Canada-wide gas boiler information · On-site service in Greater Vancouver, BC
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Comparison
Verdict in brief
The Armor WAN125PM and WAN201PM are the smallest and largest wall models: 125,000 versus 201,000 BTU/hr input at 96% thermal efficiency, with recovery of 145 versus 232 GPH at a 100°F rise. The 125 is a Canada-only model and the 201 is the AHRI-certified model.
Published manufacturer figures. Input and output are kept separate; blanks mean the manufacturer did not publish that value.
| Specification | Lochinvar Armor WAN125PM | Lochinvar Armor WAN201PM |
|---|---|---|
| Input | 125,000 BTU/hr | 201,000 BTU/hr |
| Efficiency (thermal) | 96 % | 96 % |
| Recovery rate at 100°F rise | 145 GPH | 232 GPH |
| Turndown | 5:1 | 5:1 |
| Gas connection | 1/2" | 1/2" |
| Water connections | 1" | 1-1/4" |
| Air inlet size | 3" | 3" |
| Vent size | 3" | 3" |
| Shipping weight | 145 lb | 177 lb |
The WAN-Sub-CA submittal lists the WAN125PM at 125,000 BTU/hr input, 96% thermal efficiency, 145 GPH recovery and a 145 lb shipping weight; the WAN201PM lists 201,000 BTU/hr, 96%, 232 GPH and 177 lb.
The submittal flags WAN125PM and WAN200PM as Canada-only models and WAN201PM as the AHRI-certified model, so specifiers should confirm which edition applies to the project.
Both use a 1/2" gas connection, 3" air and vent connections and 5:1 turndown; the water connection steps from 1" on the 125 to 1-1/4" on the 201.
Lochinvar
The Lochinvar Armor WAN125PM is a wall-mounted commercial condensing water heater rated 125,000 BTU/hr input at 96% thermal efficiency with 145 GPH recovery at a 100°F rise.
Lochinvar
The Lochinvar Armor WAN201PM is a wall-mounted commercial condensing water heater rated 201,000 BTU/hr input at 96% thermal efficiency with 232 GPH recovery at a 100°F rise.
The WAN-Sub-CA submittal marks WAN201PM as the AHRI-certified model, with WAN125PM and WAN200PM flagged as Canada-only models.
The submittal lists 145 GPH for the WAN125PM and 232 GPH for the WAN201PM at a 100°F rise.
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.