Any Home. Any Season. One System.
Upgrade to a high-efficiency heat pump to heat and cool with one system, reduce energy costs, and get up to $7,500 in rebates.
Off-season pricing means the best deals of the year on high-efficiency air conditioners.
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$445.00
Starting at:
Upgrade your home’s heating efficiency with the industry-leading Grundfos UPS Series. This 3-speed, wet-rotor circulator—complete with a custom-matched flange kit—is the “Gold Standard” for hydronic heating, offering unparalleled flexibility to match your system’s exact flow requirements while delivering near-silent operation and extreme reliability.
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A circulator pump is the "heart" of your boiler system. If it’s too small, your radiators stay cold; if it’s too large, you waste energy and hear rushing water in your pipes.
Industry-Leading Reliability: This pump features an Industry-Leading 3-Year Warranty from Grundfos. When installed by 4Most Energy, you also receive our 1-Year Labor Guarantee, ensuring your system stays pressurized and warm all winter long.
| Feature | Technical Data |
| Flow Range | 0 – 17 GPM |
| Head Range | 0 – 19.5 Feet |
| Voltage | 115 V (Standard Residential) |
| Power (HP) | 1/25 HP |
| Max Liquid Temp | 230°F (110°C) |
| Max System Pressure | 145 PSI |
| Body Material | Heavy-Duty Cast Iron (Stainless Steel options available) |
To ensure a perfect match for your mechanical room, please confirm the following:
We provide the correct matching flange kit for your specific home plumbing:
It depends on your system design. Every boiler requires a system pump (the "heart" of the system). Most modern Combi boilers come with a system pump already built-in, while Heat-Only boilers typically require one to be added externally. If your home has multiple heating zones, you may need multiple pumps to handle the hydronic loops along with a controller to manage them. Our experts offer free design consultations via phone to help you determine the exact quantity and size needed for your home.
4Most Energy always suggests replacing existing circulator pumps when installing a new high-efficiency or wall-mounted condensing boiler. Reusing an old, high-friction pump can reduce the efficiency of your new boiler. This will be included as a recommended item in your 4Most Energy quote.
Our technicians use the performance curves (Low, Med, High) to match your system’s "head" (resistance). Setting it too high wastes electricity, while too low causes uneven heating. We set it correctly for you during installation.
Yes, Grundfos UPS pumps are compatible with standard hydronic glycol mixes. If your system requires a Glycol Make-up Package (GMP), let our experts know.
Toronto, Markham, Richmond Hill, Vaughan, Aurora, Newmarket, Scarborough, Brampton, and Mississauga.
Extended Service Area: Stouffville, Oshawa, Barrie, Orangeville, Hamilton, St. Catharines, Guelph, Kitchener.
Off-season pricing means the best deals of the year on high-efficiency air conditioners.
Save Big on Lennox Furnaces — Limited Time!
Get a new high-efficiency Lennox furnace with no payments for up to 6 months. Premium comfort, top-tier performance.
Simple estimates, flexible payments, pro installation, and industry-leading warranties.