MA LICENSE #10523  

Navien - America Products

D.M. Plumbing
 & Heating

Belmont, MA 02478

E-mail Us 

Emergency Service





Weil-McLAIN - Ultra


Weil-McLain Boilers
Service & Support   617-592-2694

D.M. Plumbing offers premiere service and support for Ultra Series products by Weil-McLain.

Here's what we offer in Weil-McLain products, service, and support:

  • A complete inventory of all parts on hand

  • Service that covers New England

  • Over 30 years experience in plumbing and heating

  • Start up service

Call for more information:  617-592-2694 
or E-mail:  Jimmy Manolis

Weil-McLain start-up includes checking installation for:

  • Check

  • Venting

  • Wiring

  • Condensate Piping

  • Gas Piping

  • Primary, Secondary Piping

  • Adjust Vision I outdoor reset (if applicable)

  • Adjust Set Points

  • Adjust CO, CO2 to within factory specifications

  • Fire Boiler

  • Guarantee Boiler for 1 year

Start-up charge - $275
Boilers over 300,000 BTU starting at $450


  Weil-McLain service includes:

  • Opening and cleaning heat exchanger

  • Flushing condensate line

  • Checking all parts for wear

  • Downloading newest parameters

  • Check Fault History

  • Check Operating History

  • Adjusting CO, CO2 to within factory specifications

  • Service guaranteed for 2 years for natural gas, 1.5 years for liquid propane gas and 1 year for commercial.

  • If the boiler fails for no other reason other than the service within the warranty period from the original date of service, we will come back and service the boiler for free.

  • We do not guarantee failures caused by parts failures and improper installation issues.

Service contracts available.

Residential natural gas boilers service guaranteed for 2 years

Residential LP boilers service guaranteed for 1Ĺ years

Commercial natural gas boilers and LP boilers service guaranteed for 1 year

Replacement parts if necessary with installation will be extra charge.


Single service is $450

Two or more units serviced at one time are $375 per unit.

Boilers over 350,000 BTU service starting at $550.

Multiple boiler service discounts available.

RATES for 97+ and GV90+ BOILERS

Single service is $400

Two or more units serviced at one time are $325 per unit.

Boilers over 350,000 BTU service starting at $450.

Multiple boiler service discounts available.

Additional trip charge, PLUS materials
 will be added to all work orders.

D.M. Plumbing also recommends and installs Weil-McLain indirect fired water heaters.  These Weil-McLain water heaters have these key features:

  • 316L Stainless Steel tank welded with "TIG and Plasma" technology coil tank

  • Temperature and pressure relief valve standard equipment

  • Thermostat connections already installed for quick and easy wiring

  • All connections including boiler supply andAqua Plus Indirect Fired Water Heaters return, domestic water and domestic recirculation are on the side of the tank

  • Magnesium Anode installed in all tanks

  • Inspection port on every tank located near the bottom of the tank

  • Exceptional "R Value" with 2" of dense foam insulation

  • Adjustable feet for uneven floors

  • Available in Gold and Pewter colors


For commercial boiler applications that require energy efficiency and longevity, Weil-McLain offers a collection of oil and gas boilers and combination oil/gas boilers that combine the benefits of both fuel sources.  Click here to read more......

ULTRA Commercial
 Gas Boiler

  • 93.9% Thermal Efficiency

  • 94% Combustion Efficiency

  • CSD-1 Compliant is Standard

  • Lightweight and Requires Minimal Clearance

  • Fast & Easy Out of the Box Installation

  • Low NOx Certified

  • PVC Venting for Direct Vent and Direct Exhaust

  • Compact Design Packaged Boiler

  • 20% - 100% Modulation

  • U-Control Flexibility

Weil-McLain is a leading designer, manufacturer and marketer of gas- and oil-fired hot water and steam boilers for space heating in residential, commercial and institutional buildings


Weil-McLain - residential boilers.  Click here to read more....

  • Gas fired water boiler with cast aluminum heat exchanger
  • Venturi mixing body mixes air and gas providing higher efficiency
  • Designed to operate in low temperature condensing applications
  • Outdoor reset and domestic hot water priority standard
  • Negative regulated gas valve precisely delivers gas to the boiler
  • U-Control gives you the power for easy set-up and maintenance
  • Modulates with 5 to 1 turn-down ratio capability
  • Variable speed motor matches combustion output to heating needs
  • High grade stainless steel burner features quiet operation, high efficiency, and cleaner combustion for low NOx applications

*** NOTICE - See AHRI Press Release. AHRI, the independent ratings association for the Heating and Cooling industry, is in the process of modifying their industry testing parameters for residential modulating condensing boilers sold in North America. Weil-McLain has temporarily defaulted their AFUE ratings to 90% (as requested by AHRI) until such time that a new rating and test procedure can be established and approved by the Department of Energy. We anticipate new published ratings early in 2013. Please note that this does not affect any changes or reliability of the products themselves, only the published ratings.

Click Here for AHRIís full Press Release


WM97+ Wall Mount Gas Boiler - Residential

WM97+ - Gas Fired Residential Boiler

  • 70,000; 110,000 & 155,000 BTU input models at 97% AFUE(***) rating
  • Stylish, compact wall mount design for easy installation, service and maintenance
  • Unique condensing stainless steel fire tube heat exchanger design
  • Built-in boiler circulator
  • Built-in primary/secondary piping option
  • Pre-wired terminal strip for quick and easy electrical connections
  • Convenient indirect-fired water heater connection
  • Capable to vent with PVC, PP and SS up to 100'
  • Multi-color LCD display with text - no codes

GV 90+ Gas Residential Boiler

GV 90+ Gas Residential Boiler

  • 91% AFUE efficient
  • Durable cast iron primary heat exchanger
  • Condensing stainless steel secondary heat exchanger
  • Unique 7 pass heat exchanger design maximizes heat transfer
  • Vents with PVC
  • Multiple vention options (direct vent, direct exhaust, concentric)
  • Easy conversion to propane (kit included)

Call:  (617) 592-2694
for more Info on
Commercial Boilers

Serving Massachusetts towns of: Arlington, Auburndale, Bedford, Belmont, Brookline, Burlington, Cambridge, Chestnut Hill, Concord, Lincoln, Newton, Somerville, Waban, Waltham, Weston, Winchester & all of New England, including New Hampshire


MA License No. 10523  ®  Pipe Fitter License No. 092223  ® New Hampshire Gas Fitters License No. GFE0802670






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D.M. Plumbing & Heating Co.
301 Channing Road, Belmont, Massachusetts 02478    (617) 489-5567
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