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Team KNIGHT with SQUIRE for 

low-cost domestic hot water! 

KNIGHT’s Domestic Hot Water Prioritization feature means 

you can easily install it with Lochinvar’s SQUIRE

®

 indirect 

water heater, available in 30, 40, 50, 65, 80 and 119 

gallons. This combination will give homeowners high-

efficiency space heating from KNIGHT, and abundant 

domestic hot water from SQUIRE. With a stainless steel 

tank and heat exchanger, SQUIRE provides more hot water 

and lower water heating costs than standard gas or electric 

water heaters.

State-of-the-Art Modulating Combustion System

Advanced Negative Regulation Technology

KNIGHT safely and reliably operates with supply gas pressures as low as 4 inches water column. Plus “Neg/Reg” technology 

automatically adjusts gas pressure to ensure the correct volume of fuel and air entering the burner.

Direct-Spark Ignition

With each call for heat, two electrodes ignite the fuel/air mixture. A third electrode 

then senses for flame. The SMART SYSTEM will generate a soft lockout and 

display a fault if ignition does not occur after 3 attempts.

Fully Modulating Burner with 5:1 Turndown

The SMART SYSTEM allows fully modulating combustion with 5:1 

turndown. The burner can fire as low as 20% of maximum input 

and modulate the firing rate up to 100% as demand increases. 

A woven stainless steel mesh enclosed burner tube fires in a 360° 

pattern along the entire length of the primary heat exchanger. 

Two-in-One Stainless Steel Heat Exchanger

A primary heat exchanger combined with a secondary heat exchanger 

captures flue gas heat and condenses to utilize  available latent 

energy. The stainless steel, pH-tolerant design features a weld-sealed 

assembly with no O-rings or gaskets and does not require special 

glycol. ASME Section IV approved and stamped. 

Field Connection Versatility 

User-friendly terminal strip allows for 44 low-voltage field connections. 

Four-line voltage connections supply power to the unit and up to three 

pumps operated by the SMART SYSTEM.

UIRE for 

ot water! 

KNIGHT’s Domestic Hot Water Prioritization feature means

you can easily install it with Lochinvar’s SQUIRE

®

indirect 

water heater available i

30 40 50 65 80

d 119

 correct volume of fuel and air entering the burner.

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KBN286 Shown

KBN286 Shown

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