
With a 93% AFUE rating, the Knight's high-tech design and high-efficiency performance make it the smartest way to heat your home.
The Lochinvar Knight offers great versatility with 7 models to choose from which meet all your residential and commercial needs from new construction to boiler replacement to radiant applications.
The Knight exceeds today's toughest environmental standards.
Boiler modulates down to 20% of its maximum input, producing optimum comfort and energy efficiency
Ideal for radiant floor heating
Uses propane or natural gas
AFUE efficiency 93% to 98.6%
12 year warranty on heat exchanger
Typical payback: Unit often pays for itself in as little as 3 years
Completely sealed system
Programmable setbacks
Direct vent up to 160'
Pump relay with freeze protection
Includes outdoor reset, self diagnostics
Low NOx
Whisper quiet operation
| MODEL | KBN080 | KBN105 | KBN150 | KBN210 | KBN285 | KBN399 | KBN500 |
|---|---|---|---|---|---|---|---|
| BTU Input Modulation Minimum | 16,000 | 21,000 | 30,000 | 42,000 | 57,000 | 80,000 | 100,000 |
| BTU Input Modulation Maximum | 80,000 | 105,000 | 150,000 | 210,000 | 285,000 | 399,999 | 500,000 |
This chart shows what you'll save with the Knight condensing boiler compared to older units with 75% AFUE efficiencies. Operating costs are based on an 80,000 BTU heating load and 2,000 hours of operations with a fuel cost of $1.13 per therm.