Aqua-Plus 35 Pewter Indirect Water Heater Zoom

Aqua-Plus 35 Pewter Indirect Water Heater


Brand: Weil Mclain

Weil Mclain
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/ each
In Stock! Ships in 24-48 Hours
(3 Available)



BTU Input: 170000
Color: Pewter
Capacity (Gallons): 31
Capacity (Domestic): 29.6 Gallons
Capacity (Boiler): 1.6 Gallons
DHW Operating Temp: 160°F
Recommended Flow Rate: 8 GPM
Head Loss-Boiler Side (ft.): 2'
Height (Inches): 36.375
Diameter (Inches): 21-7/8"
Weight (lbs): 94 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

Description for Weil Mclain 633-500-000

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

PLEASE NOTE: The product weighs 94 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.

Aqua-Plus 35 Pewter Indirect Water Heater

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  • Aqua-Plus 35 Pewter Indirect Water Heater


    We are replacing a Weil-Mclain Gold Plus 30 with a Weil-Mclain Aqua-Plus 35, SKU 633-500-000 (just ordered on your site). The Aqua-Plus 35 has a connection for a Domestic water recirulation line (5 on the diagram) which the old heater did not. Is this connection required?
    Asked on 10/21/2013 by William from Brooklyn, NY

    1 answer



      No, use of this connection is optional.

      Answered on 10/21/2013 by PexSupply Staff from NY
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