Canada-wide gas boiler information · On-site service in Greater Vancouver, BC
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Comparison
Verdict in brief
Both the Lochinvar Squire SDT080 and the Lochinvar Squire SDT119 belong to the Lochinvar Squire Indirect Tank (SIT/SDT/SET) line of tankless water heaters. Lochinvar Squire SDT119 lists 36 lb more shipping weight than Lochinvar Squire SDT080 (224 lb against 188 lb).
Published manufacturer figures. Input and output are kept separate; blanks mean the manufacturer did not publish that value.
| Specification | Lochinvar Squire SDT080 | Lochinvar Squire SDT119 |
|---|---|---|
| Shipping weight | 188 lb | 224 lb |
| Domestic water capacity | 79 gal | 110 gal |
| Heat source water volume | 2.1 gal | 3.2 gal |
| Standby loss | 0.5 °F/hr | 0.4 °F/hr |
| Continuous delivery | 175 GPH | 251 GPH |
| First hour delivery | 208 gal | 301 gal |
| Minimum coil load | 128,000 BTU/hr | 181,000 BTU/hr |
| Flow rate | 14 GPM | 14 GPM |
| Domestic water connections | 1-1/2" | 1-1/2" |
| Tank and coil | 316L passivated stainless steel | 316L passivated stainless steel |
Lochinvar Squire SDT119 lists 36 lb more shipping weight than Lochinvar Squire SDT080 (224 lb against 188 lb). The domestic water capacity differs: the Lochinvar Squire SDT080 lists 79 gal, while the Lochinvar Squire SDT119 lists 110 gal. The heat source water volume differs: the Lochinvar Squire SDT080 lists 2.1 gal, while the Lochinvar Squire SDT119 lists 3.2 gal. The standby loss differs: the Lochinvar Squire SDT080 lists 0.5 °F/hr, while the Lochinvar Squire SDT119 lists 0.4 °F/hr.
Both records print the same flow rate (14 GPM), domestic water connections (1-1/2") and tank and coil (316L passivated stainless steel), per the cited sources.
Lochinvar
The Lochinvar Squire SDT080 is a 79-gallon solar indirect water heater with a 316L stainless steel tank and coil, 0.5°F/hr standby loss and a 188 lb shipping weight.
Lochinvar
The Lochinvar Squire SDT119 is a 110-gallon solar indirect water heater with a 316L stainless steel tank and coil, 0.4°F/hr standby loss and a 224 lb shipping weight.
It ships at 224 lb against 188 lb for the Lochinvar Squire SDT080, per the cited sources.
Both list the same flow rate, domestic water connections and tank and coil, per the cited sources.
A consultation includes a heat-loss review so the size is right the first time.
On-site service in Greater Vancouver, BC. ROMA lists “Open 7 days” on its site; call to confirm same-day availability.
Sources and verification
Facts checked September 9, 2026. Last updated September 9, 2026. Technical reviewer: not yet assigned.