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 circulation of the boiler from the heating system, making it ideal for medium to high-power systems (from 40 kW). It supports multiple boilers and various heating circuits, such as floor heating, radiators, and hot utility water. The hydraulic balancer ensures independent operation of pumps, eliminates the need for separate flow balancing, and incorporates desilter and air vent functions to enhance system performance and protect the boiler from low-temperature corrosion.

Operational Modes:

  1. When the heat requirement equals the boiler’s output: system is balanced.
  2. If heating demand is less than the boiler’s output: return water from the balancer signals the boiler to reduce power.
  3. If demand exceeds boiler output: increased pump suction signals the boiler to increase power.

Key features of the Low Loss Header SHE 1 1/4":

  • Max flow: 5.7 m³/h
  • Max power: 100 kW
  • Connectors: 4 x 6/4" & 2 x 6/4" 
  • Nominal pressure: 10 bar
  • Max temperature: 110°C
  • Capacity: 3.7 liters

Benefits for investors include:

  • Up to 30% longer boiler service life due to protection from low return water temperatures
  • Increased operational comfort through system desiltering and aeration
  • Up to 30% longer pump service life
  • Faster boiler response
  • Cost savings of up to 50% compared to 3- or 4-way valves

Benefits for installers:

  • No need for complex system regulation
  • Reduced claims caused by improper system operation or air locking

Variants available:

  • SHE (LLH): Power 40-420 kW
  • SHE-OC: Insulated version with PUR foam and leatherette, power 40-115 kW (larger units up to 420 kW can be insulated upon request)
  • SHE-SP: Stainless steel with replaceable air separator, power 25-209 kW

Customer satisfaction is prioritized through reliable, efficient heating system operation.

Low Loss Header PRO by Elterm are professional hydronic system components used in central heating (CH) installations, underfloor heating systems, and domestic hot water (DHW) systems. They ensure proper and stable operation of heating systems and are manufactured by the Polish company Elterm, a well-known producer of heating equipment and hydronic accessories.

What is a low loss header?

A low-loss header is a component that:

  • Separates the boiler circuit from the heating circuits (e.g. radiators, underfloor heating, DHW tank),

  • Allows independent operation of pumps in different circuits without the need to balance their flows,

  • Stabilizes flow rates and pressure in the system,

  • Protects the boiler against too low return temperatures (reduces low-temperature corrosion),

  • Facilitates air venting and dirt/sludge separation in the system.

What does “PRO” mean in Elterm low loss headers?

In Elterm’s product range, “PRO” denotes more advanced versions of SHE-PRO low loss headers, often equipped with additional features or improved insulation (e.g. EPP thermal insulation), and designed to work seamlessly with other system components such as KRE PRO manifolds.

Example models from the PRO series included:

  • SHE - PRO up to 40kW - for heating systems up to approx.40 kW

  • SHE-PRO up to 70 kW – for heating systems up to approx. 70 kW,

    SHE - PRO up to 100kW - for heating systems up to approx 100 kW

  • SHE-PRO up to 156 kW – for larger systems up to approx. 156 kW,

  • SHE-PRO 2K 40kW– a version designed for two heating circuits or pump groups.

  • SHE - PRO 2K up to 70kW - a version designed for two heating circuits or pump groups.

  • SHE - PRO 2K up to 100kW - a version designed for two heating circuits or pump groups.

  • SHE - PRO 2K up to 156kW - a version designed for two heating circuits or pump groups.

Main functions of Elterm PRO low loss headers

✔️ Hydraulic separation – isolates the boiler side from the distribution side, preventing flow interference
✔️ Simplified pump cooperation – multiple pumps can operate without precise hydraulic matching
✔️ Air and sludge separation – improves system cleanliness and efficiency
✔️ Boiler protection – prevents cold return water from entering the boiler, extending its service life
✔️ Thermal insulation – PRO versions are factory insulated (EPP), reducing heat losses and improving efficiency

✨ Why use Elterm PRO low loss headers?

  • They improve the reliability and stability of the entire heating system

  • They simplify design and future expansion of multi-circuit installations

  • They help extend the service life of boilers and pumps by optimizing hydraulic conditions