Lochinvar Squire SIT 80-Gallon Indirect Water Heater

Model SIT080
4.6/5 from 120 ratings
from Check current price
Price as of May 2026
Check Price on Amazon
Free shipping with Amazon Prime · 30-day returns
Fuel Type
Hydronic
Tank Type
Indirect
Tank Material
Stainless Steel
Warranty Years
10
Capacity Gallons
80

Lochinvar Squire SIT 80-Gallon Indirect Water Heater Review

The Lochinvar Squire SIT 80-Gallon Indirect Water Heater is the standard 80-gallon variant in Lochinvar's SQUIRE indirect line. Same fundamental engineering as the smaller SIT040 and SIT065 at larger capacity.

Specs: 80 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 80-gallon capacity covers 5+ person households with hydronic boiler installations. About $1,900 unit, $3,000-$3,800 installed depending on boiler integration.

Right buyer: large household with existing or new Lochinvar boiler, primary residence wanting hydronic-driven DHW for heavy demand profiles.

Full Specifications

Brand
Lochinvar
Model Number
SIT080
Fuel Type
Hydronic
Tank Type
Indirect
Tank Material
Stainless Steel
Warranty Years
10
Capacity Gallons
80

Similar Water Heaters

Rinnai

Rinnai RU199iN Sensei Tankless Water Heater

199000 Natural Gas Tankless
Check current price
4.8
View Details
Rheem

Rheem Marathon Lifetime 50-Gallon Electric Water Heater

4500 Electric Tank
Check current price
4.8
View Details
Triangle Tube

Triangle Tube Smart 80 Indirect Water Heater 80-Gallon

Indirect Indirect 0.88
Check current price
4.7
View Details