Which Climate Zone Mandates Heat Recovery? ASHRAE 90.1 6.5.6.1 Explained

Which Climate Zone Mandates Heat Recovery? ASHRAE 90.1 §6.5.6.1 Explained If you spec HVAC in the U.S., you have almost certainly been asked: “In which climate zones is energy recovery (heat recovery) required by code?” The short answer is that ASHRAE 90.1 does not mandate recovery in every zone — it triggers it above airflow […]

Data Center Waste Heat Recovery: The Complete Engineering Guide (2026)

Data Center Waste Heat Recovery: The Complete Engineering Guide (2026) Data centers are on track to consume ~1,000 TWh of electricity per year by 2030 (IEA), up from roughly 103 GW of installed capacity today heading toward 200 GW. Almost none of that energy disappears: 90–95% of the electricity a data center draws is converted […]

Liquid Cooling & Immersion Server Waste Heat Reuse

Liquid Cooling & Immersion Server Waste Heat Reuse: Turning 45°C Hot Water into District Heat As rack densities climb with AI training and inference, air cooling is hitting its limit. The industry is shifting to direct-to-chip liquid cooling and immersion — and that shift is a gift for liquid cooling waste heat reuse, because it […]

BESS Thermal Management: Heat Recovery and Cell-Temperature Control

BESS Thermal Management: Heat Recovery and Cell-Temperature Control for Battery Storage Battery Energy Storage Systems (BESS) are being deployed as fast as data centers — often right next to them. But a battery is a thermal device: its life, safety and round-trip efficiency are set by temperature. BESS thermal management is therefore both a reliability […]

Data Center Support-Space Heat Recovery

Lorsque les ingénieurs parlent de récupération de chaleur dans les centres de données, la conversation saute presque toujours directement au white space – les salles de serveurs avec leur énorme charge IT concentrée. C'est là que les kilowatts sont les plus élevés, et c'est là que la plupart des projets de récupération commencent. Mais un centre de données moderne est un petit campus, et les bureaux, centres d'exploitation réseau (NOC), laboratoires, ateliers, quais de chargement et salles de pause autour des serveurs sont également ventilés en continu, rejetant de l'air conditionné à l'extérieur à chaque heure.…

VRC vs. VRE : la différence qui détermine le confort de votre bâtiment

Entrez dans n'importe quelle réunion de spécification de ventilation et vous entendrez les lettres HRV et ERV utilisées presque indifféremment. Il ne devrait pas en être ainsi. Un ventilateur de récupération de chaleur (HRV) et un ventilateur de récupération d'énergie (ERV) résolvent le même problème – apporter de l'air extérieur frais tout en gaspillant le moins d'énergie de conditionnement possible –, mais ils gèrent l'humidité très différemment, et cette différence détermine le confort, la maîtrise de l'humidité et même le coût initial dans un climat donné.…

Retrofitting Heat Recovery Ventilation into Older Buildings

Older commercial and institutional buildings were rarely designed with energy recovery in mind. They were built when fuel was cheap and ventilation was treated as a simple exhaust-and-make-up-air problem. Today, with tighter efficiency expectations and higher energy prices, those same buildings leak heat through every cubic metre of ventilated air. Retrofitting heat recovery ventilation (HRV) […]

Where China’s Heat-Recovery Demand Comes From in 2026

China’s recovery-equipment boom is not one market — it is four, pulling different products. Understanding the split helps overseas buyers read a supplier’s catalogue. HVAC & new buildings China’s building-energy rules now require all new urban buildings to meet green-building standards, and large or public buildings are pushing energy-recovery ventilation. In the cold north-east, clean-heating […]

CRH 2026: HVAC Expo Takeaways on Recovery

The 37th China Refrigeration Expo (CRH 2026) ran 8–10 April 2026 at the Beijing Capital International Exhibition & Convention Center. With roughly 115,000 m² of halls, 1,041 exhibitors from 30 countries and more than 80,000 professional visitors, it remains the single best window into China’s HVAC&R supply chain. The official theme — “Digital intelligence shapes cooling […]

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