Free Shipping on orders over $199 Includes Lower 48|Need help? Call (866) 631-6389
open nav
close nav
Wholesale Direct to the Public
Home Comfort Heating & A/C Products
You have in your cart
Shopping Cart Cart |
Home Icon Home / Shop by Brand / Bosch Thermotechnology / ZWB28-3

Bosch 89,000 BTU 95% AFUE Condensing Boiler Greenstar NG/LP Combi 100

Model: ZWB28-3 Item Number: 37392
Ask a Question
Bosch Thermotechnology ZWB28-3
PREVIOUS
NEXT
Bosch Thermotechnology ZWB28-3
Enlarge Image
Our Price: $3,049.00

Ships in 4-7 Business Days
Bosch 89,000 BTU 95% AFUE Condensing Boiler Greenstar NG/LP Combi 100
Bosch 89,000 BTU 95% AFUE Condensing Boiler Greenstar NG/LP Combi 100 Model: ZWB28-3 Item Number: 37392
$3,049.00
-
+
Features
Specifications
Reviews
Product Q&A
Manuals
Shipping Crate Icon
Free Shipping Learn More
Free Shipping
*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.
Truck Icon
Free Lift Gate Learn More
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.
Truck Icon
Low Price Guarantee Learn More
Low Price Guarantee
Shop with Confidence knowing you have the Right system at the Right Price and shipped Right Away.

We strive to give our customers the best price and service possible. If you happen to find a better price on your product(s) up to 30 days after your purchase let us know and we will match the price of any online competitor.

Simply call our sales or customer service department at 866-631-6389 and one of our representatives will be happy to price match the product(s) for you.
Specification Highlights
    Condition
    New Learn More
    New
    This product is new and has never been used. It's in its original packaging, which has not been opened.
    Weight
    110.2 Pounds Learn More
    110.2 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 Line
    Greenstar
    Medium
    Hot Water
View More
Capacity (BTU/h)
Select Attribute
Features
View More

Features

Overview for Bosch Thermotechnology ZWB28-3

The Bosch greenstar boiler represents today's best efficiency technologies brought together in a single package. Astounding efficiency ratings can be achieved with the use of Bosch's condensing technology, squeezing every last BTU out of your home's gas supply. An included 3-speed Grundfos pump and a wide variety of pipe venting options allow the boiler to be installed in nearly any home imaginable. This boiler includes a domestic hot water coil, allowing the boiler to act as a tankless hot water heater as well as a hydronic boiler.
Specifications
View More

Specifications

General Information
Product Line
Greenstar
Medium Learn More
Medium
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.
Condensing
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.
Yes
Modulating/Staging Learn More
Modulating/Staging
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.
Modulating
Mount Type
Wall
Minimum Altitude
0 Feet
Maximum Altitude
4500 Feet
Includes Pump
Yes
Assembly Type
Packaged
Gas Conversion Kit
Included
Performance
AFUE Learn More
AFUE
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.
95 %
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.
100800 BTU
Minimum Input Capacity
34600 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.
89400 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.
79000 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.
Yes
Turndown Ratio
5:1
Electrical Data
Phase
1
Frequency
60 Hz
Dimensions
Flue Connection Size
3 Inches
Gas Connection Size
3/4 Inch
Cold Water Inlet
3/4 Inch
Hot Water Outlet
3/4 Inch
Supply Connection
1 Inch
Return Connection
1 Inch
Product Height
33 1/2 Inches
Product Width
17 19/48 Inches
Product Depth
13 43/48 Inches
Product Weight
110.2 Pounds
Shipping Weight
118 Pounds
Certifications
Country of Origin
United States
CSA Listed
Yes
ASME Certified
Yes
AHRI Certified
Yes
AHRI Reference Number
4444522
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
5 Years
Heat Exchanger Warranty
Limited Lifetime Years
Reviews
View More

Reviews

Do You Own This Product?

Give us your opinion on this product and help any future buyer's make an informed decision.

Product Q&A
View More

Product Q&A

Be the first to ask a question.

Whether it's a general or technical question ACWholesalers can help. Our customer service team is backed by years of experience so you can have confidence knowing that you'll be getting an insightful response.

Manuals
View More
Share
×
Bosch 89,000 BTU 95% AFUE Condensing Boiler Greenstar NG/LP Combi 100
Bosch Thermotechnology ZWB28-3
+
Reset View
Loading
×
Customer Review Images
Loading
Scroll Up ArrowTo Top