WM97+ 70 CT - 57,000 BTU Output Wall Mounted Boiler (NG or LP) Zoom

WM97+ 70 CT - 57,000 BTU Output Wall Mounted Boiler (NG or LP)


Brand: Weil Mclain

Weil Mclain
Qty Price
/ each
Non-Stock ItemAllow 2-3 Weeks to Ship Out



Fuel Type: Natural Gas
BTU Input: 70000
DOE Rating:
IBR Rating:
Features: Condensing
Wall Mounted
Vent Type: Direct Vent
System Type: Hydronic (Water)

Description for Weil Mclain 383-700-003

Note: Product Title reflects this boiler's IBR Net Output Rating

Partner the WM97+ with the new Aqua Logic Indirect Fired Water Heater for a complete system. WM97+ CT wall mount gas boilers are loaded with a winning combination of features.


  • Propane Conversion Orifice included for LP Gas Applications
  • 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
  • CT - Condensing Technology - 5 to 1 turndown ratio
  • Aqua Logic indirect fired water heater compatible

    PLEASE NOTE: The product weighs 136 lbs. and may require the use of a
    lift gate.
    If you do require a lift gate at your delivery, you'll have the option to add this FREE of charge when you checkout.
  • WM97+ 70 CT - 57,000 BTU Output Wall Mounted Boiler (NG or LP)


    by PowerReviews
    Weil MclainWM97+ 57,000 BTU Wall Mounted Boiler (NG or LP)

    (based on 2 reviews)

    Ratings Distribution

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    Reviewed by 2 customers

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    Just what I was looking for

    By NathanVt

    from Jericho, Vt

    Verified Buyer

    Comments about WM97+ 70 CT - 57,000 BTU Output Wall Mounted Boiler (NG or LP):

    WM97+ 70 boiler is being used to heat my above the subfloor radiant heat. I went through and adjusted all of the settings manually to my specifications. The boiler was hung and set up extremely easily, I utilized the internal primary/secondary and the expansion tank. The stainless steel heat exchanger was a must for a condensing boiler. It modulates extremely well and is quiet.
    If I did not have to plumb around the boiler, I could have installed, setup, and ran the boiler inside a couple hours.
    Two recommendations are to move the boiler return/supply piping in front of or behind the venting to make piping to the left of the boiler easier, as the Ultra model looks. And my manual with not stapled together properly so I had to move a few pages around.
    I am going to add onto the system in the next few weeks and will be using the boiler controls to run a separate zone on top of the zone valve control, the ability to have 3 zones on the boiler will make this work well.
    The weather has been warm, so the boiler has not ran for a long period of time, but the modulation has been working great for this weather.

    • Was this a gift?:
    • No

    (1 of 1 customers found this review helpful)


    The BEST - Simple Quiet and Efficient


    from Anchorage AK

    Verified Reviewer

    Comments about WM97+ 57,000 BTU Wall Mounted Boiler (NG or LP):

    Very simple to install and very quiet operation. The boiler is one of the best brands on the market and pexsupply.com delivers exceptional service.

    WM97+ 70 takes two people 10 minutes to hang on the wall and one person three days to install the new pipe, fittings and wiring. Simply turn on the boiler and five minutes later its producing heat.

    NOTE: I am not a plumber or heating person and this boiler was very simple to install and operate. make sure to READ the manuals and do your homework for any plumbing and heating work.

    Make sure to properly calculate the heat gain/loss of your home or area. I recommend a blower door test by a professional to get the BTU needs of your home.

    • Was this a gift?:
    • No

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    Q&A: Ask the Questions, share answers

    Do you have questions about this product?

    Get answers from real customers and in-house experts with AnswerBox.

    4 Questions | 4 Answers
    Displaying questions 1-4
    • WM97+ 70 CT - 57,000 BTU Output Wall Mounted Boiler (NG or LP)


      Can you vent it up the chimney stack?
      Asked on 10/14/2014 by Newbie from Solon, Ohio

      1 answer

    • WM97+ 70 CT - 57,000 BTU Output Wall Mounted Boiler (NG or LP)


      Do you carry the companion water heater for these?
      Asked on 10/22/2013 by Bobby from Anchorage, AK

      1 answer

    • WM97+ 57,000 BTU Wall Mounted Boiler (NG or LP)


      do you have to be a heating contractor to buy this boiler?
      Asked on 10/30/2012 by r

      1 answer



        We sell boilers to anyone, but we would recommend that you have a heating contractor perform the installation if you do not have relevant experience.

        Answered on 11/7/2012 by PexSupply Staff from NY
    • WM97+ 57,000 BTU Wall Mounted Boiler (NG or LP)


      how do i order this for LP?
      Asked on 6/11/2012 by bob from missouri

      1 answer



        This boiler comes configured for use with natural gas fuel, but the parts needed to convert it to propane are included.

        Answered on 6/12/2012 by PexSupply Staff from NY
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