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  • Weil-McLain Aqua-Plus 45 Pewter Indirect Water Heater 633-500-001

    Brand & Part #: Weil-McLain 633500001 SKU #: wei633500001

    UPC #: 672619189010

    Availability : In stock

    Only 2 left

    Regular Price: Was: $1,396.00


    You Save $436.02 (31%)

    Helpful Information



    Aqua-Plus Indirect Fired Water Heater


    • 316L stainless steel tank welded with "TIG and Plasma" technology coil tank. Higher tolerance against corrosion vs. carbon steel tanks
    • Temperature and pressure relief valve standard equipment
    • Higher output over 1" diameter 304L stainless steel heat exchanger with superior 1st hour rating and recovery. Large diameter heat exchanger allows for low pressure drop
    • Thermostat connection are already installed for quick and easy wiring
    • All connections including boiler supply and return, domestic water and domestic recirculation are on the side of the tank
    • Magnesium anode installed in all tanks
    • Inspection port on every tank is located near the bottom of the tank
    • Exceptional "R Value" with 2" dense foam insulation
    • Adjustable feet for uneven floors
    • Limited lifetime warranty on tank


    BTU Input: 190000
    Color: Pewter
    Capacity (Gallons): 42 Gallon
    Capacity (Domestic): 39.9 Gallons
    Capacity (Boiler): 1.9 Gallons
    DHW Operating Temp: 160°F
    Recommended Flow Rate: 8 GPM
    Head Loss-Boiler Side (ft.): 3.3'
    Height (Inches): 46-1/4"
    Diameter (Inches): 21-7/8"
    Weight (lbs): 111 lbs
    DHW Connection: 3/4" NPT
    Boiler Connection: 1" NPT
    Material: Stainless Steel
    Working Pressure (Tank): 150 psi
    Working Pressure (Coil): 145 psi
    Warranty: Limited Lifetime for Tank Assembly/ 1-year Parts


    Additional Info

    Additional Info

    MPN 633500001
    Brands Weil-McLain
    Fuel Type Natural Gas
    Availability Available to Ship Immediately
    Special Shipping Group boilerover


    Customer Reviews (2)

    Poor quality and hidden maintenance costsReview by Thepropertymanagementguru
    The key here is the "sacrificial" magnesium anode. Why was it added to the latest generation of Weil-Mclain Indirect fired water heaters? I suspect it was added because their earlier tanks were probably rotting out all over the place. So I view this as a stop gap measure instead of increasing the quality of their tanks.

    Be prepared to drain down your tank at least every six months to inspect the anode for decay. They do not provide a picture of a decayed anode in their manual so you will just have to guess as to how much magnesium is left. This can be confusing because the bar that holds the anode may appear to be remaining magnesium. The manual does state that the anode be inspected by a "Qualified Service Technician", so maybe the technician knows how to gauge how much magnesium is left. If that's the case be prepared to pay a technician to do it annually, or every six months depending on your water chemistry. Also be prepared to pay to have your water tested so you know if you should have it inspected every six months or every year.

    Also be weary of problematic thermostats. Three (3) failures in six months. A defect they said, yet they just kept failing. Very disconcerting when your burner short cycles for hours on end due to intermittent cycling from the t-stat.

    Instead of dealing with the above issues research the HTP Superstor anode, no additional costs. Highly recommended by most heating contractors. (Posted on 8/20/2014)
    what will the future bringReview by concerned
    I don't know much about furnaces and hot water heaters. I'm concerned about the Weil McLain equipment now in my basement.
    I had my 50 year old furnace replaced about 8 years ago. it included a gold series gas fired furnace and indirect water heater. The first water heater started leaking about 2 years ago and was replaced with an Aqua Plus.
    The thermostat just went on the water heater and cost me almost $300 to get replaced. The 'new' Weil McLain equipment is costing me more than my old furnace.
    I am concerned about what future repairs are coming my way. Why can't you buy equipment that lasts? (Posted on 8/7/2014)
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