header (4 x 1 1/4" tapings), paired with a 2-way compact, polyprene insulated manifold.