BTU Meter Manufacturers

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List of BTU Meter Manufacturers

Here i have listed some BTU Meter Manufacturers around the worldwide and if i miss any more companies in this post, please put it in comments


  • E-Mon System-10 BTU Meter

Basic Features

  • Simple Installation and Commissioning – Factory programmed and ready for use upon delivery. All process data and programming functions are accessible via the front

    panel display and keypad.

  • Single-Source Responsibility – One manufacturer is responsible for every aspect of the energy measurement process, ensuring component compatibility and overall

    system accuracy.

  • N.I.S.T. Traceable Calibration with Certifications 

  • Highly Accurate Flow Meters – Insertion turbine and inline turbine flow meters are accurate to within ±0.5% of the rate at the calibrated typical flow rate and within ±2% of

    rate over an extended 50:1 turndown range (0.4 – 20 ft/s).

  • Serial Communications – Optional communications card


  • SYSTEM-10 

  • SYSTEM-20 

  • SYSTEM-40

Basic Features

  • Single-Source Responsibility One manufacturer responsible for the manufacture, compatibility of components, and calibration of the entire BTU measurement system. ONION is committed to providing highly accurate and reliable systems which guarantee successful installations.

  • NIST Traceable Calibration with Certification Complete system-wide calibration for the entire BTU measurement system for each specific application with the certification of calibration.

  • Precision Solid State Temperature Sensors Custom calibrated and matched to an accuracy better than ±0.15° F from 32-200° F.

  • Simple Installation and Commissioning Factory programmed and ready to use upon delivery, all process data and programming functions are accessible via front panel display and keypad.

  • Easy-to-Operate User Interface Menu-driven display and membrane keypad make viewing data easy and simplify field re-programming when necessary.

  • Network Compatible Serial Communications Optional communications card provides complete energy, flow and temperature data through a single network connection. Available with BACnet®, MODBUS®, LonWorks®, Johnson Controls-N2® and Siemens-P1® interface cards.

  • Highly Accurate Flow Meters Each System-10 BTU Meter works with ONICON’s insertion, inline, electromagnetic, clamp-on ultrasonic and vortex flow meters.

  • Installation Hardware Package Thermowells and the associated installation hardware are provided along with installation instructions to ensure error-free installation and accurate system performance.


  • iSOLV BTU Measurement System

Basic Features

  • Complies with OIML R75 and EN1434 standards.

  • Real-time display of supply/return water temperature, instantaneous flow rate, cooling consumption value, heating consumption value, instantaneous power, total flow rate etc.

  • Four different units of measurements available: MJ, GJ, kWh/h, MWh/h.

  • Password protection available.

  • RS485 Communication protocol.

  • Matched pair of 3-wire Temperature sensor PT1000, for higher resolution and better accuracy.

4. adeptfluidyne

  • BTU Meter 6430

Basic Features

  • It uses the most accurate Electromagnetic/Ultrasonic Flowmeter

  • All Flowmeters are factory calibrated to ensure the highest accuracy

  • Matched pair of accurately calibrated Temperature Sensors

  • User-defined flow units for the Flowmeters

  • Displays instantaneous and totalised flow

  • User-defined units for Net heat Computing

  • Non-volatile memory stores data in case of power failure

  • Easy-to-operate keypad. Just 3 keys to select the desired operating mode

  • Password protection for all programming modes

  • Computer interface to the supervisory computer through RS 485 communication port


  • BTU 100L

  • HET 100L

Basic Features

  • Measurement of Thermal Power & Energy consumed

    through measurement of flow, the Temperature difference

    of Inlet & Outlet of the medium

  • Used in Centralized Air Conditioning systems

  • Compact wall mounting design with IP 67 Enclosure

  • Availability of display of Chilled Water flow,

    Power, Temperature etc.

  • Data storage up to 1 year with the hourly storage facility

    with real-time

6. istec-corp

  • Scylar Model 5202S

  • 4400 Series Compact

Basic Features

  • For heating, cooling or combined heating/cooling

  • Measurement accuracy fulfils the requirements according to EN 1434

  • Improved power consumption – longer battery lifetime

  • Approved according to MID and PTB K 7.2 (cooling)

  • Programmable history memory (daily, weekly, monthly)

  • Windows-based software for customizing to user’s specific needs

  • Individual remote reading (AMR) with optional add on modules

  • Optional network communication


  • 380 Series

Basic Features

  • The Series 380 BTU meter is an all-in-one energy usage package for monitoring hydronic heating or cooling systems. This meter accurately measures flow and temperature differential to compute energy and can interface with many existing control systems.

  • The rugged design incorporates an impeller flow sensor and two temperature probes. One temperature probe is conveniently mounted directly in the flow sensor tee. The second is placed on either the supply or the return line, depending on the application. These minimal connections help simplify installation and save time.


  • MULTICAL 302

  • MULTICAL 403

  • MULTICAL 603

  • MULTICAL 803


Basic Features

  • Kamstrup ultrasonic heat meters are produced to MID Approval EN1434 – a stringent European standard that ensures that the accuracy and quality remain constant, so you can be confident that every meter is as good as the last. The ULTRAFLOW® flow sensors use microprocessor technology and ultrasonic measuring techniques.

  • Efficient metering and design

    The flow is measured using bi-directional ultrasound based on the transit time method, with proven long-term stability and accuracy. All circuits for calculating and measuring are collected on a single board, providing a compact and rational design in addition to an exceptionally high level of measuring accuracy and reliability.


  • SonoSelect

  • Sonometer 30

  • Sonosafe

Basic Features

  • Danfoss Sono® compact energy meters offers both primary side and secondary side meters for heating as well as cooling applications. They can be used in single-family houses, apartment buildings and commercial buildings.

  • All meters are high quality, ultrasonic meters for the highest accuracy and longest lifetime values.


  • Fluxus F502

  • Fluxus F601

  • Fluxus G601

  • Fluxus G608

Basic Features

  • FLEXIM’s non-invasive permanent or portable Thermal Energy meters allow for an easy determination of the thermal energy flows within a building.

  • In times of rising energy prices and environmental regulations, the optimization of thermal energy flows is the most crucial issue. From heat delivery between central heating plants to real estate end users or heat transfer flows in industrial processes: controlling and balancing the flow of energy is of utmost importance for cost-conscious users.

  • With temperature measurements at the inlet and at the outlet of a system as well as accurate flow measurement at the outlet, the FLUXUS Thermal Energy meter calculates the thermal energy flows from outside the pipe wall, being virtually maintenance-free.

  • The values can easily be transmitted to a PC for display and analysis. The data obtained can be used for energy flow balancing or it can be transmitted to a process control system.

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2 thoughts on “BTU Meter Manufacturers”

  1. Pingback: What is BTU Meter and how to calculate energy consumption for billing

  2. Win Technical Sales is an energy and flow meter manufacturer and supplier, they offer their own line of ultrasonic meters that are NST certifiable, offer installations and NST traceable calibrations for said meters and others manufacturers as well.

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