Contact a PRO

    Comment

    I am seeking

      Perfect day to start

      Get a free consultation with an HVAC specialist

      popup-homedepot_img
      ×
      Special Offer

        form-costco-img
        ×
        Perfect Air with The Ultimate System
        Receive a Lennox rebate up to $1,800

          ATTENTION: We’ve changed how we do business, to safely serve your home. Please read more about our COVID-19 Response.
          image 100

          Combi Gas Boiler Bosch Capacity 150,000 BTU

          • Rating
          • Capacity 150000
          • AFUE 95%
          • CSA Listed Yes
          • ASME Certified Yes
          • AHRI Certified Yes
          • Warranty Up to 10 years on parts

          VIEW FULL PRODUCT SPECIFICATIONS ↓

          Call Us

          We Are Trusted Dealer

          Our promotions

          • SPECIAL FINANCING

            SPECIAL FINANCING

            No payments for 6 months*

          • PLUS HUGE REBATES

            PLUS HUGE REBATES

            Up to $1,600*

          • WARRANTY

            WARRANTY

            Up to 10 years*

          Bosch Thermotechnology

          The Bosch Group has been a leading global supplier of technology and services in the areas of Automotive, Industrial Technology, Consumer Goods, and Building Technology for over 100 years. The company was founded in Stuttgart, Germany, in 1886 and today has more than 300 subsidiaries in over 150 countries.

          Environmental stewardship inspires and drives Bosch product development. Today, Bosch is a leader in the development of next-generation technologies that deliver improved performance and efficiency while conserving our natural resources. In the area of sustainable mobility, we’re helping reduce the fuel consumption and CO2 emissions of new vehicles. Energy efficiency and environmental protection are also shaping our Industrial Technology, Consumer Goods, and Building Technology products. Green technologies, such as gas tankless water heaters, heat pump electric water heaters, photovoltaics, wind power, and geothermal systems are perhaps the best examples of smart technologies growing in demand and shaping the future of Bosch.

          Play Video Watch the video

          ABOUT PRODUCT

          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.

          Condensing Technology Improves Efficiency

          • The ZWB42-3 is a condensing boiler, using the leftover energy in the boiler’s flue exhaust to further heat your home. Keep your home warmer for less energy cost!

          Included DHW Coil

          • This Bosch greenstar boiler contains an internal domestic hot water coil. This allows the boiler to function as a tankless hot water heater as well as a hydronic water boiler.

          Fully Modulating Fan

          • The boiler includes a fully modulating fan to control the boiler’s burning rate, allowing optimum efficiency to be achieved during a wide variety of outdoor conditions.

          Small Size and Low Installation Clearances

          • Low installation clearances on all sides, wall mounting configuration, and small footprint translate into a boiler that can be installed almost anywhere.

          SPECIFICATION

          • Model ZWB42
          • Fuel Type Natural Gas
          • Combustion Type Condensing
          • Vent Type Direct Vent
          • Modulating/Staging Modulating
          • Mount Type Wall
          • Minimum Altitude 0 Feet
          • Maximum Altitude 4500 Feet
          • Includes Pump Yes
          • AFUE 95%
          • Maximum Input Capacity 151600 BTU
          • Minimum Input Capacity 36000 BTU
          • DOE Heating Capacity 134400 BTU
          • Net I=B=R Capacity 117000 BTU
          • Ultra Low NOx Emissions Yes
          • Turndown Ratio 5:1
          • Phase 1
          • Frequency 60 Hz
          • 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
          • CSA Listed Yes
          • ASME Certified Yes
          • AHRI Certified Yes
          Combi Gas Boiler Bosch Capacity 150,000 BTU
          Combi Gas Boiler Bosch Capacity 150,000 BTU
          $99/month
          Buy now online
          *Product With Installation
          Frame-1924-1

          FAQ

          How do I choose the right size of central AC for my home?
          Various factors need to be considered such as
          • Specific region and climate in which you live
          • Orientation of your home (for example, if it faces west)
          • Size and age of your windows
          • Your home’s ventilation system and ductwork
          • Quality and quantity of your home’s insulation
          • Age of your home
          How does a new high efficiency AC will help me save energy bills?
          Choose ENERGY STAR® certified ACs
          ENERGY STAR certified central air conditioners have higher seasonal energy efficiency ratio (SEER) ratings and use less energy than conventional new models*. Our experts can help you choose an ENERGY STAR certified AC that’s right for your needs. Schedule a no-obligation, in-home consultation with a Home Comfort Advisor today.
          How long does an installation take? What time will they arrive? Do I need to be home for the installation?
          Every installation is different, and every project presents unique installation challenges, but we aim to have all installations completed in one day. Technicians will arrive at the prearranged agreed upon time and will keep you updated on the progress throughout the day. We always recommend that homeowners are present during installation, but if that’s not possible, we require someone over the age of 18 to be home during installation.
          Can I buy it online and install by myself?
          HVAC or Boiler installation requires electrical, gas and refrigerant knowledge as well as familiarity with local bylaws and building codes. Failure to properly install HVAC equipment can create safety concerns and performance issues as well as void manufacturer warranties. For those reasons, we always recommends professional installation.
          What Are Maintenance Needs of the Air Conditioner?
          Scheduling preventive maintenance is essential if you want to protect your investment in your air conditioner. Routine basic maintenance helps prevent problems from occurring and extends the life of your air conditioning unit.
          Along with your air conditioning installation, ask about the preventative maintenance service of your contractor. What is included, and what is the cost?
          When Can You Install My New Air Conditioner?
          There’s just one more thing to do. You should consider the best time to install your new air conditioner.
          If you have an existing air conditioner that is not working and summer is approaching then you may want to get this done soon. Even if you have a functioning air conditioner, the installation process will mean you will be without air conditioning for at least some time. There will also be some disruption in your home while work is completed.
          Discuss your preferred installation timescale with your home comfort advisor. They will explain the process and work with you to keep disruption to a minimum.

          We are a Qualified HVAC Company

          We offer all kinds of services: buying, renting, installation, uninstallation, replacement, repair, maintenance and consultation. Only high-qualified licensed specialists. We sell you only what you need, no pitfalls.

            Contact a PRO

            Comment

            I am seeking

            Our HVAC Rental Programs

            Get Air Conditioner
            for less than $2/day

            Get deal

            Get Furnace
            for less than $2/day

            Get deal

            Get Tankless Water
            Heater for $2/day

            Get deal

            Get Water Heater
            for $1/day

            Get deal

            our rental promotions

            Take advantage of these great offers

            Get more information

            3 months free!

            Your order has been sent!
            +

            Leave your phone number and we will call you back soon!

              +

              Sumbit your Review