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406,000 BTU Output Knight XL High Efficiency Boiler (NG)
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MANUALS (4)
This item replaces: KBN501, KBN500
Schematic Feature!
Replacement Parts
Lift Gate
–
This product weighs 310 lbs. and may require the use of a lift gate. If you do require a lift gate at your delivery, you'll have the option to add this FREE of charge when you checkout.
Free Shipping This item ships free
Easy Returns No restocking fee for 90 days
Product Highlights
–
Natural Gas
Direct Vent
Hydronic (Water)
Floor
15-1/2" Width
42.5" Height
Description
–
Heating equipment must be installed, commissioned, and serviced by a licensed and qualified professional in accordance with manufacturer instructions, applicable codes, and industry standards. Manufacturers do not accept warranty or technical support requests from homeowners or unlicensed individuals. All warranty and technical inquiries must be initiated by the licensed professional responsible for the installation.
Rebates:
You may be eligible for rebates from your local utility company and state. Search your zip code in the link below for information about rebate programs that apply to you. Lochinvar Rebate Center
Please Note: This product ships as NG as standard and includes an LP Conversion Kit
Lochinvar's Knight XL Boilers Feature:
SMART SYSTEM Digital Operating Control Features:
Product Specifications:
Rebates:
You may be eligible for rebates from your local utility company and state. Search your zip code in the link below for information about rebate programs that apply to you. Lochinvar Rebate Center
Please Note: This product ships as NG as standard and includes an LP Conversion Kit
Lochinvar's Knight XL Boilers Feature:
- Modulating Burner With 5:1 Turndown
- ASME Stainless Steel Heat Exchanger
- Direct-Vent Sealed Combustion
- 50 psi Relief Valve
- Adjustable High Limit With Manual Reset
- Flow Switch
- Temperature & Pressure Gauge
- Direct-Spark Ignition
- Low NOx Operation
- Low Gas Pressure Operation
- Zero Clearances to Combustibles
- Easy Access Terminal Strip
- Natural to LP Conversion Kit
- Inlet & Outlet Temperature Sensors
- Low Water Flow Indication
- Domestic Hot Water Prioritization
- Adjustable Leveling Legs
- Sidewall Vent Terminals
- On/Off Switch
- Contact On Any Failure
- SMART SYSTEM Digital Operating Control
SMART SYSTEM Digital Operating Control Features:
- 2 line, 16 Character LCD Display
- Password Security
- Built In Cascading Sequencer
- Building Management System Control
- 0-10 VDC Input Control
- Outdoor Reset
- Night Setback
- Three Pump Control (System, Boiler & DHW)
- Pump Relay With Freeze Protection
- Product Service Indicator
- Field Connection Versatility
- Optional PC Or Pocket PC Software
Product Specifications:
- Floor Standing
- Gallon Capacity: 4.2
- Heating Surface (Sq.Ft.): 50.8
- Water Connections: 1-1/2"
- Drain: 3/4"
- Max Working Pressure: 160 psi
- Number of Relief Valves: 1
- Relief Valve Size: 3/4"
- Relief Valve Pressure Rating: 50 psi
- Gas Inlet Connection: 1"
- BTU/Hr Input: 500,000
- BTU/Hr Output (High Fire): 466,500
- BTU/Hr Output (Low Fire): 93,300
- Voltage/Heater: 120 V
- Voltage/Control: 24 V
- Total Amps: 1.7 A
- Number of Electrical Connections: 1
- Dimensions (H x W x D): 42-1/2" x 15-1/2" x 31-1/4"
- Vent Size: 4"
- Vent Category: IV
- Vent Material: PVC
- Shipping Weight: 305 lb
Specs
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| Boiler Type: | High Efficiency |
|---|---|
| Mount: | Floor |
| Application: | Heating |
| Fuel Type: | Natural Gas |
| Vent Type: | Direct Vent |
| Efficiency: | 93.3% |
| System Type: | Hydronic (Water) |
| Width (Inches): | 15-1/2" |
| Height (Inches): | 42.5" |
| Features: | Condensing Direct Vent EI/Spark Ignition |
| Vent Size: | 4" |
| Depth (Inches): | 31-1/4" |
| Water Connection: | 1-1/2" |
| Gas Connection: | 1" |
| BTU Input: | 500000 |
| IBR Rating: | 406000 |
| DOE Rating: | 467000 |
Questions?
Speak with a real person who will go out of the way to help!
Call or text 888-757-4774
Monday – Thursday
8am–7:45pm
Friday
9am–7:45pm
Saturday – Sunday
9am–5:45pm
Need help calculating?
Use Our Calculator
406,000 BTU Output Knight XL High Efficiency Boiler (NG)
Replacement Parts
SKU: KBX0500N-M13
Brand: Lochinvar
Search Parts:
SEARCH PARTS
HEAT EXCHANGER ASSEMBLY
100330274
Sorry, we don't currently sell this item. Request This Item
DISPLAY ASSEMBLY INTERFACE
100330279
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CONDENSATE TRAP ASSEMBLY
100330233
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HOSE, CONDENSATE TRAP
100330234
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COVER, JUNCTION BOX
100335983
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COVER, CONTROL
100335985
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JACKET, TOP
100330328
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JACKET, LEFT SIDE
100330331
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JACKET, RIGHT SIDE
100330337
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JACKET, FRONT
100330335
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Need help finding a replacement part?
Fill out the part request form and someone will get back to you shortly.
PART REQUEST FORM
Free Shipping
On orders over $99
We offer flexible shipping and scheduling options, up-to-date delivery estimates, and free ground shipping on any order over $99 to make sure your order gets to you on-time, for less.
Shipping PolicyEasy Returns
Returning items is as simple as 1-2-3
Ordered the wrong product? Item damaged in transit? Our 3-step process makes returning products easy – even up to a year after purchase – with no restocking fees on returns made within 90 days.
Return Policy