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96% Stainless Steel Commercial Water Heaters
PG&E Test Report: Phoenix 96% Water Heater is Top Performer


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The side shot, modulating design of the Phoenix water heater proves far superior to the down shot, non-modulation design used by the rest of the condensing water heater industry.

Click on the topic listed to read more:

#1 in Durability The Right Size
#1 in Reliability Phoenix or Tankless?
Cost Competitive Phoenix Solar
Quiet Phoenix Residential
Easy to Service Who is HTP
The Era of the 80% Commercial Water Heater is Over A “Throw Away” mind set.Get over it.

Specify the Best:
The brand name water heaters are an easy default selection. Break the habit with the higher value choice.

#1 in Durability:
Stainless steel/cupronickel construction lasts far longer than coated steel construction which fails rapidly if acidic condensate is trapped. Load matching modulation leads to far less cycling and longer component life.

#1 in Reliability:
Again, Phoenix load matching modulation radically reduces component wear associated with the cycling of standard on/off heaters. The Phoenix gas valve/blower/control module has been successfully used by millions of boilers world wide, and over 70,000 boilers and water heaters manufactured by Heat Transfer Products.

Cost Competitive:
The Phoenix can cost 5-10% more than a coated steel condensing water heater because the Phoenix uses more expensive, and durable raw materials. You get what you pay for.

Some commercial condensing water heaters need mufflers. Phoenix is super quiet.

Easy to Service:
With all the moving parts easily accessible in the front, Phoenix is a dream to set up and periodically service, like all condensing heaters.

The Era of the 80% Commercial Water Heater is Over
Over 40% of the commercial water heaters sold in 2008, with capacities under 200,000 Btuh, were condensing water heaters. Surprise you? It shouldn’t.

Conventional, bottom-fired, glass-lined water heaters have increased in price far faster than condensing water heaters. And gas prices have increased dramatically. As a result, in most commercial applications a condensing water heater has no more than a three year payback. In many applications, less than two!

On top of that, the average service life of a traditional commercial water heater is short - as few as 4 years by some estimates. Compare that with the 10 year estimated life expectancy of the HTP Phoenix tank. Put these two facts together, and you can see why 80% commercial water heaters are going the way of the Dodo.

A “Throw Away” mind set. Get over it.
throw away water heaterThe major manufacturers of commercial water heaters have long been wed to old technologies which are ill-suited for condensing operation. All it takes is one imperfection in the coating of a steel tank, either outside or inside the combustion heat exchanger, and a leak will occur … “sooner” rather than “later” in most cases.

Contrast that with the ultra high efficiency design of the Phoenix Water Heater which is based on a long life span, not planned obsolescence. Heat Transfer Products, America’s leading maker of premium stainless steel tanks for over 25 years and maker of the Phoenix, does it right. The stainless steel/ cupronickel used in the Phoenix lasts longer than coated steel and sacrificial anodes. Period.

The Right Size:
The Phoenix matches 100,000, 130,000 and 199,000 btus with 55, 80 and 119 gallon tanks. The Phoenix 80 gallon heaters match performance with the competitions 100 gallon heaters. (Example: Phoenix 199-80 matches Cyclone 199-100) While the Phoenix is not available in ASME models, two PH199-80 gallon Phoenix heaters cost less than one 400 mbh/ 130 gallon ASME Cyclone, including installation.

Phoenix or Tankless?
The Phoenix has a tank that accommodates recirculation systems easily, is not sensitive to mineral build up on the heat exchanger and can manage peak load demands more cost effectively than a tankless. A 199,000 btu condensing tankless water heater can produce a maximum of 6.5 gpm at 60 degree rise. If the peak load of the project will ever exceed 6.5 gpm one has to employ two tankless water heaters, while one Phoenix tank can manage 10 minutes peak demands often seen in commercial applications.

Phoenix Solar:
The Phoenix 96% heater supplies commercial water heating and solar water heating , all in one integrated appliance that includes the solar collectors and the pump/control module. This package supplies the most cost effective combination of high efficiency water heating with renewable energy for apartment, health clubs, laundromats or any commercial user of hot water up to 1,000 mbh. For more information:

Phoenix Residential:
The Phoenix water heater is also used widely for delivering 96% water heating and hydronic heating (radiant, air handler, fan convector) in residential homes. One can also use the Phoenix in commercial settings to primarily supply space heating via air handlers and serve as a water heater. Visit phoenix residential.

Who is Heat Transfer Products?
Heat Transfer Products (HTP) manufactures the Phoenix near New Bedford, Massachusetts. HTP  also manufacturers Superstor stainless steel indirect water heaters and the Munchkin, Contender and Modcon stainless steel modulating boilers. HTP is the largest manufacturer of small stainless steel tanks in America and has been in business since 1974. Visit:

  • Recovery efficiency of 96% dramatically reduces operating costs
  • 316L stainless steel tank
  • Corrosion resistant, high efficiency 90/10 Cupronickel stainless combustion chamber
  • Very Quiet: 45dB at 5’
  • Direct venting PVC pipe - 85’ equivalent length
  • Load matching 3:1 modulation
  • Zero clearance to any combustible surface; can be installed in almost any closet
  • No burning pilot light. Spark ignition
  • Low Nox/SCAQMD listed
  • Plastic jacket with 2” environmentally-safe, CFC-free, polyurethane, water-blown foam insulation
  • Less that 1/2 degree F per hour heat loss (R17)
  • Electronic low water cutoff
  • Self-diagnostic electronic control
  • Temperature range from 70 degrees F to 160 degrees F
  • Front access cover to equipment is easily accessible
  • Commercial: 1 yr. parts/3 yr. tank

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