Meeting All of Your Comfort Needs with a Range of HVAC Products

There’s a reason Andrew DiPietro’s Climate Zone team are the go-to heating and cooling experts in Haverhill, MA. Regardless of your home comfort need, we have an extensive range of HVAC products that, paired with our expert service, can help get your home back to optimal comfort in no time.

Whether you’ve decided that you’re tired of having a few rooms that are cold all the time and want to look in to a mini-split system or your furnace is older than dirt and you’ve realized it’s time to find its replacement, you’ve come to the right place.

Feel free to take a look at everything we carry, and if there’s anything you’d like clarification on, don’t hesitate to give the experts at Andrew DiPietro’s Climate Zone a call at 978-872-1190.

 GWB9-IH Boiler

GWB9-IH Boiler

High efficiency, gas-fired condensing water boiler

With an efficiency rating of 90% AFUE, the GW9-IH boiler allows you to stay comfortable during even the coldest weather, without worrying about energy costs 90% of fuel is converted into usable heat.

  • Cast-aluminum heat exchanger
  • ENERGY STAR® qualified
  • Sealed-combustion design
  • Easy integration, works with traditional radiator systems to provide precise heating comfort, regardless of outdoor temperatures
  • Compact and versatile allows easy installation in a basement, closet or alcove enclosure, and can be fueled by natural or LP gas
  • 15-year limited warranty on heat exchanger, 1-year limited warranty on remaining covered components


    Here are some of the top features of the GWB9-IH:

    • The cast-aluminum heat exchanger in the GWB9-IH transfers heat three times faster than conventional cast-iron exchangers. So you enjoy rapid warmth when you need it.
    • With a corrosion-resistant cast-aluminum heat exchanger, you can take comfort knowing the boiler will deliver dependable performance, season after season.
    • The GWB9-IH is designed to integrate easily into a traditional radiator system. Its compact design allows flexible installation inside your home for easy replacement of an older boiler with a higher efficiency model. 

Energy Efficiency

    • Cast-aluminum heat exchanger—transfers heat up to three times faster than traditional cast iron exchangers

    • This product has been designated as one of the Most Efficient ENERGY STAR certified products in 2020. Products that are recognized as the Most Efficient of ENERGY STAR in 2020 prevent greenhouse gas emissions by meeting rigorous energy efficiency performance levels set by the U.S. Environmental Protection Agency.

    • Electronic ignition control—monitors water temperature and maximizes efficiency by turning on the burner only when needed

Home Comfort

    • Sealed combustion—minimizes fan noise and provides quiet, soothing heat
    • Easy integration—low temperature supply and return water makes the unit compatible with existing radiant and underfloor systems


    • Durable cabinet—heavy-gauge steel cabinet and baked-on paint finish
    • Compact and versatile—allows easy installation in a basement, closet or alcove enclosure, and can be fueled by natural or LP* gas



*Shipped as natural gas; field convertible to LP.


  • AHRI Certified C
  • ASME
  • CSA Approved (C)(US)
  • CSA Certified Canada
  • CSA Design Certified
  • EnergyStar