- Menu
- Space Heating
Space Heating
HTP's space heating boilers provide ultimate comfort and the best overall efficiency ratings while keeping maintenance and operating costs to a minimum. With a HTP high efficiency boiler you can achieve the heat your family or business needs while also saving money and energy.
Residential
- • Elite Ultra Wall and Floor New
- • Elite Fire Tube Ultra New
- • Pioneer
Commercial
- • Elite Ultra Duo New
- • Elite XL
Accessories
- •ELU/EFTU 0-10V Clip-In Board New
- • ELU/EFTU Cascade Kit New
- • ELU/EFTU Common Vent Kit New
- • Elite XL Stack Rack New
- • Elite XL System Flow Kit New
- • HTP Link New
- • ModBus BACnet
- • The Universal Stand
Not sure which type of space heater is right for you? Learn more by viewing our space heating selection guide
Can’t find your product? Click here
Discontinued products Click here
- Water Heating
Water Heating
Residential
Tank TypeGas SeriesElectric SeriesCommercial
Tank TypeGas SeriesElectric SeriesHTP has several water heating options for your needs: tank type water heaters, tankless water heaters, our Crossover series water heaters, or supply boilers. HTP also has models for both your residential or commercial needs.
Not sure which type of water heater is right for you? Learn more by viewing our water heating selection guide
Can’t find your product? Click here
Discontinued products Click here
- Indirect Water Heating
Indirect Water Heating
HTP's Indirect Water Heaters can be a part of your combination heating system whether you need indirect tanks or storage tanks for your residential or commercial needs.
Not sure which type of indirect water heating option is right for you? Learn more by viewing our indirect water heating selection guide.
Can’t find your product? Click here
Discontinued products Click here
- Combination Appliances
Combination Appliances
Combination appliances save homeowners money on operating expenses, reduces overall installation costs, and takes up less space than traditional space heating and hot water appliances.
Floor and Wall Combis
- • Elite Ultra Wall and Floor New
- • Elite Fire Tube Ultra New
Phoenix Series
Taken to the Max
The SuperStor® Ultra Max is the Indirect water heater you know and love, with upgraded features and benefits that have been taken to the max. Built with a laser welded stainless steel tank and corrugated stainless steel heat exchanger, the Superstor Ultra Max is built to last by resisting corrosion. Average commercial water heater lifetime is about 6 years; the SSU Max will outlast any coated steel tank on the market!
Max Performance, Max Efficiency
With help from its Stainless Steel Heat Exchanger, the SSU Max Indirect was built for MAX performance. Some of the benefits include higher heat transfer, improved first hour rating and less pressure drop than the competition. The SSU Max can also generate 50% more hot water than many water heaters of similar size. When used in conjunction with an HTP high efficiency boiler, operating costs decrease even further. HTP’s SSU Max comes with a surface mounted thermostat for highly accurate temperature control as well. Did we mention it’s also virtually maintenance free?
Versatility to Meet Your Needs
HTP’s SuperStor® Ultra Max is suitable for both residential and commercial applications. It features top connections: T&P Relief Valve and Stainless steel inlet and outlet ports. The SSU Max is available in 5 different gallon capacities.
ModelsGallons180°F Boiler Water First Hour Rating 180°F Boiler Btuh/Size Recommended Flow RatePressure Drop at Recommended Flow RateMSSU-30N30228 Gal.95,7008 GPM1.7 FtMSSU-45N40257 Gal.122,26510 GPM2.3 FtMSSU-60N60303 Gal.155,23010 GPM2.3 FtMSSU-80N80347 Gal.192,00012 GPM3.0 FtMSSU-119N100387 Gal.194,00014 GPM3.75 Ft
Max Savings
An indirect water heater is one the most cost effective ways to heat water because it eliminates the tremendous flue losses associated with gas-fired storage water heaters and the hassles and extra costs of tankless gas water heaters. When used with a modern, high-efficiency boiler, these energy savings hold true even in the summer when your boiler isn’t needed for heat.
Max Quality
The SSU Max is manufactured with long lasting, 316L stainless steel construction to resist corrosion. The high output corrugated heat exchanger is also made with 316L stainless steel to provide maximum efficiency and heat transfer with increased surface areas over traditional smooth tube coils.
Max Assurance
The SSU Max is backed by a Lifetime Limited residential warranty and 5 year Commercial Warranty when registered online.
Your Personal Assistant is a Download Away!
Download HTP’s FREE Mobile App. Perfect for when you need guidance on the job. You’ll be able to access installation manuals, parts and installation drawings, brochures, troubleshooting videos and more.
download the app
Get help buying
Testimonials
Rebate center
Warranty claim
Customer Support
HTP Warranty
Shop Parts
Stay Connected
© Copyright Ariston Thermo USA LLC parent company of HTP | 272 Duchaine Boulevard | New Bedford, MA 02745 | 800-323-9651 Careers | Sitemap
