Thermax Ltd Q1FY26: Boilers, Hydrogen, and 59x P/E – Heating Up or Burning Out?
1. At a Glance
Thermax Ltd, India’s favorite “boiler-room-to-green-hydrogen” conglomerate, sits at a market cap of ₹39,527 Cr, with a current price of ₹3,317 per share. That’s down nearly 37% in the last year—like a stock version of a poorly insulated geyser leaking heat. The company reported ₹10,354 Cr sales (TTM) and ₹671 Cr PAT, giving it an earnings yield of just 2.6% and a stretched P/E of 59x vs industry median 49x. Debt is tolerable at ₹1,718 Cr (D/E 0.35), promoters control 62%, and ROE is a respectable 13.6%. But here’s the kicker: its EV/EBITDA of 32.7x makes it more expensive than an overpriced Tesla battery. The three-month return is –3%, six-month return –8%. Clearly, the boiler isn’t producing steam for shareholders lately.
2. Introduction
Thermax is like that overachieving engineering kid: first in boiler design, then chillers, then water treatment, then chemical resins, and now even green hydrogen. They don’t just stop at installing stuff—they also enter your house with “we’ll recycle your water, clean your smoke, and sell you resins while we’re at it.”
The company straddles everything energy and environment: from coal boilers to biomass burners, from ion-exchange chemicals to electrolyzers. That’s diversification on steroids. Yet, despite all this diversification, Thermax remains essentially a B2B contractor—projects-heavy, order-book-driven, and forever dancing with margin pressure.
And let’s not forget, they’re in the mid-cap club, competing with giants like Siemens, ABB, and CG Power. Which means every time they announce “new hydrogen partnership,” Twitter bulls go gaga, while the stock price quietly slips like an EPC project deadline.
3. Business Model – WTF Do They Even Do?
Think of Thermax as a mall with four quirky anchor stores:
Industrial Products (40%): Small boilers, heaters, air pollution control, water & waste solutions. Basically the “bread-and-butter” store.
Industrial Infra (47%): EPC contracts for large plants, bio-CNG, FGD (flue gas desulphurisation). Glamorous but low margin—like selling cold drinks at wholesale rates.
Green Solutions (7%): The new-age flex. BOO (build-own-operate) utilities, renewable energy, green hydrogen. Revenue grew 130% FY22–FY24—like a startup within a PSU.
Chemicals (7%): Resins, water treatment, oilfield chemicals. Boring, but steady.
Their strategy: chase big industrial contracts, cross-sell products, and shout “sustainability” loud enough to get ESG investors excited.
Question: Isn’t this just an EPC contractor wearing a green cape?
Commentary: Sales fell QoQ like a failed boiler test, but margins held better, thanks to project completions. PAT improved YoY, but still volatile. Basically, profits come and go with order execution.
5. Valuation Discussion – Fair Value Range
Method 1: P/E Approach
EPS (annualized): ₹51.2
Fair P/E: 35–45x (sector 49x, apply discount for cyclicality)
