Apply to be a TradeMaster!
Main product image of 387,000 BTU Output Knight XL High Efficiency Boiler (NG)
Magnifying glass
Hover image to zoom

387,000 BTU Output Knight XL High Efficiency Boiler (NG)

Brand:
Lochinvar
SKU:
KBX0400N
Rating:
(0)
Q&A:
(0)
387,000 BTU Output Knight XL High Efficiency Boiler (NG)
Magnifying glass
Hover image to zoom
$13,423.05 each
Backorder
Backorder
Get it Wed, Aug 12 - Mon, Sep 14

Lift Gate

This product weighs 365 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

Product Highlight: BTU Output
387000 Max BTUs
Product Highlight: Fuel Type
Natural Gas
Product Highlight: System Type
Hydronic (Water)
Product Highlight: Mount
Floor
Product Highlight: Depth (Inches)
33-1/2" Depth
Product Highlight: BTU Input
399000 BTUs

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


387,000 BTU Output Knight XL High Efficiency Boiler (NG)

Refined and on-line, the KNIGHT XL remains the dependable workhorse with a new touchscreen control, increased thermal efficiency, 10:1 turndown and longer vent lengths than before.

Product Features
  • Stainless Steel Water Tube Heat Exchanger
  • 7" Touch Screen with Built-In CON·X·US
  • Combustion Air Filter
  • 10:1 Modulation Turndown
Specifications
  • 97% Thermal Efficiency
  • Direct Spark Ignition
  • Low NOx Operation
  • Sealed Combustion
  • Low Gas Pressure Operation
  • ASME-Certified, "H” Stamped
  • 160 psi Working Pressure
  • 50 psi Relief Valve
  • Combustion Analyzer Test Port
  • Fully Welded Design
  • On/Off Switch
  • Adjustable High Limit with Manual Reset
  • Automatic Reset High Limit
  • Flow Switch
  • Flue Temperature Sensor
  • Low Air Pressure Switch
  • Temperature and Pressure Gauge
  • Condensate Trap

Specs

Boiler Type:

High Efficiency

Application:

Heating

Mount:

Floor

Fuel Type:

Natural Gas

Efficiency:

97%

Depth (Inches):

33-1/2"

System Type:

Hydronic (Water)

Features:

Direct Vent

EI/Spark Ignition

Condensing

Vent Size:

4"

Water Connection:

2"

BTU Output:

387000

BTU Input:

399000

Contact

Help Face
CALL US
Question? Call or text 888-757-4774
+
Help Face

Questions?

Speak with a real person who will go out of the way to help!
Call or text 888-757-4774
MondayThursday
8am7:45pm
Friday
9am7:45pm
SaturdaySunday
9am5:45pm

Response by Tue

Need help calculating?
Use Our Calculator
Box

Knight KBX0400N (NG)

Replacement Parts

SKU: KBX0400N

Brand: Lochinvar

Search Parts:
SEARCH PARTS
Product Image of no image
HEAT EXCHANGER ASSEMBLY
100330273
Sorry, we don't currently sell this item. Request This Item
Product Image of no image
DISPLAY ASSEMBLY INTERFACE
100330279
Sorry, we don't currently sell this item. Request This Item
Product Image of no image
SWITCH, AIR PRESSURE
100208381
Sorry, we don't currently sell this item. Request This Item
Product Image of no image
CONDENSATE TRAP ASSEMBLY
100330233
Sorry, we don't currently sell this item. Request This Item
Product Image of no image
HOSE, CONDENSATE TRAP
100330234
Sorry, we don't currently sell this item. Request This Item
Relief Valve 50 Psi, 100208454
100208454
Lochinvar
Product Image of no image
COVER, JUNCTION BOX
100335983
Sorry, we don't currently sell this item. Request This Item
Product Image of no image
COVER, CONTROL
100335985
Sorry, we don't currently sell this item. Request This Item
Product Image of no image
JACKET, TOP
100330328
Sorry, we don't currently sell this item. Request This Item
Product Image of no image
JACKET, LEFT SIDE
100330331
Sorry, we don't currently sell this item. Request This Item
Product Image of no image
JACKET, RIGHT SIDE
100330337
Sorry, we don't currently sell this item. Request This Item
Product Image of no image
JACKET, FRONT
100330335
Sorry, we don't currently sell this item. Request This Item
Help Image
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 Policy
Easy 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