Stop the Freeze Before It Starts
Protect your heat pump installs with the ESBE VTN100 Anti-Freeze Valve
It only takes one cold snap to cause a call-back. A frozen heat pump or split pipe can undo hours of good installation work, and no one wants that in the middle of winter.
That’s where the ESBE VTN100 Anti-Freeze Valve earns its keep. Designed for air-to-water Monoblock heat pump systems, it automatically drains water from the circuit when temperatures drop to 3 °C, preventing ice from forming inside the unit or pipework. As soon as the temperature rises to 4 °C, the valve closes again, with no manual reset needed.
Why installers choose the VTN100
- Peace of mind in winter – automatic frost protection that works even in a power cut
- No call-backs – protects the plate heat exchanger and pipework from cracking
- Fit and forget – maintenance-free and reliable thanks to ESBE’s precision engineering
- Leak-free design – the unique axial seal prevents sticking or dripping
- Complete drainage – built-in vacuum valve ensures every drop can be released when required
- Easy placement – install on both supply and return lines, as low as possible in the system where frost risk is highest
The VTN100 forms part of ESBE’s mission to make heat pump installations smarter, safer and more sustainable. It’s built to perform when it really counts, so your customers stay warm and your reputation stays solid.
Reliable protection that works when it’s needed most.
Available now from your preferred plumbing merchant.
Contact Essco for product selection and technical advice on 01489 779068 or use our Contact Form.