Lochinvar Knight Boiler
93% Efficiency
The KNIGHT’s high-tech design and high-efficiency
performance make it the smartest way to heat your home.
KBN399
399,900 Btu/hr Input
367,908 Btu/hr Outpout
Vent Sive 4in
Product Description
The KNIGHT’s burner and combustion
system features the industry’s most
advanced modulation for unsurpassed
comfort. Ordinary boilers
turn on at full power and run
for a few minutes, then
shut completely off –
repeating this many
times throughout
the day. In contrast,
the KNIGHT boiler
will modulate from
20% to maximum
input in steady
increments so that
you always get the
comfort level you
desire. It’s like having
the efficiency advantage
of multiple boilers in one
compact, space-saving
unit. The burner/combustion
system also provides
environmentally friendly
operation (either natural
gas or LP), with air quality
emissions so low that they exceed the
toughest environmental standards.
SMART SYSTEM:™
Comfort Control
At Your Fingertips
The KNIGHT’s unique SMART SYSTEM™
Control includes an energy-saving
setback function that lets you
custom-tailor the boiler’s
performance to your
comfort needs. It also
features a 2-line LCD
display that alerts
you when servicing
is required. And
as the outside
t e m p e r a t u r e
changes, the automatic
energy monitor
adjusts the
KNIGHT’s output
for maximum
comfort
and energy
savings.
Standard Equipment
- ASME Pressure Relief Valve
- Automatic Reset High Limit
- Contact on Any Failure
- Inlet And Outlet Temperature Sensors
- LP Gas Conversion Kit
- Outdoor Reset
- Pump Relay w/ Freeze Protection
- System Sensor
Features
- 90.3% AFUE Efficiency
- Modulating Burner with 5:1 Turn down
- ENERGYSTAR® Qualified
- ASME Stainless Steel Heat Exchanger
- Direct Vent Sealed Combustion
- PVC Venting up to 100 Feet
- 50 psi Relief Valve
- Automatic Reset High Limit
- Direct Spark Ignition
- Low NOx Operation
- Low Gas Pressure Operation
- Zero Clearance to Combustibles
- Easy Access Terminal Strip
- Natural to LP Gas Conversion Kit
- Inlet& Outlet Temperature Sensors
- Pump Relay w/ Freeze Protection
- Low Water Flow Indication
- Adjustable Leveling Legs
- Sidewall Vent Terminals
- On/Off Switch
- 12 Year Limited Warranty (See Warranty for Details)
Equipment you normally pay extra for
Included with the Knight
- Digital Operating Control
- 2-Line, 16-Character LCD Display
- Internal Cascading Sequencer
- Password Security
- Product Service Indicator
- Outdoor Reset
- Domestic Hot Water Prioritization w/Pump Control
- 0–10 Vdc Input Control
- Contacts on Any Failure
Click on the links below for more information:
The following links require Adobe Acrobat.
To download the latest version, click here
Click Here for Installation & Operation Manual
Click Here for PC Software Guide
Click Here for Pocket PC Guide
Click Here for Service Information
Click Here for Consumer Literature
Click Here for Contractor Literature
Click Here for Parts List
Click Here for Submittal Data
Click Here for Product Summary
Click Here for Training
Click Here for User Information
Click Here for Warranty Information
KBN399
