Weil-McLain 384000007
Weil-McLain 384000007
Weil-McLain 384000007
Weil-McLain 384000007
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Weil-McLain 384000007
Weil-McLain 384000007
Weil-McLain 384000007

Weil-McLain SVF 1000 - 968K BTU - 96.8% Thermal Efficiency - Hot Water Gas Boiler - Direct Vent



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Weil-McLain SVF 1000 - 968K BTU - 96.8% Thermal Efficiency - Hot Water Gas Boiler - Direct Vent
Weil-McLain SVF 1000 - 968K BTU - 96.8% Thermal Efficiency - Hot Water Gas Boiler - Direct Vent
Model: 384000007
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Expert Recommended Accessories Selected by Bob, our Expert
Required Accessories 9
These accessories are required to properly setup/install this product.
Optional Accessories 10


    Over the last 130 years, Weil-McLain has built a reputation of designing some of the most reliable boilers in the marketplace. Their dedication to producing long-lasting heating solutions is seen in every boiler they make. The SVF boiler is a testament to Weil-McLain's dedication. Designed with corrosion resistant and durable materials, the Weil-McLain SVF boilers deliver energy efficiency and reliability. With streamlined set-up and installation, you will save time, labor and money.
  • Unity™ Control
  • Featuring Unity™ Control, the SVF Series allows for a simple, straight-forward installation. Customizable, you can even use the SVF Series in hybrid applications.
  • Exclusive Design
  • The clover-shaped, firetube design provides greater surface area to maximize heat transfer, resulting in industry-leading thermal efficiencies.
  • Streamlined Installation
  • With it's heavy-duty roller casters, you can easily manuever the boiler for installation. The low-profile burner design reduces required work space to 18 inches.
  • Easy Maintenance
  • Perform maintenance and service easily with the SVF series. The hinged cover allows for easy access to the burner and firetubes. The single-point service location make service calls a breeze for a trained Weil-McLain technician.
  • Door-Fit Design
  • Easily fitting through a 36" standard-size door, the contractor-friendly SVF series saves time, money and labor with it's door-fit design.
  • Long Lasting
  • Made from industrial-grade steel, the frame and jacket panels on the SVF series are built to last. The heat exchanger and shell are made from 316L stainless, creating reliable and long lasting performance.
California residents see
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.
For more information go to: www.p65Warnings.ca.gov


specs product image PID-102995
Product Category
General Information
Product Line
Product Category
Medium Learn More
Medium refers to the substance that carries heat through the heating system. Systems are either designed to use either Hot Water or Steam as a medium, and components are usually specific to one or the other.
Hot Water
Fuel Type Learn More
Fuel Type
To create heat, some form of fuel is required. Fuel Type specifies what the product uses as an input to create heat.
Natural Gas
Combustion Type Learn More
Combustion Type
Condensing appliances use leftover thermal energy from combustion gases to heat water in a secondary heat exchanger, resulting in higher efficiency and lower exhaust temperature.
Vent Type Learn More
Vent Type
Products that use combustion (burning) of fuel to create heat also create potentially dangerous gasses that need to be exhausted (AKA "Vented"). Depending on the product, venting can be done via a chimney, through a side wall, or use a second vent to provide fresh air to the appliance.
Direct Vent
DHW Production Learn More
DHW Production
DHW (Domestic Hot Water) is potable water for uses other than space heat. Some boilers are able to provide DHW "out of the box", while others can do so with the purchase of optional accessories.
Modulating/Staging Learn More
Stages are unique speeds or levels that equipment can operate at. More stages allow for better fine-tuned control of output, which improves comfort and efficiency. Modulating equipment can operate across a range of levels, giving the highest level of fine-tuned control. Learn More
Mount Type
Assembly Type
Gas Conversion Kit
Maximum Input Capacity Learn More
Maximum Input Capacity
The Maximum Input Capacity describes how quickly the appliance will use fuel when delivering it's maximum capacity. The units may change depending on the fuel being used.
1000000 BTU
DOE Heating Capacity Learn More
DOE Heating Capacity
Also referred to as Gross Output, this is the output of a boiler after accounting for combustion efficiency. We recommend sizing hot water boilers based on the DOE Heating Capacity.
968000 BTU
Net I=B=R Capacity Learn More
Net I=B=R Capacity
I=B=R, also referred to as Net Output or AHRI Capacity, is the rated heat output of a boiler after accounting for combustion efficiency, piping loss, and an extra pickup factor. We recommend sizing steam boilers based on the I=B=R rating.
842000 BTU
Efficiency Type
Thermal Efficiency
96.8 %
Ultra Low NOx Emissions Learn More
Ultra Low NOx Emissions
NOx is a byproduct of the combustion process, and it's output is regulated in some jurisdictions. Many regulators mirror SCAQMD rules, which regulate air quality for some parts of Southern California. Ultra Low NOx appliances emit less than 10-14 ng/J (nanogram per Joule) of NOx. Learn More
Turndown Ratio
Electrical Data
120 Volts
Flue Connection Size
6 Inches
Gas Connection Size
1 1/4 Inches
Boiler Supply
3 Inches
Product Height
79 3/8 Inches
Product Width
35 9/16 Inches
Product Depth
50 7/8 Inches
Shipping Weight
1875 Pounds
Energy Star Listed
CSA Listed
ASME Certified
AHRI Certified
AHRI Reference Number
Warranty Information
Parts Warranty Learn More
Parts Warranty
A warranty is a safeguard from defects in manufacturing and can vary in length and terms. To see the manufacturer's warranty statement, click on the Manuals tab. Learn More
2 Years
Heat Exchanger Warranty
10 Years


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Weil-McLain SVF 1000 - 968K BTU - 96.8% Thermal Efficiency - Hot Water Gas Boiler - Direct Vent
Weil-McLain 384000007
Weil-McLain 384000007
Weil-McLain 384000007
Weil-McLain 384000007
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