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Home  >  Hydronics  >  Boilers  >  Residential High Efficiency  > 383-500-738 ULTRA 399 BOILER

383-500-738 ULTRA 399 BOILER SERIES 4

Item #: 87367 
Manufacturer Item: 383-500-738
Manufacturer: WEIL-MCLAIN CORP
399000 BTU/Hr, 2.1 Gallon, Cast Aluminum, High Efficiency, Residential Condensing Natural/LP Gas Boiler

Heating perfection and long-term protection

Every Ultra boiler is hydrostatically tested to ASME standards and test fired

Backed by Weil-McLain quality and a warranty that provides peace of mind

Unrivaled technical and field sales support

From North America's leading boiler manufacturer with over 135 years of proud history

Designed to operate in low temperature condensing applications

Outdoor reset and domestic hot water priority

Modulates with 5:1 turn-down ratio

High grade stainless steel burner features quiet operation

U-Control gives you the power for easy set-up and maintenance

Back-lit LCD display and simple programming buttons make entering and receiving information easy

Energy Star® Rated

Residential High Efficiency

Applicable Standard
AHRI, ASME, CSA, DOE
Boiler Dimensions
22-13/16 Inch x 22-1/8 Inch x 47-3/4 Inch
Gas Connection
3/4 Inch
Gas Type
Natural, Liquid Propane
Supply Connection
1-1/4 Inch
Type
High Efficiency, Condensing, Water
AFUE Rating
91.7 Percent
AGA Input Rating
399000 BTU/Hour
Return Connection
1-1/4 Inch
DOE Heating Capacity
364000 BTU/Hour
Options
Ultra Easy-Up Manifolds, PVC Concentric Vent Kit,
Warranty
12 Year
Burner Type
Stainless Steel
Pressure Rating
30 PSI
Venting Type
Direct
Mounting Type
Wall
Water Content
2.1 Gallon
Inclusions/Features
Nanotechnology, Environmentally Friendly
Boiler Material
Cast Aluminum
Ignition Type
Direct Spark