Lochinvar Squire SIT 120-Gallon Indirect Water Heater
Model SIT120
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Price as of May 2026
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Fuel Type
Hydronic
Tank Type
Indirect
Tank Material
Stainless Steel
Warranty Years
10
Capacity Gallons
120
Lochinvar Squire SIT 120-Gallon Indirect Water Heater Review
The Lochinvar Squire SIT 120-Gallon Indirect Water Heater is the largest indirect in Lochinvar's SIT line. Sized for very large households or commercial-residential crossover applications with hydronic boiler systems.
Specs: 120 gallons stored, stainless steel internal coil heat exchanger, polyurethane foam insulation. Compatible with Lochinvar boilers and most US residential boilers. 10-year tank warranty.
The 120-gallon capacity exceeds typical residential. Use cases: very large households, multi-generational homes, small commercial applications.
About $2,800 unit, $4,200-$5,200 installed depending on boiler integration. Right buyer: very large residential or small commercial application with Lochinvar boiler installation.
Full Specifications
Brand
Lochinvar
Model Number
SIT120
Fuel Type
Hydronic
Tank Type
Indirect
Tank Material
Stainless Steel
Warranty Years
10
Capacity Gallons
120
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