Building Intelligence with Submetering Solutions

Thermal Meters

Thermal meters are used to measure heat generation or heat recovery and cooling systems. 

QMC utilizes thermal meter systems from leading North American and European meter manufacturers, including GWF and Onicon. All help achieve similar goals including long-term financial stability and profitability, environmental considerations and rate stabilization for customers. Although district energy technology is not new, the understanding of it from a consumer perspective is. Needed now is expertise and transparency to a new customer-facing tactic by utilities. Learn more in our White Paper on thermal energy metering which looks at regulations and best practices for the Canadian marketplace.  QMC is a leader in submetering of all types, and can assist building owners and developers design, install and communicate the benefits of thermal metering. For more information about thermal metering  and QMC’s expertise visit our thermal solutions page.  

QMC’s thermal meter systems are used for key load management or residential heating/cooling applications. We provide stand-alone meters or complete metering systems. QMC will supply the flow meters, temperature sensors, and thermal calculators, along with any necessary connection pieces.

Stand-alone thermal meters

QMC will assist in specifying and supplying the correct thermal meter for integration into your BAS or EMS. We supply all sizes of in-line and insertion meters.

Complete Thermal Submetering Systems

QMC will design and deploy an automated thermal meter system on an M-Bus communications network using GWF Thermal Metering Technology. The meters will comply with the thermal metering standard EN-1434 to ensure all meter reads are accurate and reliable.

We look forward to assisting you with your thermal submetering project.


QMC utilizes the GWF line of thermal (BTU) meters for residential, commercial and institutional applications. Manufactured in Germany, these meters meet the highest international standards for accuracy and reliability, including EN 1434, which will set the standard for thermal metering in Canada over the next few years. The meters communicate and are powered over an M-Bus 2-wire network, which reduces installation costs and improves meter data integrity.

Key Features:

  • German made: quality products provide longer meter life and improved accuracy
  • High Accuracy so utility costs are recovered: GWF Thermal solutions meet MID EN 1434
  • M-Bus communications standard provides absolute meter readings
  • Power-over-M-Bus saves installation costs
  • UltraMaxxV residential meter is compact, including an integrated ultrasonic flow meter, temperature sensor and calculator
  • UltraMaxxV is ideal for installations in the fan coil unit or heat pump
  • Ultrasonic flow meter: no moving parts to get blocked; very accurate
  • CF-51 and CF-55 commercial models can be adapted to any size pipe (both in-line and insertion meters)
  • “Combined Meter” – meter can measure both heating and cooling
  • Extensive programming of all factors done at factory (K factors to be programmed on meter or software)
  • Flexible mounting options – easy to install in fan coil/heat pump factory or retrofit at site

Brochure: GWF_thermal_CF-55-Calculator_EPe20527.pdf

Brochure: CF-51 and CF-55 Combined heat and cooling meter_EPe20528

Brochure: Integral-V_UltraMaXX_EPe20316

QMC utilizes the GWF line of thermal meters.


QMC utilizes the Onicon line of insertion thermal meter products for retrofit applications where system shutdowns are not possible. The System-10 BTU meter system offers good accuracy, easy installation and multiple communications options, including BACnet IP and BACnet MS/TP.

QMC utilizes the Onicon line of insertion thermal meter.

Need a quote? Call 1-877-358-5155

We look forward to assisting you with your metering project. Please call your local QMC representative or our head office at 1-877-358-5155.


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