Boilers

---

Ultra Series 3-UE Gas Boiler

Ultra Series 3-UE delivers peace of mind, unmatched comfort and immediate payback in energy savings.

Key Features

• Gas fired water boiler with cast aluminum heat exchanger
• Venturi mixing body mixes air and gas providing higher efficiency
• Designed to operate in low temperature condensing applications
• Outdoor reset and domestic hot water priority standard
• Negative regulated gas valve precisely delivers gas to the boiler
• U-Control gives you the power for easy set-up and maintenance
• Modulates with 5 to 1 turn-down ratio capability
• Variable speed motor matches combustion output to heating needs
• High grade stainless steel burner features quiet operation, high efficiency, and cleaner combustion for low NOx applications

Efficiency Rating Chart

Model	A.G.A. Input (MBH)	DOE Heating Capacity (MBH)	Net IBR Ratings (MBH)	Min. Vent Size	Annual Fuel Utilization Efficiency (AFUE)
UG-80	80	71	62	2 or 3 in. PVC/CPVC	95.2%
UG-105	105	94	81	2 or 3 in. PVC/CPVC	95.3%
UG-155	155	139	123	3 in. PVC/CPVC	95.6%
UG-230	230	207	183	3 or 4 in. PVC/CPVC	95.4%
UG-299	299	270	234	4 in. PVC/CPVC	96.4%
UG-399	399	365*	317	4 in. PVC/CPVC	91.7%*

*Combustion Efficiency

Ultra Series 3-UE Gas Boiler Consumer Brochure

Crown Bimini 95% Gas Boiler
High Efficiency, Condensing, Gas-Fired, Hot Water Boiler

Bimini features low-mass, cast aluminum heat exchangers which transfer heat more efficiently. Aluminum provides superior corrosion resistance, which is important on condensing boilers.

Key Features

• Cast aluminum heat exchanger
• Microprocessor controlled
• Direct vented to 100 feet
• Multiple venting options
• Natural or LP gas
• Five sizes from 70,000 to 425,000 BTU imput
• Residential efficiencies up to 95.4% AFUE
• Commercial thermal efficiencies up to 93.1%

Efficiency Rating Chart

Model	No. of Sections	Maximum Input (BTU/hr)	DOE Heating Capacity (BTU/hr)	IBR Net Rating (BTU/hr)	AFUE (%)
BWC070	mono block	70,000	63,000	55,000	95.4
BWC090	mono block	90,000	80,000	70,000	94.5
BWC120	mono block	120,000	107,000	93,000	95.2
BWC151	mono block	150,000	135,000	117,000	95.2
BWC150	3	150,000	135,000	117,000	93.1
BWC225	4	225,000	202,000	176,000	94.2

Crown Bimini 95% Gas Boiler Consumer Brochure

Weil McLain Gas Boiler
Atmospheric Gas Boiler (Water)

Key Features

• Control module and ignition control with mistake-proof wiring and diagnostic indicator lights
• Compact design saves valuable living space
• Stainless steel burners for quieter ignition, longer life, and improved combustion
• Gas fired water boiler with cast iron sections
• Easily accessible controls, vertical flueways and top cleaning for easy and quick servicing
• 83% AFUE

Efficiency Rating Chart

Model	A.G.A. Input (MBH)	PIDN	SPDN	SPDL	DOE Heating Capacity (MBH)	IBR Net Rating (MBH)	Min. Chimney Size
CGa-25	52	84.0	81.5	83.3	44	38	4" x 20'
CGa-3	70	84.0	81.6	83.7	59	51	4" x 20'
CGa-4	105	84.0	81.7	83.7	88	77	5" x 20'
CGa-5	140	83.5	81.8	83.7	117	102	6" x 20'
CGa-6	175	83.2	81.9	83.8	146	127	6" x 20'
CGa-7	210	83.0	82.0	83.8	175	152	7" x 20'
CGa-8	245	82.7	82.1	83.8	204	177	7" x 20'

Weil McLain Gas Boiler User Manual
Weil McLain Gas Boiler Consumer Brochure
Weil McLain Gas Boiler Consumer Brochure (French)

WGO Oil Boiler
High Efficiency Oil Boiler (Water)

Key Features

• Energy Star Rating
• Quick open top and swing-away burner door with full chamber access increases visibility for inspection and servicing
• Two flue outlets- rear and top - for complete venting flexibility
• Dedicated water-only oil boiler with cast iron section - no tankless heater or cover plate
• Recessed target wall design protects unit from flue brushes
• Includes factory-wired circulator, service switch and Weil-McLain exclusive captured elastomer seals for added reliability
• 85% AFUE

Efficiency Rating Chart

Model	IBR Burner Cap (GPH)	DOE Heating Capacity (MBH)	Net IBR Ratings (MBH)	Min. Chimney Size	Annual Fuel Utilization Efficiency (AFUE)
WGO-2	0.70	86	75	8 x 8	86.4
WGO-3	0.95	115	100	8 x 8	85.3
WGO-4	1.20	145	126	8 x 8	85.0
WGO-5	1.45	175	152	8 x 8	85.0
WGO-6	1.75	212	184	8 x 8	85.0
WGO-7	2.00	242	210	8 x 8	85.0
WGO-8	2.30	266	231	8 x 12	--
WGO-9	2.55	295	257	8 x 12	--

WGO Oil Boiler Consumer Brochure

Columbia Emerald Oil Fired Boiler

The Emerald Boiler provides the advantages of hydronic heat and a domestic hot water system all in one package. The EM line of boilers offers 11 boilers to meet the broad range of installation requirements. The Emerald Boiler is backed by a Limited Lifetime Warranty. The EM boiler is available with the Beckett, Carlin and Riello Burner.

Key Features

• Columbia offers 11 EM series units to fit your needs
• EM 3100 and 3125 meet energy start ratings
• EM boiler can be matched with a built in tankless coil to supply your family's domestic water needs
• One piece ceramic combustion chamber
• EM boiler features an attractive powder coat jacket for durability
• Built in air scoop for quiet, air free operation
• Large cast peep door allows an unobstructed view of the flame pattern
• Top flue application
• Limited Lifetime warranty
• ASME Boiler vessel

Efficiency Rating Chart

Model	Firing Rate (#2 Fuel)	Input (MBH)	DOE Heating Capacity (MBH)	Net IBR Rating (MBH)	GPM Tankless Coil
EM-85	0.85	119	101	88	3
EM-100	1.00	140	118	103	5
EM-3100	1.00	140	119	103	5
EM-110	1.10	154	130	113	5
EM-125	1.25	175	148	129	5
EM-3125	1.25	175	146	127	5
EM-135	1.35	189	159	138	5
EM-150	1.50	210	176	153	5
EM-165	1.65	231	183	168	5
EM-175	1.75	245	205	178	5
EM-200	2.00	280	234	203	5

Emerald Series Specification Sheet
Emerald Series Manual