Canada-wide gas boiler information · On-site service in Greater Vancouver, BC
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Comparison
Verdict in brief
U.S. Boiler Company Alpine ALP210B and U.S. Boiler Company Alpine ALP285B are two condensing boilers from the U.S. Boiler Company Alpine line. The U.S. Boiler Company Alpine ALP210B is rated 42–210 MBH input, 194 MBH heating capacity and 95% AFUE, and the U.S. Boiler Company Alpine ALP285B is rated 57–285 MBH input, 262 MBH heating capacity and 95% AFUE. U.S. Boiler Company Alpine ALP285B lists 75 MBH more input than U.S. Boiler Company Alpine ALP210B (285 MBH against 210 MBH). Both list the same published AFUE of 95%. U.S. Boiler Company Alpine ALP285B lists 50 lb more shipping weight than U.S. Boiler Company Alpine ALP210B (256 lb against 206 lb).
Published manufacturer figures. Input and output are kept separate; blanks mean the manufacturer did not publish that value.
| Specification | U.S. Boiler Company Alpine ALP210B | U.S. Boiler Company Alpine ALP285B |
|---|---|---|
| Input, minimum | 42 MBH | 57 MBH |
| Input, maximum | 210 MBH | 285 MBH |
| DOE heating capacity | 194 MBH | 262 MBH |
| Net AHRI water rating | 169 MBH | 228 MBH |
| Efficiency (AFUE) | 95 % | 95 % |
| Domestic hot water | Heating-only boiler — domestic hot water comes from a separate indirect tank or water heater | Heating-only boiler — domestic hot water comes from a separate indirect tank or water heater |
| Approx. shipping weight | 206 lb | 256 lb |
| Dimensions (width × height) | 23-15/16" × 32-3/16" | 21-13/16" × 43-7/16" |
| Venting | Direct vent, sealed combustion, Category IV | Direct vent, sealed combustion, Category IV |
| Supply/return connections | 1" NPT (3/4" return tapping on ALP080B/ALP105B per the dimension table) | 1" NPT (3/4" return tapping on ALP080B/ALP105B per the dimension table) |
| Gas connection | 1/2" NPT (3/4" on ALP285B/ALP399C per the dimension table) | 1/2" NPT (3/4" on ALP285B/ALP399C per the dimension table) |
| Control | Sage2.3 Boiler Control System with LCD touch screen | Sage2.3 Boiler Control System with LCD touch screen |
| Fuel | Natural gas or LP gas | Natural gas or LP gas |
| Vent and intake size | 3" | 4" |
Published ratings: the U.S. Boiler Company Alpine ALP210B is rated 42–210 MBH input, 194 MBH heating capacity and 95% AFUE; the U.S. Boiler Company Alpine ALP285B is rated 57–285 MBH input, 262 MBH heating capacity and 95% AFUE. U.S. Boiler Company Alpine ALP285B lists 75 MBH more input than U.S. Boiler Company Alpine ALP210B (285 MBH against 210 MBH). Both list the same published AFUE of 95%.
U.S. Boiler Company Alpine ALP285B lists 50 lb more shipping weight than U.S. Boiler Company Alpine ALP210B (256 lb against 206 lb). The dimensions differs: the U.S. Boiler Company Alpine ALP210B lists 23-15/16" × 32-3/16", while the U.S. Boiler Company Alpine ALP285B lists 21-13/16" × 43-7/16". The vent and intake size differs: the U.S. Boiler Company Alpine ALP210B lists 3", while the U.S. Boiler Company Alpine ALP285B lists 4".
Both records print the same AFUE (95%), domestic-hot-water arrangement (Heating-only boiler — domestic hot water comes from a separate indirect tank or water heater), venting (Direct vent, sealed combustion, Category IV) and water connections (1" NPT (3/4" return tapping on ALP080B/ALP105B per the dimension table)), per the cited sources.
U.S. Boiler Company
The U.S. Boiler Company Alpine ALP210B fires 42–210 MBH input with 194 MBH DOE heating capacity and a 169 MBH net AHRI water rating at 95% AFUE — the largest wall-or-floor-mount size in the 32-3/16-inch cabinet — on the stainless-steel condensing platform with the Sage2.3 touch-screen control.
U.S. Boiler Company
The U.S. Boiler Company Alpine ALP285B fires 57–285 MBH input with 262 MBH DOE heating capacity and a 228 MBH net AHRI water rating at 95% AFUE — the first of the taller floor-mounted sizes with 4-inch venting — on the stainless-steel condensing platform with the Sage2.3 touch-screen control.
The U.S. Boiler Company Alpine ALP285B lists 285 MBH, against 210 MBH on the U.S. Boiler Company Alpine ALP210B, per the cited documentation.
Both list the same AFUE of 95%.
It ships at 256 lb against 206 lb for the U.S. Boiler Company Alpine ALP210B, 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.