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  • MAH/MAC 100 - 150

    MAH/MAC 100 - 150

  • MAH/MAC 100 - 150

    MAH/MAC 100 - 150

  • MAH/MAC 125 - 150 Interior

    MAH/MAC 125 - 150 Interior

  • 115/125/150 Manifold

    115/125/150 Manifold

  • MAH/MAC 165-205

    MAH/MAC 165-205

  • MAH/MAC 165-205 Interior

    MAH/MAC 165-205 Interior

  • MAC with Manifold

    MAC with Manifold

  • 165 Manifold

    165 Manifold

  • 205 Manifold

    205 Manifold

  • MAC 115 interior

MAC/MAH High Efficiency Wall Mounted Modulating Condensing Boiler

MAC/MAH

'THE INTELLIGENT CONDENSING APPROACH'

COMBI & CENTRAL HEATING MODELS

Boiler with AI [Artificial Intelligence] Control Technology

• Automatically sets up the boiler during initial startup
• Recognizes Natural or LP Gas, no conversion kit required
• Continuously monitors combustion and adjusts gas and air flow to optimize combustion and fuel savings
• User Interface displays temperature status symbols and self diagnostic

95% AFUE, ENERGY STAR® Certified

Primary/Secondary LABOR SAVER™ Manifold Included

FREE 2-YEAR PARTS & LABOR*

*Unit must be registered within 60 days from the date of original installation. All terms of the Trinity Extended Service Agreement apply.

 

 

 

Features

95% AFUE efficiency, ENERGY STAR® Certified

 [AI] Control Technology, Auto Commissioning and Continuous Calibration functions optimize combustion and result in lower fuel bills. Control Panel features a backlit digital display that indicates boiler status, temperature, and diagnostics.

6.9:1 Turndown Modulation Ratio in DHW Mode (MAC-115)

7:1 Turndown Modulation Ratio in DHW Mode (MAC-150, MAC-205)

5.6:1 Turndown Modulation Ratio in Heating Mode (MAH-100, MAC-115)

5.7:1 Turndown Modulation Ratio in Heating Mode (MAH-125, MAC-150)

5.5:1 Turndown Modulation Ratio in Heating Mode (MAH-165, MAC-205)

Flow Rate in DHW Mode:

  • 5.0 GPM @ 70° F rise (MAC-205) 
  • 3.5 GPM @ 70° F rise (MAC-150) 
  • 2.5 GPM @ 70° F rise (MAC-115) 

Primary/Secondary LABOR SAVER™ Manifold Included

Heat Exchanger: 316L Stainless Steel Heat Exchanger and Burner. MAC-205, MAC-150 and MAC-115 are also equipped with a Stainless Steel Brazed Plate Heat Exchanger.

Additional Features: Assembled Boiler with Jacket, Induced Draft Fan, High limit sensors, 30psi Relief Valve, Low Water Pressure Switch, Temperature/Pressure Gauge.

Built in load matching Pump contributes to savings in electrical usage

Options

Outdoor Temperature Sensor, Indirect Tank Sensor, Floor Stand Kit

Our AI control technology is programmed to recognize an Indirect Tank. H2O Indirect Hot Water Heaters are available in 30 to 115 gallon capacities and feature 316L stainless steel construction and top connections for an easy installation.

Installation

(See Installation, Operation and Maintenance Manual for complete instructions)

Documents / Resources

Current Documents
Archived Documents
Videos

Brochure

MAC / MAH Homeowner Brochure Rev. 09-15-21
MAC / MAH Sell Sheet Rev. 09-15-21
MAH Multiple Boiler Packages Brochure

User Manual

User Manual Rev. A - French
Wall Hung AI Boiler User Manual Rev. A

Parts Lists

75-205 Wall hung AI Boiler Parts List Rev. A
75-205 Wall Hung AI Boiler Parts List Rev. A - French
MAC / MAH Parts Bag Reference Rev F
MAC/MAH Parts List Rev. A

Warranty

MAC/MAH/MACF/MAHF Condensing Boiler Warranty Rev. E

Technical Bulletin

20112019 MAC(F) - MAH(F) Gasket Tech Bulletin
Flooded HVAC Equipment Bulletin
Low Water Cut Off Tech Bulletin

BIM Drawing Files

MAC Drawing

Specification/Performance

MAC-115 Spec Sheet Rev. C
MAC-150 Spec Sheet Rev. F
MAC-205 Spec Sheet Rev. E
MAH-100 Spec Sheet Rev. B
MAH-125 Spec Sheet Rev. F
MAH-165 Spec Sheet Rev. E

Submittal

MAC-115 Submittal Rev. C
MAC-150 Submittal Rev. F
MAC-205 Submittal Rev. F
MAH-100 Submittal Rev. B
MAH-125 Submittal Rev. F
MAH-165 Submittal Rev. F

Case Studies

MAC-205 Utica Zoo Case Study

Boiler Manuals

MAC/MAH 75-205 Boiler Manuals Rev. A
MAC/MAH IOM Rev. A - French

Engineering Documents / Resources

115 Combi Wiring Diagram Rev. A
Boiler Floor Stand Instructions Rev. A
MAC/MAH Tax Certification Statement Rev. F
Wall Hung AI Boiler Application Guide Rev. Q

Kit Instruction

Boiler Floor Stand Kit Instructions Rev. D

Other

DOE Tax Credit Table 2022 / 2023
IRS Form 5695 Residential Energy Credits
IRS Home Energy Tax Credits Infographic
Utica Boilers Tax Credit Certificate - Boilers 2023

Brochure

MAC / MAH Brochure Rev. 2-2020
MAC Brochure, Rev. 1/17
MAC Brochure, Rev. 1/18
MAC Brochure, Rev. 4/16
MAC Brochure, Rev. 6/16
MAC Brochure, Rev. 7/16
MAC Brochure, Rev. 8/16
MAC Brochure, Rev. 9/17
MAC-115 and MAH-100 Brochure Rev. 06-29-21
MAC/MAH Brochure, Rev. 2/2019

User Manual

AI Boilers 115-205 User Manual Rev. A
MAC/MAH User Manual French, Rev. A
MAC/MAH User Manual Rev. A - French
MAC/MAH User Manual, Rev. A
MAC/MAH/MACF/MAHF User Manual Rev. B
MAC/MAH/MACF/MAHF User Manual Rev. B - French
Wall Hung AI Boiler User Manual Rev. A

Installation & Operation Manual

MAC Installation & Operation Manual, Rev D
MAC Installation & Operation Manual, Rev E
MAC Installation & Operation Manual, Rev. 4/16
MAC/MAH Installation & Operation Manual, Rev F
MAC/MAH IOM Rev D

Parts Lists

MAC / MAH Parts Bag Reference Rev D
MAC Parts List, Rev. 5/16
MAC Parts List, Rev. 5/3/16
MAC Parts List, Rev. E
MAC Parts List, Rev. G
MAC/MAH Parts List 115-205 Rev. A
MAC/MAH Parts List 115-205 Rev. A - French
MAC/MAH Parts List 75-205 Rev. A - French
MAC/MAH Parts List French, Rev. G
MAC/MAH Parts List Rev. A
MAC/MAH Parts List Rev. B
MAC/MAH Parts List Rev. H
MAC/MAH Parts List Rev. H - French
MAC/MAH Parts List Rev. J - French
MAC/MAH Parts List, Rev. G
MAC/MAH Parts List, Rev. H
MAC/MAH Parts List, Rev. J
Utica Boilers Venting Products 09-29-21

Warranty

MAC Condensing Boiler Warranty, Rev B
MAC Condensing Boiler Warranty, Rev C
MAC Condensing Boiler Warranty, Rev. 4/16
MAC/MAH Condensing Boiler Warranty, Rev D

Specification/Performance

MAC-115 Spec Sheet Rev. A
MAC-115 Spec Sheet Rev. B
MAC-150 Spec Sheet Rev. B
MAC-150 Spec Sheet Rev. C
MAC-150 Spec Sheet Rev. E
MAC-205 Spec Sheet
MAC-205 Spec Sheet Rev. B
MAC-205 Spec Sheet Rev. C
MAC-205 Spec Sheet Rev. D
MAH-100 Spec Sheet Rev. A
MAH-125 Spec Sheet Rev. B
MAH-125 Spec Sheet Rev. C
MAH-125 Spec Sheet Rev. E
MAH-165 Spec Sheet Rev. A
MAH-165 Spec Sheet Rev. C
MAH-165 Spec Sheet Rev. D
Utica Boilers Coaxial Vent Spec & Sub Rev. A
Utica Boilers Twin Pipe Vent Spec & Sub Rev. A

Submittal

MAC-115 Submittal Rev. A
MAC-115 Submittal Rev. B
MAC-150 Submittal Rev. B
MAC-150 Submittal Rev. C
MAC-150 Submittal Rev. E
MAC-205 Submittal
MAC-205 Submittal Rev. C
MAC-205 Submittal Rev. D
MAC-205 Submittal Rev. E
MAH-100 Submittal Rev. A
MAH-125 Submittal Rev. B
MAH-125 Submittal Rev. C
MAH-125 Submittal Rev. D
MAH-125 Submittal Rev. E
MAH-165 Submittal Rev A
MAH-165 Submittal Rev. C
MAH-165 Submittal Rev. D
MAH-165 Submittal Rev. E

Boiler Manuals

MAC/MAH Boiler Manual 100-205 Rev. A
MAC/MAH Boiler Manual 115-205 Rev. A
MAC/MAH Boiler Manual Rev. F
MAC/MAH Boiler Manual Rev. G
MAC/MAH Boiler Manuals Rev. B
MAC/MAH Boiler Manuals, Rev B
MAC/MAH Boiler Manuals, Rev C
MAC/MAH IOM Rev. A - French

Engineering Documents / Resources

AI Boilers 115-205 Application Guide Rev. N
Artificially Intelligent, Condensing Boiler Application Guide, Rev. 5/16
Condensing Boiler Application Guide, Rev. 9/16
MAC-150 Spec Sheet Rev. A
MAC-150 Submittal Rev. A
MAC/MAH Condensing Boiler Application Guide, Rev. E
MAH-125 Spec Sheet Rev. A
MAH-125 Submittal Rev. A
Wall Hung AI Boiler Application Guide Rev. P

Parts Manual

MAC/MAH Parts List French, Rev. C
MAC/MAH Parts List, Rev. C

Product Testimonials

  • Quality, support

    Barry Collette
    West Paris, ME

  • Great product.  Very quiet and reliable.  Good tech support.

    Charles Arnett
    Belpre, OH

  • It's super compact.  The unit is so quiet but my only concern was the water run off, but I muffled that.

    Scott Strother
    Newark, NJ

  • Ease of installation and performance would be the two main features I would share. I also like the quiet operation of the unit. I live in CT, and installation occurred on this winters coldest day. The water inlet temperature is very cold this time of year, and but the on demand DHW comes on pretty quickly and fills a tub super hot.

    Seweryn Borecki
    West Hartford, CT

  • Everything is a optional kit - cumbersome installation.  I have no time for these games.  Condensate kit?  Like it's an option!  Every boiler needs one.  Venting... Really!  I can only use your proprietary venting, what do I do when I'm miles from the whole sale house and someone misses a fitting, oh wait does not matter they don't even stock it.  Now my customer has no heat and its 4 below.  I can not install a product that let's me and my former customer down.  You missed the mark 100% on this one!

    Mike Hoheisel
    Royalton, MN

  • Very clean, doesn't take up much room and works great!

    Nicole Talaia
    Chicopee, MA

  • This boiler installed very quickly and easy.

    Chris Ghosio
    Medford, NY

  • I have recommended this product and another install is in the works.

    Gibney Builders
    Altoona, PA

  • I would recommend it and have.  It is so nice to have on demand hot water and there is no noise.

    Patricia Gardner
    Essex, NY

  • Great boiler very efficient and definitely quiet. Easy to install.

    Ty Kovalewski
    Lafayette, NY

  • The overall dimenseions, efficiency, and ease of use is great. After speaking to many installers/ HVAC technicians, Utica was the most frequently suggested brand to purchase. Low maintenance, quality of construction, and high quality components were the main reasons for the recommendations. 

    Jason Matthews
    Wilbraham, MA

  • Yes I would recommend this product because it is small, compact, quiet and easy to install.

    Charlie Cashin
    Boxford, MA

  • Yes I would recomment this product.  Unit is very quiet, east to install, and a great value compared to other brands.

    Red Riehle
    Old Forge, NY

  • I would recomment this product.  The product is very efficient and works great.  

    I would strongly recommend this product to anyone in need of replacing existing boiler/water heater or just upgrading for efficiency purposes.

    Jorge Morales
    Lawrence, MA

  • Works well.  

    On the Mac 150 if they had the hot and cold inlets off set from the boiler inlet and out let it would ease the install, now they are all inline.

    Gary Adams
    Lafayette, NY

  • Yes I would recomment this product to a friend.  Dependable, easy to install, and helpful tech support.  

    Edward Hosmer
    Belchertown, MA

  • Saving money and energy with your product.

    Spring brook fuel and ice should NOT be installing your product no license and don’t know what they are doing. Without your rep my unit would not be working.

    New Britain, CT

  • This was an easy installation and is a good boiler for larger homes.

    I had a hard time with the venting of this boiler. The supply house didn't have a good knowledge of this product. I was told I could vent it with 2" pipe. After talking to the factory service and engineering department I was still unsure of how to vent it. Help finaly came when I talked to Howard Dyson and Gary Alex. I ended up venting the boiler with 2" cpvc on the exhaust side and pvc on the intake.

    East Haddam, CT

  • I highly recommend Utica Boilers. Built in USA. Rep for company is very helpful

    Scott
    New Britain. CT

  • The 40 year old boiler we had never gave us a problem but replaced to be more efficient

    James
    Salisbury, MA

  • Easy installation and user friendly

    Paul
    East Longmeadow, MA

  • Looks good, runs good. Having some issues with the hot water not mixing properly all the time. Install company not sure what is causing it.

    Tim
    Becket, MA

  • Nice compact unit. Longer horizontal combi venting runs are difficult.

    Roy
    Quarryville, PA

  • Easy install customer support was fast and easy

    Ray
    Waltham, MA

  • Very efficient and fairly easy to install. Had no issues upon startup

    Bob
    Lincoln Park, NJ

  • Every contractor I talked to said this is the best boiler they have installed!

    John
    Verona, NY

  • I'll recommend it to my customers. It's made nice. Easy to work on it.

    Zigzag Industrial
    New Milford, NJ

  • Yes, great space saver and love the unlimited hot water.

    Homeowner
    Middleville, MI