Lochinvar KNIGHT WHN85 85 MBH Wall-Hung Combi Boiler
Model WHN085
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Price as of May 2026
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Btu
85000
Venting
Direct Vent
Fuel Type
Natural Gas
Tank Type
Combi Boiler
Condensing
1
Energy Factor
0.95
Lochinvar KNIGHT WHN85 85 MBH Wall-Hung Combi Boiler Review
The Lochinvar KNIGHT WHN85 is an 85K BTU wall-hung combi boiler. Smallest in Lochinvar's KNIGHT residential combi line. Sized for very small homes (800-1,200 sq ft) with modest hydronic demand.
Specs: 85,000 BTU input, AFUE 95% (condensing), 2.5 GPM DHW at a 70°F rise, modulating burner with 6:1 turndown ratio, stainless steel heat exchanger, PVC condensing venting. 15-year warranty on heat exchanger.
The KNIGHT 85 is right-sized for very small homes — apartments, ADUs, small starter homes. About $6,500-$8,500 installed depending on hydronic system modifications.
Right buyer: small home or ADU replacing aging boiler + separate water heater with single small combi unit.
Full Specifications
Brand
Lochinvar
Model Number
WHN085
Btu
85000
Venting
Direct Vent
Fuel Type
Natural Gas
Tank Type
Combi Boiler
Condensing
1
Energy Factor
0.95
Flow Rate Gpm
3.4
Warranty Years
10
Capacity Gallons
0
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