Discovering Cotherm's Product Excellence
A Storied Legacy in Heating Controls
Since 1948, Cotherm has been a trusted name in the plumbing and heating industry.
With over 300 million units installed globally, they’ve built an enduring reputation for reliability and quality

A Comprehensive Product Portfolio
Cotherm offers an extensive range of products designed to optimize thermal regulation:
- Thermostats (Capillary, Single-phase and 3-phase Combistats): These ensure accurate, stable temperature control, often combining regulation and safety in one unit to minimize wiring errors and enhance reliability.
- Electronic Controllers: Versatile, certified platforms tailored for water heaters, electric heaters, and multi-source heat pumps—fully compliant with ecodesign regulations.
- Safety Limiters: Engineered for high reliability, they offer temperature stability and customizable safety options, backed by lab-tested safety designs like patented thermal cut-offs.
- Heating Elements: Crafted using copper, stainless steel, or ceramic materials, these immersion and dry-tech elements are precision-designed for efficiency, safety, and durability.
Every component—from shape to sensing distance—is optimized via rigorous parametric design and testing, reinforcing product effectiveness and consistency.
Innovation Meets Simplicity with the Cotherm P.I.L
At the heart of Cotherm’s modern offering is the P.I.L (Plug-and-Install Learning) device:
- An all-in-one Eco 7 immersion timer + SMART thermostat, it employs adaptive algorithms to anticipate household hot water needs—saving energy, time, and effort.
- Installation? A breeze. Designed for rapid retrofitting on existing cylinders—typically completed in under 5–10 minutes with minimal wiring hassle.
- Energy savings are significant: test data from a TÜV-approved lab confirms 10–15% typical reductions, with potential savings of 15–20% depending on lifestyle choices.
- Over an average year, that equates to around 264 kWh saved, and up to 80 kg less CO₂ emissions—a tangible win for both your wallet and the planet.
- Environmentally conscious at every stage: from using 98% recycled injection-mould waste to fully plastic-free, recyclable packaging.
- Safety isn’t overlooked—the P.I.L includes an automatic anti-Legionella cycle if the cylinder doesn’t reach a safe temperature for 21 days, providing consistent protection.
- Extra convenience: a built-in holiday mode ensures your hot water returns to normal settings when you’re back—so you don’t lift a finger.
Final Thoughts
Cotherm combines decades of expertise with innovative design to deliver a product range that emphasizes efficiency, safety, and simplicity. Whether you’re after robust thermostatic components or environmentally friendly smart controls, Cotherm seems to truly understand both installer and homeowner needs