Canada-wide gas boiler information · On-site service in Greater Vancouver, BC
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Comparison
Verdict in brief
The Lochinvar Squire SDT065 and Lochinvar Squire SDT080 are both tankless water heaters in the Lochinvar Squire Indirect Tank (SIT/SDT/SET) line. Lochinvar Squire SDT080 lists 30 lb more shipping weight than Lochinvar Squire SDT065 (188 lb against 158 lb).
Published manufacturer figures. Input and output are kept separate; blanks mean the manufacturer did not publish that value.
| Specification | Lochinvar Squire SDT065 | Lochinvar Squire SDT080 |
|---|---|---|
| Shipping weight | 158 lb | 188 lb |
| Domestic water capacity | 66 gal | 79 gal |
| Heat source water volume | 2.1 gal | 2.1 gal |
| Standby loss | 0.5 °F/hr | 0.5 °F/hr |
| Continuous delivery | 175 GPH | 175 GPH |
| First hour delivery | 205 gal | 208 gal |
| Minimum coil load | 128,000 BTU/hr | 128,000 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 SDT080 lists 30 lb more shipping weight than Lochinvar Squire SDT065 (188 lb against 158 lb). The domestic water capacity differs: the Lochinvar Squire SDT065 lists 66 gal, while the Lochinvar Squire SDT080 lists 79 gal. The first hour delivery differs: the Lochinvar Squire SDT065 lists 205 gal, while the Lochinvar Squire SDT080 lists 208 gal.
Both records print the same heat source water volume (2.1 gal), standby loss (0.5 °F/hr), continuous delivery (175 GPH) and minimum coil load (128,000 BTU/hr), per the cited sources.
Lochinvar
The Lochinvar Squire SDT065 is a 66-gallon solar indirect water heater with a 316L stainless steel tank and coil, 0.5°F/hr standby loss and a 158 lb shipping weight.
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.
It ships at 188 lb against 158 lb for the Lochinvar Squire SDT065, per the cited sources.
Both list the same heat source water volume, standby loss, continuous delivery and minimum coil load, 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.