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Effortless comfort, Maximum Efficiency
SlimFit® Commercial Condensing Gas Boiler
The SlimFit® high efficiency condensing boilers are designed for fast, easy installation in new and existing commercial and institutional settings, including religious, educational and government buildings. The units connect easily on-site — lowering installation costs and ensuring timely project completion.
550 – 2000 MBH (5 Sizes) Natural Gas | Water (Optional LP on Smaller Sizes)
Features
Horizontal Cast Aluminum Section Heat Exchanger
- Used in 40% of global applications, aluminum design heat exchangers possess substantially higher heat transfer ability, resulting in smaller and lighter heating solutions
- Automotive and industrial equipment industries have standardized on the use of aluminum design in response to years of reliable and long service life
The Right Fit for Retrofit
- Time-proven sectional design perfect for cast-iron section boiler upgrades to high efficiency
- Wide, open waterways that are more forgiving of older boiler plant water systems
Ease of Installation & Service
- No rigging required with integrated roller casters and shipping container ramp
- Boiler base capable of disassembly for tighter boiler room access application
- Field-adjusable boiler front or side mount controller
Boiler Room & System Compatability
- “Door-fit” design with left and righ hand orientation to maximize boiler room floor space
- Comprehensive CAT II / CAT IV venting certications
- Variable/primary and primary/secondary compatible
- Low pressure drops and minimum water flow rates boiler cascade redundancy for optimized boiler plant operation and reduced down times
- Building Automation System integration via Modbus to BACnet and Lonworks
Reliable, Long-Life Peace-of-Mind Operation
- Proven UnityTM Controller with thousands of boiler applications across the Evergreen, SlimFit and SVF product families (110-3000 MBH)
- Composite condensate tray
- Non-prorated 10-year heat exchanger warranty
- 2-year parts warranty
Contact your local Weil-McLain Sales Representative to Help Show You the SlimFit ROI Calculator
Technical Specs
| MODEL | INPUT MAXIMUM (MBH) | INPUT MINIMUM (MBH) | GROSS OUTPUT (MBH) | NET (MBH) | VENT MATERIAL | VENT/AIR DIAMETER | VENT/AIR LENGTH | GAS CONNECTION SIZE | MIN/MAX GAS PRESSURE (INCHES W.C.) | SUPPLY / RETURN WATER CONNECTIONS |
|---|---|---|---|---|---|---|---|---|---|---|
| SF550 | 550 | 110 | 516 | 449 | PVC, CPVC, PP, ABS, AL29-4C | 6″ | 100′ | 2″ NPT Male | 3″ – 14″ | 2″ ASME Class 150 |
| SF750 | 750 | 150 | 702 | 1610 | PVC, CPVC, PP, AL29-4C | 6″ or 8″ | 30′, 100′ | 1 and 1/4″ NPT Male | 3.5″ – 14″ | 2″ ASME Class 150 |
| SF1000 | 1,000 | 167 | 958 | 1833 | PVC, CPVC, PP, AL29-4C | 6″ or 8″ | 100’ or 150′ | 2″ NPT Male | 3″ – 14″ | 3″ ASME Class 150 |
| SF1500 | 1500 | 250 | 1437 | 1250 | PVC, CPVC, PP, ABS, AL29-4C | 8″ | 100′ | 2″ NPT Male | 3″ – 14″ | 3″ ASME Class 150 |
| SF2000 | 2000 | 333 | 1906 | 1657 | PVC, CPVC, PP, ABS, AL29-4C | 8″ | 100′ | 2″ NPT Male | 3″ – 14″ | 3″ ASME Class 150 |
Downloads
Product Manuals
SlimFit 550–750 Series 3 Boiler Manual SlimFit 550–750 Series 3 Advanced Manual SlimFit 550–750 Series 3 Users Manual SlimFit 550–750 Venting Bulletin – Flex PP Vent Material Approved SlimFit 550–750 Series 3 Boiler Manual-French SlimFit 550–750 Series 3 Advanced Manual-French SlimFit 550–750 Series 3 Users Manual-French SlimFit 1000–2000 Series 2 Boiler Manual SlimFit 1000–2000 Series 2 Advanced Manual SlimFit 1000–2000 Series 2 Users ManualSales Collateral
High Efficiency Heating Solutions BrochureTechnical Documents
SlimFit 550 Seismic Analysis SlimFit 750 Seismic Analysis SlimFit 1000 Seismic Analysis SlimFit 1500 Seismic Analysis ProtoNode Supplement — Complete Point ListingProduct Drawings
SlimFit 550–750 (DWG) SlimFit 550–750 (PDF) SlimFit 1000 Heat Exchanger Section Only SlimFit 1000 LH (PDF) SlimFit 1000 RH (DWG) SlimFit 1000 LH (DWG) SlimFit 1000 RH (PDF) SlimFit SF1500 Heat Exch. Section Only SlimFit 1500 LH (DWG) SlimFit 1500 LH (PDF) SlimFit 1500 RH (DWG) SlimFit 1500 RH (PDF) SlimFit 2000 Heat Exchanger Section Only SlimFit 2000 LH (DWG) SlimFit 2000 LH (PDF) SlimFit 2000 RH (DWG) SlimFit 2000 RH (PDF)Product Supplements
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