Canada-wide gas boiler information · On-site service in Greater Vancouver, BC
Boilers.ca is a brand of ROMA Heating & Cooling · Licensed gas contractor LGA0202903
Comparison
Verdict in brief
Both the Crown Bimini BWC120 and the Crown Bimini BWC150 belong to the Crown Boiler Co. Bimini (legacy) line of condensing boilers. Published ratings: Crown Bimini BWC120 at 40–120 MBH input and 107 MBH DOE heating capacity; Crown Bimini BWC150 at 50–150 MBH input and 133 MBH DOE heating capacity. Crown Bimini BWC150 lists 30 MBH more input than Crown Bimini BWC120 (150 MBH against 120 MBH).
Published manufacturer figures. Input and output are kept separate; blanks mean the manufacturer did not publish that value.
| Specification | Crown Bimini BWC120 | Crown Bimini BWC150 |
|---|---|---|
| Input, minimum | 40 MBH | 50 MBH |
| Input, maximum | 120 MBH | 150 MBH |
| 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 |
| Venting | Direct vent — concentric or approved stainless systems | Inlet 4", exhaust 3" |
| Control | Honeywell Sola control | MCBA control |
| Fuel | Natural gas or propane | Natural gas or propane |
| DOE heating capacity | 107 MBH | 133 MBH |
| Net water rating | 93 MBH | 117 MBH |
Published ratings: the Crown Bimini BWC120 is rated 40–120 MBH input and 107 MBH DOE heating capacity; the Crown Bimini BWC150 is rated 50–150 MBH input and 133 MBH DOE heating capacity. Crown Bimini BWC150 lists 30 MBH more input than Crown Bimini BWC120 (150 MBH against 120 MBH).
The venting differs: the Crown Bimini BWC120 lists Direct vent — concentric or approved stainless systems, while the Crown Bimini BWC150 lists Inlet 4", exhaust 3". The control differs: the Crown Bimini BWC120 lists Honeywell Sola control, while the Crown Bimini BWC150 lists MCBA control.
Both records print the same domestic-hot-water arrangement (Heating-only boiler — domestic hot water comes from a separate indirect tank or water heater) and fuel (Natural gas or propane), per the cited sources.
Crown Boiler Co.
The Crown Bimini BWC120 is the 120-MBH-class model of the Sola-control BWC generation (suffix EN for natural gas, EL for propane): an aluminum, wall-hung, direct-vent condensing boiler firing 40–120 MBH with 107 MBH DOE heating capacity and a 93 MBH net water rating.
Crown Boiler Co.
The Crown Bimini BWC150 is the 150-MBH-class floor model of the MCBA-control BWC generation (LP suffix for propane): an aluminum condensing boiler firing 50–150 MBH with 133 MBH DOE heating capacity and a 117 MBH net water rating over 3 sections, with a 4" vent-collar inlet and 3" exhaust collar.
The Crown Bimini BWC150 lists 150 MBH, against 120 MBH on the Crown Bimini BWC120, per the cited documentation.
The Crown Bimini BWC150 lists 133 MBH, against 107 MBH on the Crown Bimini BWC120.
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.