HVAC Practices, Guidance & Compliances

A technical knowledge base for specifiers, engineers, and building services professionals.

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HVAC Industry Statistics 2026

Building Controls

Chilled-Water Failure Casebook: Four Patterns, First Checks

Water-sideBuilding Controls

Air Handling Unit Coil Selection Guide

Air-sideWater-side

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Chilled-Water Failure Casebook: Four Patterns, First Checks

Water-sideBuilding Controls

Modern BMS Integration: From Traditional DDC to IoT-Enabled Building Controls

Building ControlsIoT for FM

Control Valve Selection and Hydronic Balancing for Commercial HVAC

Water-sideFluid Handling

Sponsors

IAQ3 items

Temtop C1 portable CO2 monitor, 400-5000ppm, for indoor air quality and HVAC diagnostics

Temtop C1 Portable CO2 Monitor 400-5000ppm Indoor Air Quality Sensor

US$77Temtop

Annular VHE150B wall-mounted cold plasma deodorizer for pet shop and clinic IAQ odor control

Pet Shop Odor Control Cold Plasma Deodorizer – Wall Mounted Air Purifier VHE150B

US$623Annular

DecentLab Industrial CO2 Sensor, 10,000ppm IP67 LoRaWAN for outdoor environmental and HVAC monitoring

DecentLab Industrial CO2 Sensor 10,000 ppm IP67 LoRaWAN C-size Battery

US$1,023DecentLab

Air-side3 items

Belimo FSNF24-US fire and smoke actuator, 8Nm, 24V spring-return for HVAC damper safety

Water-side3 items

Belimo LRF230 fail-safe rotary actuator, 4Nm AC open/close spring return for hydronic valve control

Belimo LRF230 Fail-Safe Rotary Actuator 4 Nm AC Open/Close Spring Return IP54

US$395Belimo

Belimo R20xx-S2 2-way ball valve, PN40 bubble-tight shutoff for open/close hydronic HVAC systems

Belimo R20xx-S2 2-Way Ball Valve PN40 Open/Close Bubble-tight Sealing

US$87Belimo

Belimo EV015R2+BAC Energy Valve, 2-way PICCV 15mm 24V BACnet for efficient hydronic HVAC control

Belimo Energy Valve 2-way PICCV 15mm 24V BACnet MOD/ON/OFF EV015R2+BAC

US$1,692Belimo

IoT3 items

DecentLab optical dissolved oxygen sensor, LoRaWAN 1% accuracy for water quality and environmental monitoring

DecentLab Dissolved Oxygen Sensor Optical LoRaWAN 1% Accuracy C Battery

US$2,837DecentLab

EC Stox Modbus gas sensor, explosion-proof ATEX enclosure for industrial HVAC and safety monitoring

EC Stox – Smart Gas Sensor Device Modbus Industrial Explosion Proof Case Ex IIC ATEX

US$562EC Sense

Milesight UG56-4G LoRaWAN gateway, BACnet PoE 4G for industrial HVAC IoT connectivity

Milesight UG56-4G Industrial LoRawan® Gateway BACnet PoE 4G Access Point HVAC

US$472Milesight

HVAC Practices, Guidance & Compliances

Latest Articles

Editor's Picks

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Sponsors

Temtop C1 Portable CO2 Monitor 400-5000ppm Indoor Air Quality Sensor

Pet Shop Odor Control Cold Plasma Deodorizer – Wall Mounted Air Purifier VHE150B

DecentLab Industrial CO2 Sensor 10,000 ppm IP67 LoRaWAN C-size Battery

Belimo Fire & Smoke Actuator 8Nm 0-177°C Spring-return 24V ON/OFF HVAC

Belimo Rotary Actuator for VRU 35 in-lb 4 Nm 24V 2.5s IP54 LMQ24A-VST

Belimo Damper Actuator 22 in-lb 2.5Nm Spring-return 24V ON/OFF Float SPDT