High-efficiency condensing boilers come in a variety of sizes for the most economical fit for your needs. Clean-burning propane or natural gas.

Lochinvar Knight: modulating condensing boiler

Lochinvar Knight

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

Lochinvar Knight: modulating condensing boiler, wall-hung

Lochinvar Knight - Wall Hung

New wall-mounted boiler line

Frees up valuable floor space

Same features as floor-standing model

Available in five sizes

MODEL WBN050 WBN080 WBN105 WBN150 WBN210
BTU Input Modulation Minimum 10,000 16,000 21,000 30,000 42,000
BTU Input Modulation Maximum 50,000 80,000 105,000 150,000 210,000