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Underfloor heating circuits and multi-zone hot water systems place more resistance on a pump than a simple recirculation loop, requiring additional head to maintain flow across extended pipe runs and manifold assemblies. The Grundfos UPS 25-80N is designed to meet that requirement, with an 8 m maximum head rating that keeps flow consistent across larger circuits.
On its highest speed setting the pump moves 82.5 L/Min against a maximum head of 8 m, with power scaling from 114 W up to 160 W across its three settings and current reaching 0.7 A at 1 x 240 V. That range allows the same unit to serve a smaller zone at reduced speed or a full underfloor loop at full output.
Construction follows the canned rotor principle used across the UPS N range, with the rotor and bearings lubricated directly by the system water rather than a separate mechanical seal. The stainless steel housing and composite impeller extend the pump's liquid temperature tolerance down to -25°C, useful in plant rooms exposed to cold conditions before start-up.
Internal thermal protection is built into the motor itself, and the enclosure carries an IPX2D rating for contact protection. At 180 mm port-to-port with 1 1/2 inch connections, it shares mounting dimensions with the smaller UPS 25-60N, simplifying upgrades where more head is later needed.
FEATURES
- Three-speed selector provides field adjustment to match pump output to the hydraulic resistance of underfloor manifolds and multi-zone configurations
- Canned rotor design integrates the pump and motor without a mechanical shaft seal
- Internal thermal motor protection safeguards the winding against overload in continuous heating service
- Stainless steel housing with potable water approval and wide temperature tolerance from -25°C to 110°C
- Composite impeller construction offers consistent hydraulic performance in heating and hot water applications
- IPX2D enclosure rating provides protection against dripping water and contact in service environments
- Canned rotor design with self-lubricating bearings supports continuous operation without routine intervention
- 180 mm port-to-port body dimension matches the mounting footprint of the smaller UPS 25-60N
FAQs
General Product FAQs
1. How do I choose the right pump for my setup?
Selecting the correct pump depends on your required flow (L/min), total head (vertical lift + friction loss), and power source. If you're unsure, contact our team and we’ll size the right system for you.
2. Do you offer support with system design or setup?
Yes — we provide expert advice to help you choose, install, and optimise your pump system. Whether it's a simple setup or a custom solution, we’re here to help.
3. Do you offer complete pump solutions or just products?
We don’t just sell pumps — we provide complete solutions. From accessories and control systems to full packaged setups, we can supply everything required to get your system running efficiently.
Shipping & Availability
1. Do you offer Australia-wide shipping?
Yes — we ship across Australia. Bulk or oversized orders may incur additional freight charges otherwise we offer free shipping over $100*
2. How long does delivery take?
Orders are typically shipped within 1–2 business days, with delivery taking approximately 2–7 days depending on your location.
3. What courier or freight companies do you use?
We work with a range of trusted carriers including Australia Post, StarTrack, TNT, and other national freight providers depending on the size and location of your order. This allows us to ensure fast, reliable delivery across Australia, including regional and remote areas.
Warranty & Support
1. Do your pumps come with a warranty?
Yes — all products are backed by manufacturer warranties. Warranty periods vary depending on the brand and product type.
2. What support do you offer after purchase?
We provide ongoing support including:
- Installation advice
- Troubleshooting
- Spare parts supply
- System upgrades
3. What is the warranty process if something goes wrong?
If you experience an issue, simply contact our team with your order details and a description of the problem. We’ll guide you through troubleshooting and, if required, arrange repair, replacement, or manufacturer assessment in line with warranty terms.
Why choose Foundation Pumps?
1. Why choose Foundation Pumps over other suppliers?
We focus on supplying proven, high-quality pump solutions backed by real industry knowledge. Unlike general resellers, we understand how these systems perform in the field and provide honest, practical advice to ensure you get the right solution the first time.
2. Do you offer expert advice before and after purchase?
Yes — we support you at every stage, from selecting the right pump through to installation and ongoing use. Our team is available to assist with sizing, troubleshooting, and system optimisation whenever you need it.
3. Do you stock trusted brands and quality products?
We carefully select and supply pumps from reputable manufacturers known for reliability and performance. Our range includes both industry-leading brands and high-value alternatives that meet Australian standards and conditions.
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