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Harmonic Heating & Air Conditioning is here to take care of all your comfort system maintenance, repair and installation needs! Call us when you need comfort services!

Harmonic Heating & Air Conditioningstarstarstarstarstar5.0 / 5

216 Total Reviews /files//harmonic-logo-footer.png630-999-9008$10S187 Schoger Dr Suite #54, Naperville IL

Alpine 95% Condensing Gas Boiler

The Alpine utilizes a stainless steel heat exchanger' designed to extract maximum heat from the combustion process' along with a control system that is designed to enhance boiler efficiency as well as system efficiency. Intelligent features are wrapped in a sleek' modern appliance-like jacket' making the Alpine both attractive and smart.

  • 95% AFUE - High Efficiency
  • Multiple Sealed Combustion Venting Options
  • Fully Modulating Boiler Operating Controls
  • Stainless steel heat exchanger ASME-certified stainless steel heat exchanger is factory hydrotested to insure quality and reliability
  • Alpine Controls The Sage2 Control System has many features which maximize the efficiency and comfort of a heating system' while providing unmatched ease of use
  • Full color backlit touchscreen display
  • Full modulation with 5-to-1 turndown and adaptable firing rate output
  • Outdoor reset and warm weather shutdown
  • Off-season pump exercising
  • Domestic Hot Water Priority
MODELInput MBtuHOutput MBtuHAFUEDimensions
Water Content
ALP080B80.0 72.0 95.0 32.2x16.7x12.6 0.00 137
ALP105B105.0 96.0 95.0 32.2x16.7x14 0.00 155
ALP150B150.0 136.0 95.0 32.2x16.7x19.4 0.00 182
ALP210B210.0 294.0 95.0 32.2x16.7x23.9 0.00 206
ALP285B285.0 262.0 95.0 46.4x16.7x21.7 0.00 256
ALP399399.0 377.0 94.0 46.4x16.7x.928 0.00 304

Warranty Information

  • Heat Exchanger for 144 months - Limited 12 Years
  • All Parts for 36 months - With Prompt online Registration
  • Limited Labor for 36 months - With Prompt Online Registration

Available Documents


We customize your comfort by making your home smarter, healthier and more efficient. Your peace of mind is as important to us as your comfort.

That's why every product us backed by warranties as robust and dependable as the products themselves.

Every piece of heating & cooling equipment is eligible for a 12-Year Parts Warranty, when you join the "Rock*Star Maintenance Program".

All other products are eligible for the 12-Year Parts Warranty.

Ask for details, terms, and conditions. All product warranties are registered by Harmonic within 30 days of purchase.

on all equipment repairs, indoor air quality & comfort items

Including humidifiers, air filters, air cleaners, thermostats and more! 12 year parts and labor warranty requires joining Rock*Star Maintenance Program. Ask for details, terms, and conditions.

The "Exclusive 12-year Parts & Labor Warranty" covers parts and labor cost from the time of purchase. "Exclusive 12-year Parts & Labor Warranty" requires annual maintenance to be performed by Harmonic Heating & Air Conditioning beginning immediately from the time of purchase. Maintenance must be performed annually during the initial 12-year coverage term in order to uphold warranty status. If annual maintenance is missed or not performed by Harmonic Heating & Air Conditioning, the "Exclusive 12-year Parts & Labor Warranty" becomes void immediately. Warranty coverage defaults to a 10 year part warranty and a 2 year labor warranty from the time of purchase. Warranty is registered to the purchaser and is not transferable.


when you purchase a Furnace or Air Conditioner from Harmonic!