Weil-McLain GV90+4 97K BTU 91.2% AFUE Hot Water Gas Boiler Direct Vent

Model: GV90+4 Item Number: 49647
Weil-McLain GV90+4
Weil-McLain GV90+4
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Our Price: $3,915.00
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Weil-McLain GV90+4 97K BTU 91.2% AFUE Hot Water Gas Boiler Direct Vent
Weil-McLain GV90+4 97K BTU 91.2% AFUE Hot Water Gas Boiler Direct Vent Model: GV90+4 Item Number: 49647
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*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges map apply, see our full shipping policy for more details.
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Free Lift Gate
*This product qualifies for Free Lift Gate Service. Items over 100lbs normally ship via semi-truck. Select this service if you need the product lowered to the ground curbside. To learn more about Lift Gate Service, read our shipping policy.
Specification Highlights
    New Learn More
    This product is new and has never been used. It's in its original packaging, which has not been opened.
    353 Pounds Learn More
    353 Pounds
    Total weight of the product and any included accessory/components. This total is not the shipping weight, as it does not include packing material, which may increase the overall shipping weight of this product.
    Product Category
Recommended Accessories
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Required Accessories Add All Required
Installation Accessories
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Overview for Weil-McLain GV90+4

Overview for Weil-McLain 382200611Over 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 lasting heating solutions is seen in every boiler they make. The GV90+ is a testament to their dedication to durability. A steel base and jacket are combined with cast-iron sections to make one of the most rugged high efficiency boilers in the marketplace. Condensing technology allows the GV90+ to capture gases expelled by traditional boilers and reuse the heat that these gases contain, saving you energy and expense. Getting your GV90+ up and running is simple; the boiler control features snap in connections and venting can be achieved through a direct vent, direct exhaust, or concentric vent system. The GV90+ is a boiler that will save you money for years into the future, the boiler's high efficiency and durability see to that.
Product Features
Dual Heat Exchangers Weil-McLain has doubled up on the heat exchangers for the GV90+. A cast-iron primary exchanger provides reliable heat and peace of mind with its tremendous durability. The secondary exchanger is made from stainless steel to resist the corroding effect of condensation. Multi-Pass Efficiency The GV90+ features multi-pass designs for both heat exchangers. A five pass primary exchanger and two pass secondary exchanger improve the heat transfer surface area of the boiler. By facilitating heat transfer in this manner, the GV90+ is getting more heat out of less energy, improving system efficiency and comfort. Dual Circulators The GV90+ includes a bypass circulator and system circulator. Including two circulators allows the GV90+ to accept low temperature return water that would damage other boilers, expanding the possible applications for the boiler right out of the box. Extra Wide Waterways The design of the GV90+ includes extra wide waterways. These channels are a blessing for older systems where debris may be present. Wider waterways improve flow within the boiler and prevent buildup which can limit efficiency.
Product Includes
  • (1) Weil-McLain GV90+ 4 Hot Water Boiler
  • (1) Natural Gas to Liquid Propane Conversion Kit
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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
Heat Exchanger Material
Cast Iron
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.
Mount Type
Minimum Altitude
0 Feet
Maximum Altitude
5500 Feet
Includes Pump
Assembly Type
Gas Conversion Kit
AFUE Learn More
AFUE (Annual Fuel Utilization Efficiency) measures the efficiency of combustion equipment over the entire heating season, and is calculated by dividing the amount of energy that is actually heating your home by the total energy contained in the fuel used by the boiler/furnace.
91 %
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.
105000 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.
97000 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.
84000 BTU
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.
Electrical Data
60 Hz
Flue Connection Size
3 Inches
Gas Connection Size
1/2 Inch
Supply Connection
1 Inch
Return Connection
1 Inch
Product Height
30 3/4 Inches
Product Width
16 Inches
Product Depth
30 3/4 Inches
Product Weight
353 Pounds
Shipping Weight
353 Pounds
Country of Origin
United States
CSA Listed
Energy Star Listed
ASME Certified
AHRI Certified
AHRI Reference Number
Warranty Information
Parts Warranty Show ACW 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
20 Years
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Weil-McLain GV90+4 97K BTU 91.2% AFUE Hot Water Gas Boiler Direct Vent
Weil-McLain GV90+4
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