The generative AI boom has created demand for microchips and GPUs like we’ve never seen before. There’s an ongoing arms race between big tech companies to build out the biggest data centers to power their new gen AI tech.

But there’s a secondary effect of the data center buildouts. Racks of GPUs run incredibly hot. We’re talking 50-100 kilowatts per rack. Legacy air-cooling has reached the limits of physics, and new solutions are needed.

That’s where Trane Technologies comes in. They’ve become the go-to solution in the industry for data center cooling technology. In doing so, they’ve transformed from a boring industrial into a tech-adjacent services supplier.

Let’s break down Trane and see what’s in store.

Traditional, legacy cooling systems relied on air as the cooling fluid. But as GPUs have become more densely packed, and consume more power, air simply can’t remove enough heat from the servers. The racks would literally melt.

Trane’s solution is liquid cooling. They use what’s called direct-to-chip, where the liquid flows directly through designated areas on the microchip. This method is much more effective and efficient at removing heat from the chips, and therefore the servers.

The cooling technology is tightly integrated with software (not just a manufactured standalone add-on) and backed by Trane’s considerable expertise in the field. This value-add makes Trane more than just a supplier - customers depend on their services in addition to their technology.

Think of Trane not as an HVAC company, but a highly sophisticated thermal management service. As heat becomes the biggest bottleneck in continuing to build out data centers at scale, Trane’s expertise becomes more and more valuable.

Trane’s is riding the AI wave. As every company races to build out data centers, they need Trane’s technology and services. Demand has exploded.

As long as AI expansion continues, and data centers are needed to power the latest software, operators will continue to rely on Trane. On a long timeline, we might be at the early stages of Trane’s dominance in cooling tech.

One of Trane’s strongest selling points is that they provide the end-to-end ecosystem solution: the chillers, the modular plants, the liquid-to-chip tech, and the service army. Customers can “set and forget”, knowing Trane will handle all things cooling.

Their key competitors - Carrier Global (CARR), Johnson Controls (JCI), and Lennox (LII) - are dealing with execution problems. JCI has had cyberattacks and outages, which can be a dealbreaker for data center operators who require 99.999% uptime. CARR has been going through massive acquisitions and divestitures, preventing them from fully focusing on improving their product and services.

Meanwhile, Trane has been hyper-focused on commercial HVAC in the Americas, where the majority of AI data centers are being built.

Extremely positive. They’re consistently using terms like “exceptional”, “record”, and “extremely robust” to describe their outlook.

Management has a track record of not exaggerating. They even address other pillars of their business with a cooler tone (for example, talking about residential HVAC future outlook). So their bullishness on the data center revenue is noteworthy.

The $7.8 billion backlog is also important. It shows that future revenue is going to be predictable and strong. That helps management be so positive on their outlook for the next 1-3 years.

Trane is an absolute machine. Their 2025 full-year free-cash-flow was $2.8 billion, which translates to a 98% conversion of net earnings. In other words, they make a lot of money, and they do it very efficiently. Their margins are incredibly healthy.

They have a ton of cash on hand with very little debt - their balance sheet is pristine. The market has rewarded Trane’s performance with an 18% increase in share price over the last 12 months.

That run-up in share price is a double edged sword, because Trane is an expensive buy. Their PE is approximately 32x (compared to ~16x for other industrials), and their PEG is ~2.2x (a PEG over 1 generally means a company is overvalued).

A rough discounted cash flow analysis, assuming a very bullish 10% FCF CAGR (considering management is only predicting 6-7%), gives an implied fair value of $350 per share. Trane is currently at ~$420 a share.

As an investor, you’d need Trane to seriously outperform projections to earn a healthy return. Or you’d need to believe that they’re a tech company instead of an industrial (which would change the comparative baseline for PE and the DCF).

Pros:

Cons:

If you’re a strict value investor, you’re not getting a deal on Trane. But if you want to own a wonderful business, Trane has all the right ingredients.