Home › Bruntab Energy Energy Meter (BTU Meter) Bruntab Energy Meter; Accurate Measurement of Heating Energy Consumption per Unit In buildings with central boiler systems, Bruntab installs energy meters (BTU meters) at each unit's inlet to accurately measure heating and hot water consumption and issue separate bills. The Necessity of Using an Energy Meter (BTU Meter) in Buildings with Central Boilers In many buildings, a central boiler system is used for heating. The central boiler system is a safe and reliable system with high comfort. The only drawback of this system is the lack of clarity regarding the heating energy consumption of each unit for winter heating and hot water consumption throughout the year.To address this issue, equipment from Bruntab can be used to install a device called an energy meter (BTU meter), which calculates the heating energy consumption of each unit by measuring the supply and return temperatures and the amount of water passing through the unit. In this way, the consumption of each unit is determined, and along with the separation of boiler gas, a sub-bill for gas can also be issued. The result of using this system has led to a change in consumption behavior and a reduction of 15 to 43 percent in gas consumption.Choosing the type of heating system for a building is an important concern for builders. Although the central heating system has many advantages, many builders prefer package systems. In summary, combining a central boiler with Bruntab's separation system can provide greater comfort, family health safety from the risk of gas poisoning and gas explosion, and lower maintenance costs.It is important to know that the history of consumption separation in Europe and America goes back more than a hundred years. In Europe, the use of this technology has been mandatory for 32 years, and in countries like Turkey and China, the use of these systems has been mandatory for 10 years. Bruntab electricity metering and data logger equipment installed in an electrical panel Bruntab energy meters installed to measure each unit's independent consumption Your browser does not support HTML5 video. Bruntab Water and Energy Consumption Submetering at the 96-Unit Kamila Project in Punak, Tehran Your browser does not support HTML5 video. Bruntab Water and Energy Consumption Submetering in an 18-Unit Building in Saadat Abad, Tehran Bruntab Energy Meter; Accurate Measurement of Heating Energy Consumption for Each Unit Bruntab provides equipment for measuring the gas consumption of each unit. This equipment includes the energy meter, a central reading device, and advanced online software.The energy meter (BTU meter) is installed after the supply and return valves of hot water, considering various models of heating systems such as fan coils, radiators, underfloor heating, and bathroom towel warmers. The energy meter has two temperature sensors, a flow meter, and an electronic board for calculating the received data. Two temperature sensors are used to measure the temperature of the incoming hot water to the unit and the temperature of the outgoing hot water from the unit, and a flow meter is used to accurately measure the amount of circulating water passing through the unit each hour.The central reading device collects all information related to the energy meters, such as temperature, water flow, kilowatts consumed, etc., through wired and wireless protocols such as Mbus, Zigbee, RS485, Pulse output, and Wmbus. The collected information is then sent via the internet, SIM card, or modem to Bruntab's online software.Through Bruntab's specialized software, the total heating energy consumed by each unit during the main building gas bill period is calculated, and a separate bill is issued in rials, indicating the consumption in kilowatt-hours, for each unit in the software's billing page. Advantages of Bruntab Energy Meter (BTU Meter) Determining the exact share of each unit from the heating energy consumed by the boiler 15 to 43 percent reduction in gas consumption due to changes in consumer behavior Resolving disputes among residents due to the determination of the actual share of each unit Ability to determine the daily and hourly consumption of each subscriber Return on equipment costs from energy consumption reduction Possibility of optimizing boiler equipment with accurate temperature and flow information Related questions Energy meter and central boiler gas submetering FAQ The most important questions are ordered around evaluation, installation, billing, and operation. How does an energy meter (BTU meter) calculate each unit's actual consumption? Two sensors measure supply and return water temperatures while a flow meter records the volume of circulating water. The device uses the temperature difference and flow to calculate the heating or cooling energy actually consumed by each unit. How are central boiler gas and heating or cooling costs divided fairly? The fairest method is to calculate each unit's share from the actual consumption recorded by its energy meter. Costs are therefore allocated by measured energy rather than floor area, occupancy, or a fixed coefficient. Can energy meters be installed in an existing building? Yes. If each unit's heating or cooling supply and return pipes are accessible and there is enough room for the flow meter and sensors, the system can usually be installed without major demolition. A technical survey confirms the exact requirements. Does the Bruntab platform issue a separate monetary bill for each unit? Yes. Bruntab's software calculates the consumption recorded by each energy meter during the billing period and provides a separate downloadable monetary bill for every unit. What advantages does a central boiler with energy meters have over individual boilers? It retains the efficiency, safety, and centralized management of a central plant while solving unfair cost allocation. It also reduces in-unit equipment, maintenance costs, and risks associated with separate combustion appliances. What does Building Regulation 19 require for measuring and allocating energy use? The latest revision emphasizes measurement, monitoring, and consumption management. In buildings with central systems such as boiler plants and chillers, suitable equipment should make each unit's energy use measurable and manageable. View all frequently asked questions →