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Comparison

Crown Bimini BWC150 vs BWC151

Verdict in brief

Both the Crown Bimini BWC150 and the Crown Bimini BWC151 belong to the Crown Boiler Co. Bimini (legacy) line of condensing boilers. The Crown Bimini BWC150 is rated 50–150 MBH input and 133 MBH DOE heating capacity, and the Crown Bimini BWC151 is rated 50–150 MBH input and 135 MBH DOE heating capacity. Both list the same published input of 150 MBH.

Side by side

Published manufacturer figures. Input and output are kept separate; blanks mean the manufacturer did not publish that value.

Comparison of Crown Bimini BWC150 and Crown Bimini BWC151
SpecificationCrown Bimini BWC150Crown Bimini BWC151
Input, minimum50 MBH50 MBH
Input, maximum150 MBH150 MBH
Domestic hot waterHeating-only boiler — domestic hot water comes from a separate indirect tank or water heaterHeating-only boiler — domestic hot water comes from a separate indirect tank or water heater
Vent collar diametersInlet 4", exhaust 3"Direct vent — concentric or approved stainless systems
ControlMCBA controlHoneywell Sola control
FuelNatural gas or propaneNatural gas or propane
DOE heating capacity133 MBH135 MBH
Net water rating117 MBH119 MBH

What actually separates them

Published ratings: the Crown Bimini BWC150 is rated 50–150 MBH input and 133 MBH DOE heating capacity; the Crown Bimini BWC151 is rated 50–150 MBH input and 135 MBH DOE heating capacity. Both list the same published input of 150 MBH.

The venting differs: the Crown Bimini BWC150 lists Inlet 4", exhaust 3", while the Crown Bimini BWC151 lists Direct vent — concentric or approved stainless systems. The control differs: the Crown Bimini BWC150 lists MCBA control, while the Crown Bimini BWC151 lists Honeywell Sola control.

Both records print the same input (50 MBH), input (150 MBH), 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.

Crown Bimini BWC150

DiscontinuedCanadian status unknown
Input
50–150 MBH
Output (max)
AFUE

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.

Natural gasPropaneHeating-only

Crown Boiler Co.

Crown Bimini BWC151

DiscontinuedCanadian status unknown
Input
50–150 MBH
Output (max)
AFUE

The Crown Bimini BWC151 is the 150-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 50–150 MBH with 135 MBH DOE heating capacity and a 119 MBH net water rating.

Natural gasPropaneHeating-only

Frequently asked questions

Do the two models share the same input?

Yes — both list 150 MBH in the cited documentation.

Which model has the higher DOE heating capacity?

The Crown Bimini BWC151 lists 135 MBH, against 133 MBH on the Crown Bimini BWC150.

Not sure which one fits your home?

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.

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