Comfort 55 Indirect Water Heater, 35.0 Gal

Triangle Tube

Brand: Triangle Tube

Mfr Part#: COMFORT55

Usually ships: within 3-5 business days
Qty Price
$935.95 / each & Free Shipping
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Comfort series indirect water heaters by Triangle Tube (ACV) feature an exclusive tank-in-tank heat exchanger design, with 1.5 - 2 times the heat transfer surface - allowing for high energy-efficiency and hot water recovery times of up to x3 times faster than traditional gas or electric tank water heaters. 1-1/2" polyurethane tank insulation ensures minimal stand-by heat loss. T&P relief valve included.


  • ACV exclusive tank-in-tank design;
  • Self-cleaning, maintenance-free heat exchanger with surface area 1.5 - 2 times larger than traditional coil;
  • Provides abundant hot water with a recovery rate of up to 3 times higher than conventional gas or electric water heater;
  • Average life span exceeds 20 years;
  • T&P valve included.

Technical Specifications:

  • Domestic Water Capacity (Gallons): 35.0;
  • Heat Exchanger Type: Tank-in-Tank;
  • Heating Water Capacity (Gallons): 20.0;
  • Domestic Water Connections: 3/4" NPT;
  • Boiler Connections: 1-1/4" NPT;
  • Min. Boiler Output (BTU/hr): 118,000;
  • Continuous Domestic Hot Water Flow @ 90°F Rise (Gallons/hr): 157.0;
  • 1st Hour Rating @ 90°F Rise (Gallons/hr): 185.0;
  • Max Boiler Side Pressure (psi): 45;
  • Max Domestic Water Pressure (psi): 150;
  • Insulation Thickness: 1-1/2";
  • Dimensions (Diameter x Height): 20-5/8" x 55-1/4";
  • Empty Weight (lbs): 128.


10-year Limiter Warranty
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