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Crown Boiler Co. · Series

Crown Boiler Co. Bimini (legacy)

The Bimini (BWC) is Crown's legacy aluminum gas condensing boiler family — a wall-hung Sola-control generation (BWC070/090/120/151) and a later floor-model MCBA-control generation (BWC150/225) — now absent from the current catalogue and documented only on the frozen crownboiler.com legacy pages and hosted manuals.

discontinuedunknownNatural gasPropaneresidential

Series facts

Type
condensing
Efficiency
Unknown
Fuel
Natural gas or LP gas per both generations' manuals: the wall-hung generation adds EN (natural gas) / EL (propane) suffixes (BWC070EN style); the later floor-model generation adds an LP suffix (BWC150LP style). Ratings are the same for both fuels.
Venting
Direct vent, condensing: the Sola-generation manual covers Crown 60/100mm and 80/125mm concentric venting plus approved 3" AL29-4C stainless venting with maximum lengths per model; the MCBA-generation manual prints 4" vent-collar inlets with 3" (BWC150) or 4" (BWC225) exhaust collars.
Models documented
6
Warranty
Not verified

About the Bimini (legacy)

The Bimini (BWC Series) is Crown's legacy high-efficiency gas-fired, direct-vent condensing boiler, documented on crownboiler.com's frozen 'Residential Gas' navigation (the product page itself carries no body copy). Two generations share the BWC name and must not be mixed, per the batch8 research: the wall-hung Sola generation (BWC070, BWC090, BWC120, BWC151 — aluminum gas condensing boilers for forced hot water systems at supply temperatures of 180°F or less, with a Honeywell Sola control and optional pedestal mounting), and the later floor-model MCBA generation (BWC150, BWC225) whose manual stamps its aluminum heat exchangers to ASME Boiler and Pressure Vessel Code Case 2382-2 and prints an LP suffix convention (BWC225LP style).

The Sola-generation specification table (Table 2.2) lists maximum/minimum inputs of 70/30, 90/30, 120/40 and 150/50 MBH with DOE heating capacities of 63–135 MBH, net water ratings of 55–119 MBH (1.15 pickup allowance), water volumes of 0.41–1.13 gallons, 1" NPT supply/return and 1/2" NPT gas connections, and approximate net weights of 102–133 lb. The MCBA-generation table prints 150/50 and 225/75 MBH max/min inputs, 133 and 202 MBH DOE capacities, 117 and 176 MBH net water ratings, over 3 and 4 sections, with 4" vent-collar inlets and 3" (BWC150) or 4" (BWC225) exhaust collars.

Neither generation's sourced installation manual prints an AFUE figure, so Boilers.ca leaves efficiency unstated rather than guessing. Neither generation is a combi — Bimini Buddy was a separate add-on domestic water tank documented as an accessory. The Bimini is not in the current Velocity Boiler Works menu, so productStatus is 'discontinued'; Boilers.ca records six models at model level (four Sola-generation, two MCBA-generation) from the hosted legacy manuals. No official Canadian-sales statement was found, so canadianStatus stays 'unknown'.

Highlights

  • Legacy Crown condensing line: two BWC generations (Sola: BWC070/090/120/151; MCBA: BWC150/225)
  • Aluminum heat exchangers; direct vent; wall-hung Sola generation with optional pedestal
  • Sola generation: 30–150 MBH min/max inputs, DOE capacities 63–135 MBH, net water 55–119 MBH
  • MCBA generation: BWC150/BWC225 at 150/225 MBH max input (ASME Code Case 2382-2 heat exchangers)
  • No AFUE printed in the sourced installation manuals — left unstated
  • Absent from the current Velocity Boiler Works menu; legacy docs still hosted at crownboiler.com
  • Model-level pages published on Boilers.ca from the hosted legacy manuals

Models

Bimini (legacy) models

One canonical page per model with input, output and efficiency kept separate.

Crown Boiler Co.

Crown Bimini BWC070

DiscontinuedCanadian status unknown
Input
30–70 MBH
Output (max)
AFUE

The Crown Bimini BWC070 is the 70-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 30–70 MBH with 63 MBH DOE heating capacity and a 55 MBH net water rating.

Natural gasPropaneHeating-only

Crown Boiler Co.

Crown Bimini BWC090

DiscontinuedCanadian status unknown
Input
30–90 MBH
Output (max)
AFUE

The Crown Bimini BWC090 is the 90-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 30–90 MBH with 80 MBH DOE heating capacity and a 70 MBH net water rating.

Natural gasPropaneHeating-only

Crown Boiler Co.

Crown Bimini BWC120

DiscontinuedCanadian status unknown
Input
40–120 MBH
Output (max)
AFUE

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.

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

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 BWC225

DiscontinuedCanadian status unknown
Input
75–225 MBH
Output (max)
AFUE

The Crown Bimini BWC225 is the 225-MBH-class floor model of the MCBA-control BWC generation (LP suffix for propane): an aluminum condensing boiler firing 75–225 MBH with 202 MBH DOE heating capacity and a 176 MBH net water rating over 4 sections, with a 4" vent-collar inlet and 4" exhaust collar.

Natural gasPropaneHeating-only

Compare models in this series

Comparison of Crown Bimini BWC070 and Crown Bimini BWC090 and Crown Bimini BWC120 and Crown Bimini BWC151 and Crown Bimini BWC150 and Crown Bimini BWC225
SpecificationCrown Bimini BWC070Crown Bimini BWC090Crown Bimini BWC120Crown Bimini BWC151Crown Bimini BWC150Crown Bimini BWC225
Input, minimum30 MBH30 MBH40 MBH50 MBH50 MBH75 MBH
Input, maximum70 MBH90 MBH120 MBH150 MBH150 MBH225 MBH
output-max
afue
turndown
vent-max-3
vent-max-2
Approx. net weight102 lb102 lb110 lb133 lb

Read the full comparison: Crown Bimini BWC070 vs BWC090

Read the full comparison: Crown Bimini BWC090 vs BWC120

Read the full comparison: Crown Bimini BWC120 vs BWC150

Read the full comparison: Crown Bimini BWC150 vs BWC151

Error codes and alerts

Bimini (legacy) alerts

Manuals

Official documents

Where ROMA provides on-site service

On-site service is currently offered in Greater Vancouver, BC, including Vancouver, Burnaby, Richmond, Surrey, Coquitlam, North Vancouver, West Vancouver, New Westminster, Port Coquitlam, Port Moody, Delta, Langley, Maple Ridge, Abbotsford, Chilliwack, White Rock, Pitt Meadows, Tsawwassen, Anmore, Lions Bay, Belcarra, Bowen Island, Mission. Everything else on this site is reference information you can use anywhere in Canada.

See all service areas

Frequently asked questions

Is the Crown Bimini still sold?

No — the Bimini appears only in the frozen crownboiler.com legacy navigation and is absent from the current Velocity Boiler Works product menu, so Boilers.ca records productStatus 'discontinued'.

Are there two different Bimini boilers?

Yes — two generations share the BWC name: the wall-hung Sola-control generation (BWC070/090/120/151, EN/EL suffixes) and the later floor-model MCBA-control generation (BWC150/225, LP suffix). Match the manual to the generation on the rating plate.

Was the Bimini a combi boiler?

No — it produced space heating only. The 'Bimini Buddy' was a separate add-on domestic water tank documented as an accessory on the legacy site, not a combi function of the boiler.

Talk to a boiler technician

Describe what the boiler is doing and get a straight answer about the next step.

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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